Our History

HLNY is the local, New York Metropolitan, chapter of the American College of Healthcare Executives (ACHE), an international professional society of more than 49,000 healthcare executives. Within ACHE there are 8,600 Fellows with Board Certification in Healthcare Management.  We support high ethical standards and conduct, and promote the mission of ACHE. Through HLNY, ACHE members have access to local professional development and networking events, mentoring, and career services which include a jobs data bank and resume support.

Our mission is to advance healthcare leadership and management excellence through professional enrichment and continuing education of our members.

  1. 1969

    Metropolitan Healthcare Administrators Association (MHAA) established.

  2. 1992

    Women's Health Network (WHN) & Hudson Valley Healthcare Executives Association (HVHEA) established.

  3. 2002

    MHAA, WHN, and HVHEA merge to form Healthcare Leaders of New York (HLNY).

  4. Currently

    HLNY continues to be the premier network for Healthcare Professionals.

Leadership

  • Halim Kaygisiz

    President

    Halim Kaygisiz, MHA, is a healthcare operations leader and chapter president of the Healthcare Leaders of New York (HLNY), the New York chapter of the American College of Healthcare Executives (ACHE). He currently serves as Manager of Business Operations for the Heart Institute at Stony Brook Medicine, where he partners with clinical and executive leadership to advance the strategic, financial, and operational priorities of the cardiology service line within one of the region’s leading academic health systems.
    In this role, Halim oversees key operational initiatives including financial management, capital planning, and workflow optimization to strengthen program performance, improve operational efficiency, and enhance patient care delivery across a complex cardiovascular program.
    Halim began his career in community-based public health, supporting federally funded initiatives through the Office of Minority Health (OMH) and the Substance Abuse and Mental Health Services Administration (SAMHSA). He later advanced to the role of Program Director at a nonprofit organization, where he led a major Delivery System Reform Incentive Payment (DSRIP) initiative focused on expanding access to care and increasing preventive wellness visits for uninsured and underinsured residents throughout Suffolk County. These experiences helped shape his ongoing commitment to population health, health equity, and community-centered healthcare delivery.
    Beyond his operational leadership, Halim is deeply engaged in advancing leadership development within the healthcare profession. As President of Healthcare Leaders of New York (HLNY), he works with the Board of Directors to expand professional engagement, mentorship, and educational programming that supports the next generation of healthcare leaders. He previously served on the HLNY Board as President-Elect, Marketing/Communication Chair and remains an active member of ACHE.
    Halim also contributes to the academic development of emerging healthcare professionals as an adjunct instructor and preceptor in the Master of Health Administration program at Stony Brook University. He is a former Board Member of iHealth New York State and a founding member of the Stony Brook University MHA Program’s Student Advisory Council.
    He holds a Bachelor of Science in Psychology with a concentration in Human Services and a minor in Criminal Justice from Walden University and a Master of Health Administration from Stony Brook University. His leadership and commitment to advancing health equity and professional development have been recognized through several honors, including the Leonard Achan Sr. Health Equity Scholarship (2021) and the Early Healthcare Careerist Award (2025).

  • Jeena Velzen, PhD, FACHE

    President-Elect

    Jeena Velzen, PhD, FACHE serves as the Senior Director for Strategic Initiatives - Theranostics at East River Medical Imaging, PC. In her role, she leads the clinical program development and go-to-market strategy for the Molecular Imaging & Theranostics service. Additionally, she is responsible for start-up and study management of radiology imaging & radiopharmaceutical clinical trials. Prior to joining East River Medical Imaging in 2025, Jeena spent nearly 8 years at Memorial Sloan Kettering Cancer Center in progressive roles, ultimately becoming an Associate Director for the Transformation Management Office, focused on Enterprise Continuous Improvement. She led interprofessional teams to enhance quality, patient safety, and system performance across Inpatient, Ambulatory, Perioperative, Research, and Revenue Cycle, leading initiatives ranging from early discharge, clinic optimization, charge capture, to transitioning EHRs to Epic.

    Growing up in West Michigan, Jeena completed her Bachelor's in Mechanical Engineering and Pre-Medicine from Calvin University in 2010. She pursued graduate degrees from the University of Nottingham in England, obtaining her Master's in Industrial Engineering and Operations Management, and Doctorate in Human Factors. Jeena is highly trained in improvement science, systems thinking, change management, and human-centered design. She has received certifications as a Lean Six Sigma Black Belt and Prosci Change Practitioner. In 2025, Jeena advanced to become a Fellow of the American College of Healthcare Executives (FACHE) and offers guidance to others to prepare and pass the Board of Governors Exam.

    Since joining ACHE in 2020, Jeena has served as a HLNY committee member, held roles as Chair of Analytics and Chair of Membership, supporting membership growth and engagement. Several initiatives that she pioneered for HLNY are the annual Membership Townhall and Survey, regular Membership Regional Mixers, the inaugural HLNY Softball Team, and establishment of the Member and Student Member of the Year Awards. She received the 2024 ACHE Regent’s Early Career Healthcare Executive Award, and has been dedicated to providing mentorship to students and early careerists, serving as a mentor for the MHA Mentorship Program for Icahn School of Medicine at Mount Sinai. Jeena is also a proud member of the National Association of Latino Healthcare Executives (NALHE) and a volunteer with the Association of Asian Healthcare Leaders (AAHL).

  • Darren Deoraj, MHA

    Immediate Past President

    Darren H.P. Deoraj was born and raised in Queens, NY, and currently resides in Manhattan's Upper East Side. An avid New York sports fan, traveler, and tennis player, Mr. Deoraj has dedicated over a decade to healthcare administration. He began his career at the Icahn School of Medicine at Mount Sinai, managing business operations for the Department of Medical Education. Mr. Deoraj later served as Assistant Director of Hospital Operations at NYC Health + Hospitals | Coney Island, overseeing after-hours operations for the 377-bed facility.

    He transitioned to NYC Health + Hospitals | Gotham Health, Gouverneur, as Assistant Director of Ambulatory Care, managing services across multiple disciplines, including primary care, surgical specialties, and neighborhood health centers. Mr. Deoraj returned to Mount Sinai as Director of Urology, overseeing operations and finances for multiple locations. Promoted to System Director of Operations for Urology, he now leads service line growth and programmatic success across the Mount Sinai Health System.

    Mr. Deoraj has dual degrees, a Bachelor of Science in Biology and a Bachelor of Arts in Politics and Government from The University of Hartford along with a Master of Health Administration degree with honors from Hofstra University. Actively involved in professional organizations, he has held a variety of leadership roles with Healthcare Leaders of New York, Hofstra University, and Stony Brook University. His accolades include the 2018 Early Career Healthcare Executive Regent’s Award and the 2024 Mount Sinai Urology Outstanding Achievement Award for advancing prostate cancer screening efforts. Mr. Deoraj’s contributions reflect a commitment to excellence and equity in healthcare leadership.

  • Ramsey Abdallah

    Vice President

    Ramsey Abdallah is the System Assistant Vice President of Operations for Northwell Health, where he oversees the enterprise portfolio of government-based value-based care programs, including the Medicare Shared Savings Program and the Quality Payment Program, spanning more than 29 hospitals, 10,000 physicians, and 800+ ambulatory sites. In this role, Ramsey leads system wide operational strategy, quality governance, and performance improvement initiatives that drive measurable gains in clinical outcomes, care transformation, and financial performance.

    He directs Northwell’s ACO data integration and digital quality reporting strategy across 30+ EMRs, enabling unified analytics, operational alignment, and readiness for the transition to eCQMs and dQMs. Under his leadership, Northwell has achieved significant improvements in depression screening, hypertension control, diabetes management, and preventive care, contributing to tens of millions in shared savings and national recognition, including the NAACOS ACO Excellence Award, the MSSP Winners Circle, and a President’s Award finalist distinction.

    Ramsey is deeply committed to leadership development and workforce advancement. He serves as a mentor in Northwell’s Mentoring & Professionalism in Training (MAP-IT) program, and the ACHE Leadership Mentoring Network and Career Advising Network, where he supports emerging and mid-career professionals across the region. Nationally, he contributes to advancing quality and operations as a member of the NQF Leadership Consortium, AMGA Quality Council, NAACOS Quality Implementation Roundtable and Boot Camp instructor, and as an item writer for the CPHQ, FACHE, and CPPS certification exams.

    He holds a Doctorate in Healthcare Administration, an Executive MBA in Healthcare Management, and multiple executive certificates. Ramsey is board-certified as a CPHQ, CPPS, PMP, CMQ/OE, and is a Fellow of both the American College of Healthcare Executives (FACHE) and the American College of Health Data Management (FACHDM).

  • Nicole Rodecker

    Treasurer

    Nicole Rodecker is an accomplished executive with over 13 years of progressive leadership in healthcare operations, specializing in strategic planning, financial stewardship, and clinical transformation within academic medical centers. With a strong foundation in business and health administration, Nicole is known for her ability to lead multidisciplinary teams, align operational goals with institutional missions, and execute large-scale initiatives that enhance patient access, care quality, and organizational performance.

    Nicole’s career spans key leadership roles across mental health, surgical and obstetric departments, where she has opened new clinical sites, launched call centers, and improved quality metrics such as MIPS scores and patient satisfaction rates. As a consultant, she has helped private psychiatry practices build efficient, compliant operational infrastructures while driving cost reductions.

    Nicole holds an MBA in Health Administration from St. Joseph’s University and a BS in Business Management from Stony Brook University. She is trained in Six Sigma with previously held certification as a Professional Coder, and is active in numerous professional organizations, including the American College of Healthcare Executives and Toastmasters International, where she serves as Area Director.

    Her current goals include earning the FACHE credential, completing Six Sigma Black Belt certification, and continuing to lead innovative, large-scale initiatives that shape the future of academic medicine.

  • Kerri A. Reino, FACHE, CPHQ, CPXP, PMP, SHRM-SCP

    Secretary

    I am excited to have been elected to serve as Board Secretary of Healthcare Leaders of New York (HLNY) for 2026. As a Fellow of the American College of Healthcare Executives (FACHE) and an active member of both ACHE and HLNY since 2019, I am deeply committed to advancing healthcare leadership and fostering meaningful professional connections across New York.
    Professionally, I serve as Department Administrator for Stony Brook Emergency Medicine, where I support clinical, operational, and strategic initiatives in a complex academic healthcare environment. I hold five academic degrees, including an MBA from St. Joseph’s University and a Master’s degree in Human Resource Management from Stony Brook University. I am currently halfway through my PhD in Systems Science and Engineering at SUNY Binghamton, further strengthening my analytical and systems-based approach to leadership. My research interests include Human Factors Engineering, Neurodiversity, & AI.
    I am an active member of HLNY, SHRM, PMI, HIMSS, and HFMA, reflecting my interdisciplinary engagement across healthcare management, project leadership, human resources, health information systems, and finance. In addition, I hold multiple professional certifications, including FACHE, CPXP, PMP, CPHQ, SHRM-SCP, among others. These credentials demonstrate my ongoing commitment to excellence, quality, patient experience, and organizational performance.
    As Secretary, I bring a strong focus on organization, accuracy, transparency, and effective communication. My professional background has prepared me well to support board operations, maintain records, and ensure timely and clear communication across the chapter.
    Outside of my professional and academic pursuits, I am a huge dog lover, a simple but meaningful part of who I am that often helps spark connection and conversation. I am grateful for the opportunity to serve HLNY and look forward to contributing to the chapter’s continued growth and success in 2026.

  • Arthur A. Gianelli, MA, MBA, MPH, FACHE

    ACHE Regent - New York

    Arthur Gianelli is the President and Chief Transformation Officer of One Brooklyn Health (OBH), a comprehensive health system dedicated to serving Brooklyn’s diverse communities. Appointed in May 2025, Mr. Gianelli is responsible for integrating operations, driving cultural change, and developing a sustainable business model aligned with New York State’s transition to Value-Based Payments and Global Budgets.

    From 2014 to 2025, Mr. Gianelli held leadership roles in the Mount Sinai Health System, including Chief Transformation Officer and President of Mount Sinai Morningside Hospital. In these roles, he led improvement initiatives across the system and abroad, enhanced patient experience, and advanced lean process improvement. Under his leadership, Mount Sinai Morningside earned national recognition for its command center response during COVID-19 and ranked among the top U.S. hospitals in cardiology and smart technology.

    Earlier, he served as President and CEO of Nassau Health Care Corporation (2006–2014), where he improved finances, patient outcomes, and expanded services. Before that, he led fiscal turnarounds in local government as Deputy County Executive for Nassau County and Director of Operations for the Town of North Hempstead.

    Mr. Gianelli serves on several healthcare boards and was elected Regent for Metropolitan New York by the American College of Healthcare Executives in 2024. He is a Fellow of ACHE and recipient of multiple professional and civic awards.

    He holds degrees from St. John’s University, Brown University, Dowling College, and Columbia University, and teaches at Columbia’s Mailman School of Public Health and the Icahn School of Medicine at Mount Sinai.

  • Evelyn Nieves

    Program Committee Co-Chair

    Evelyn Nieves, MPH, is an accomplished healthcare executive with more than 2 decades of progressive leadership experience in ambulatory operations, strategic planning, and patient access transformation. She recently joined the Mount Sinai Health System as Administrative Director for the Department of Urology at Mount Sinai West and Mount Sinai Morning side, where she is responsible for overseeing operational performance, strategic initiatives, and administrative functions that drive excellence in patient care, service, and access. Prior to joining Mount Sinai, Evelyn served as Associate Executive Director / Ambulatory Care Administrator at NYC Health + Hospitals, where she led operations for over 70 outpatient practices and 150+ staff members across multidisciplinary teams.

    Her leadership produced measurable improvements in efficiency, patient access, and financial performance enhancing copay collections, optimizing scheduling templates, standardizing workflows to strengthen overall operational outcomes and creating new services for the community. 

    A transformational and mission-driven leader, Evelyn is dedicated to advancing equity, quality, and innovation in healthcare delivery. Proud of her Latina heritage, she continues to advocate for community health and education equity through her
    involvement with professional and public health organizations including NAHLE, HFMA, ACHE/HLNY, and APHA. She was named the Healthcare Leaders of New York (HLNY)’s Member of the Year which embodies her commitment to service, and a genuine desire to uplift a community of leaders.

    Evelyn is currently pursuing Fellow status with the American College of Healthcare
    Executives (FACHE) and continues to invest in her professional growth through
    advanced programs in leadership, change management, and innovation. She is known for her ability to unite teams around shared goals, inspire excellence, and lead with empathy, agility, resilience, and strategic vision.

  • Sumukh Sathnur

    Program Committee Co-Chair

    Sumukh Sathnur is the Executive Director, Business Development and Integration in the Department of Pathology at Weill Cornell Medicine. In this capacity, he is responsible for integrating faculty group operations and optimizing professional revenue capture across affiliated hospitals; growth and startup of clinical programs; operational improvements across
    faculty and lab operations; commercial partnerships to advance real-world diagnostic and treatment modalities; and the expansion of the Center for Translational Pathology, a department-operated research and innovation core.
    Prior to joining Weill Cornell Medicine, Sumukh worked in consulting, negotiating affiliations, partnerships, and funds flow arrangements between entities at academic medical centers. He drew upon prior operational experience at a top pediatric hospital as a Department
    Administrator and in performance improvement, where he had broad responsibilities including starting subspecialty clinical programs, expanding access, advancing multidisciplinary
    collaborative programs, restructuring medical group operations, and optimizing revenue cycle functions across the enterprise. Sumukh started his career managing support services operations at a Level I trauma center after an administrative fellowship at a multi-state
    integrated health system. He believes in creating lasting, meaningful results through data-driven decision-making and driving employee engagement. Sumukh holds a Master of Healthcare Administration from the University of Minnesota and
    Bachelor of Science in Chemistry from the University of California, Riverside. He has been a member of ACHE since 2016, joining the HLNY programs committee in 2025 before stepping into the role of Programs Co-Chair. He is pursuing certification as a Fellow of ACHE.

  • Ivleen Kaur Singh

    Marketing & Communications, Chair

    Ivleen is an Epic Trainer at Northwell Health, where she trains end users on how to effectively navigate and utilize the Epic electronic health record system. She currently serves as the Marketing Committee Chair for HLNY, leading marketing and communications efforts to enhance organizational visibility and member engagement.

    Ivleen earned her Master of Health Administration from Hofstra University in 2025. She has been a member of HLNY since 2023 and previously volunteered on the Membership Committee.

  • Neha Ahmed Asam

    Membership, Chair

    Neha Ahmed Asam serves as an International Program Manager at Memorial Sloan Kettering Cancer Center, where she has been for four years. In this role, she oversees global programs that advance cancer care, education, and institutional collaboration. She works closely with clinical teams, operational leaders, and international partners to coordinate complex initiatives, align strategic objectives, and support successful program execution.

    Neha holds a Master of Health Administration (MHA) from Rutgers University and is a certified Lean Six Sigma Black Belt. She applies her expertise to improve processes, support team efficiency, and ensure that programs are both effective and sustainable. Her professional experience has shaped her approach to healthcare management, emphasizing collaboration, strategic thinking, and practical solutions to complex challenges.

    Throughout her career, Neha has sought opportunities that blend operational expertise with meaningful outcomes. She is dedicated to initiatives that enhance healthcare systems, support international collaboration, and improve experiences for patients and communities. Recognized for her thoughtful and collaborative approach, she tackles challenges with curiosity, adaptability, and a focus on delivering lasting, positive results.

  • Ramya Geddam

    Gala Chair

    Ramya Geddam is the Hospital Services Manager for LiveOnNY, a nonprofit organization committed to helping New York live on through organ and tissue donation. In this role, she utilizes data analytics to prepare and present at multidisciplinary meetings with executive leadership teams of hospitals throughout the greater NYC area and its neighboring counties. She also coordinates the strategic development and implementation of programs to achieve the metrics set forth. She is a clinically strong, foreign-trained physician motivated to integrate clinical knowledge into the administrative side. Ramya also has experience as a health ambassador and a content manager promoting safe community events and delivering National Public Health Week events to the students at Hofstra University.
    Ramya holds a Bachelor of Medicine and a Bachelor of Science from NRI Medical College. Ramya also graduated as part of the Upsilon Phi Delta Honor Society while completing her Master of Health Administration from Hofstra University. During her time at Hofstra, she was proud to serve as the President of Future Healthcare Leaders, bringing the student body together by hosting educational workshops that were also presented as networking opportunities. Ramya has been part of HLNY, attending events and volunteering since 2021 and being a Co-Chair of the Gala committee in 2024 and is grateful to continue in this position.

  • Mmutaka Ajulu-Okeke, MPH, MBA

    Gala, Vice-Chair

    Mmutaka holds a dual master’s degree in Business Administration and Public Health, with a concentration in Health Policy and Management, from Stony Brook University. She also earned a Bachelor’s degree in Public Health from the State University of New York at Albany, providing a strong academic foundation for her work in healthcare administration.

    Her commitment to academic excellence and public health leadership has been recognized through several awards and scholarships, including the Stony Brook Program in Public Health’s Ann Tempone Award, the New York Regional Chapter of the National Association of Health Services Executives (NAHSE) 2023 Scholarship Award, and the HLNY 2023 Achievement Award of Distinction Scholarship.

    Mmutaka is currently working as a Senior Operations Associate for Marketing Operations, where she supports operational efficiency, cross-functional collaboration, and strategic initiatives. She previously completed an Administrative Fellowship at Northwell Health, gaining executive-level exposure through departmental rotations, problem-solving initiatives, and hands-on involvement in organizational operations.

    Since 2021, Mmutaka has been an active member of HLNY and contributes to advancing the organization’s mission and engagement efforts. She began her involvement as a student member, volunteered with the DEI Committee, served two years as Co-Chair of the Marketing Committee, and now serves as Vice Chair of the Gala Committee, which plans and organizes HLNY’s most prestigious event.

    Outside of her professional work, Mmutaka enjoys staying active at the gym, exploring beauty and wellness, and spending quality time with family and friends.

  • Jonathan Acevedo

    Sponsorship, Co-Chair

    Jonathan Acevedo is a Senior Operations Associate at Mount Sinai Health System, where he works alongside executive and department leadership to improve efficiencies and drive financial stewardship throughout the organization. Jonathan joined Mount Sinai in 2014, as a Program Assistant and has worked in numerous departments, including the Adolescent Health Center, Human Resources and Population Health.
    Jonathan holds a Bachelor of Science in Psychology and Computer Art from State University of New York at Oneonta and received his Master’s in Business Administration from the Zicklin School of Business. Jonathan also holds a Project Management Professional credential form the Project Management Institute. Jonathan has been a member of HLNY since 2023 and has served on the Sponsorship Committee since 2024. Jonathan is excited to now serve as Co-Chair of the Sponsorship Committee and serve our clients in driving the value of sponsorship.

  • Carla Sison

    Sponsorship, Co-Chair

    Carla Sison currently serves as the Director of Operations, Office of Patient Centered Care, Nursing Administration at New York City Health + Hospitals. In her role, she supports the system’s Chief Nursing Executive in special projects and various system nursing initiatives. She actively participates in various nurse leader workgroups advocating for mentoring, professional development, continuing education, and retention programs. In addition, she works hand in hand with the Equity and Access council chair to set up the various workplace inclusion groups connecting employees around shared interest, race, ethnic, or identity.
    Prior to joining NYC Health + Hospitals, Ms. Sison worked directly with the Chief Nursing Officer at Mount Sinai Morningside. As Project Manager, she was responsible for implementing various nursing led initiatives and rolling out special projects that impacts patient experience, patient safety and quality, and operational efficiencies. She was Co-chair of the Rewards, Recognition, and Retention Committee, and Co-Chair of the Asian American Pacific Islander Employee Resource Group at Mount Sinai Morningside.
    Ms. Sison has been in leadership roles for over 20 years and has transitioned to healthcare from the financial industry with expertise in streamlining operations through strategic initiatives, project management, research, and timely execution. She was previously Vice President at Coleman Research Group, a leading expert network and brokerage of knowledge, facilitating short-term consulting engagements between management consultancies, mutual funds, hedge funds, private equity firms, and experts across all industries.
    Ms. Sison holds a Master’s degree in Business Administration from St. John’s University and certificates in Healthcare Executive Leadership and Strategic Planning and Initiatives at Cornell University.

  • Xavier Merriweather

    Finance Committee

    Xavier Merriweather serves as an Internal Corporate Auditor in Compliance & Integrity at LiveOnNY, a nonprofit organization dedicated to saving lives through organ and tissue donation.
    In this role, Xavier designs and conducts comprehensive process audits and risk assessments across all departments, developing audit frameworks from the ground up by researching regulatory requirements, creating targeted evaluation criteria, and delivering actionable
    recommendations to executive leadership.

    With a strong focus on performance improvement and innovation, Xavier has driven significant organizational transformation through strategic automation initiatives and process optimization. He identified critical gaps in organizational quality processes and spearheaded the development
    of a comprehensive quality program, creating error categorization frameworks, automated trend tracking systems, and staff training protocols that were implemented across the entire
    organization.

    Xavier brings his expertise in regulatory compliance and operational excellence to his role as Chair of the Finance Committee at Healthcare Leaders of New York, where he leverages his analytical acumen and process improvement experience to support the chapter's financial
    stewardship.

    Prior to joining LiveOnNY, Xavier served as a Data Analyst in Performance Improvement and Risk Management at St. John's Episcopal Hospital, where he managed hospital-wide quality
    monitoring and performance indicators. During the COVID-19 pandemic, he led critical reporting efforts to state and federal agencies while providing operational analytics to C-suite
    leadership. In this role, he trained junior analysts on data analysis, executive reporting, and regulatory compliance. Xavier also collaborated with the Director of Risk Management, built occurrence tracking dashboards, analyzed trends to support risk management initiatives, and
    created safety culture initiatives.
    Xavier holds a Bachelor of Science in Healthcare Administration from SUNY Brockport and is a certified Project Management Professional (PMP) through the Project Management Institute. He
    is also an active member of the National Association of Healthcare Executives (NAHSE).

  • Steven Hefter, MPH, PMP

    Analytics Committee, Chair

    health care consulting experience for hospitals, health systems, ambulatory networks, and FQHCs. In his current role, he leads accounts across various products and solutions, supporting clients develop and deliver strategies to succeed in value-based care structures. Mr. Hefter is an experienced consultant in strategy and process transformation, care model redesign, and revenue cycle optimization and compliance. Other skills include project and client relationship management, data analysis, and workflow development.
    Prior to joining COPE Health Solutions, Mr. Hefter served as an Experienced Senior Associate at BDO USA LLP. In this role, Mr. Hefter assisted health care providers improve financial and operational performance through operational compliance assessments, strategic policy report development, merger and acquisition due diligence, and revenue cycle evaluation. Specific expertise includes designing and implementing a compliance program covering ambulatory revenue cycle operations and performing assessments for specific service lines to identify resource, technology, and process-related gaps for various providers.

    Mr. Hefter has been a member of Healthcare Leaders of New York (HLNY) since 2019 and has served on the Analytics committee since 2022.

    Mr. Hefter earned his Bachelor of Arts in Economics and Public Health from Tufts University in Medford, MA and his Master of Public Health degree from the Columbia University Mailman School of Public Health in New York. In addition, Mr. Hefter earned his Project Management Professional (PMP) certification in March 2023.

  • Dominick Marrone

    Analytics Committee, Vice Chair

    Dominick Morrone is a Process Improvement Engineer in the Transformation Management Office at Memorial Sloan Kettering Cancer Center, where he partners with clinical, operational, and executive leaders to solve complex healthcare challenges using a structured, data-driven approach. His work is grounded in process thinking and the application of Lean, Six Sigma, and improvement science to design, test, and scale sustainable solutions across highly specialized care environments.
    At MSK, Dominick has led and supported initiatives focused on optimizing ambulatory chemotherapy infusion centers, improving patient access, throughput, and scheduling efficiency while balancing safety, quality, and patient experience. He has also contributed to the improvement of CAR T cell manufacturing and delivery processes, working closely with multidisciplinary teams to strengthen reliability, coordination, and operational readiness in advanced cellular therapy programs. In addition, his work supports clinical and translational research by enabling more efficient and standardized processes for biospecimen handling, consent workflows, and laboratory operations, helping advance more tailored testing and treatment approaches for cancer patients.
    Dominick is currently pursuing a Doctorate in Health Administration, with an expected graduation in 2026. His doctoral work focuses on healthcare operations, access, and system performance, bridging applied improvement work with research-informed methods. He holds both a Bachelor of Science and a Master of Science in Industrial and Systems Engineering, which form the foundation of his analytical and systems-oriented approach.
    A member of Healthcare Leaders of New York since 2022, Dominick has served on the Analytics Committee since 2024. He is passionate about advancing the use of analytics to inform decision-making and drive meaningful change across healthcare systems. His professional interests include healthcare improvement, technology enablement, health policy, and gaining experience in academia through teaching and applied research.

  • Aditya Bissoonauth, MPH, MBA, MCHES, PMP

    Higher Education Network, Co-Chair

    Aditya Bissoonauth serves as the Director of the Family Medicine Service Line at Northwell Health, overseeing the administration, clinical operations, academics, research, global health initiatives, and growth initiatives. He collaborates closely with executive leadership to expand and enhance Family Medicine services within the organization, throughout local communities, and with global stakeholders to improve accessibility and health outcomes.
    In addition to his leadership role, Mr. Bissoonauth holds dual academic positions. He is an Assistant Professor of Family Medicine at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell and as an Assistant Professor of Population Health (Adjunct) in the Department of Population Health at Hofstra University. Mr. Bissoonauth is also the Assistant Program Director of Hofstra’s Master of Public Health Program. His teaching responsibilities span across undergraduate Health Sciences and Community Health programs, as well as graduate Public Health studies. Additionally, he works with medical students, Family Medicine residents, and undergraduate/graduate students, advancing workforce development, mentorship, leadership, and academic excellence in future healthcare professionals.
    Mr. Bissoonauth earned his bachelor’s degree in Toxicology from St. John’s University, followed by Master of Public Health and Master of Business Administration degrees from Hofstra University. Currently, he is pursuing a Doctor of Public Health degree at the Johns Hopkins Bloomberg School of Public Health focused on healthcare leadership and management. Mr. Bissoonauth has been a member of the American College of Healthcare Executives (ACHE) since 2020.

  • Katherine Sanchez

    Higher Education Network, Co-Chair

    Katherine Sanchez is a passionate healthcare leader dedicated to advancing health equity and promoting the true potential of all individuals. Katherine's journey in healthcare has provided her
    with a foundational understanding of its complexities. Witnessing healthcare disparities within her Queens community inspired her to become a champion for change. She has held various roles within Northwell Health, including Administrative Fellow.

    As Co-Chair of the Higher Education Network at Healthcare Leaders of New York (HLNY), Katherine connects her practical experience with a commitment to mentorship and education.
    She works closely with young professionals, providing personalized support in areas such as resume development, networking, and navigating the job market. Her mentees have achieved a range of successes, from securing competitive fellowships to gaining valuable job experience and earning recognition for their contributions to health equity.
    As an active member of the National Association of Latino Healthcare Executives (NALHE) and Co-lead of the new members committee for the Women at Northwell Employee Resource Group
    (BERG) at Northwell Health, Katherine fosters inclusive leadership and promotes access to resources. She is currently a Program Manager at the Institute for Community Health and Wellness, working alongside clinical and executive leaders to develop impactful programs addressing health disparities. She is driven by a deep desire to create opportunities for all to
    thrive and believes that education is foundational, opening doors to accessible healthcare, economic opportunity, and ultimately, the realization of one's full potential. Katherine is eager to
    share her experiences and insights with students and educational programs to inspire the next generation of healthcare leaders.

  • Maxine Legall

    Diversity & Inclusion Committee, Chair

    Maxine L. Legall, MBA, MSW, CPXP, brings over 20 years of dynamic experience driving organizational development and transformation across healthcare, non-profit, and corporate sectors. As founder and CEO of Thrive Inclusively LLC, based in New York, Maxine is dedicated to empowering healthcare and non-profit leaders and organizations to achieve their full potential. Thrive Inclusively specializes in fostering growth through diversity, equity, and inclusion strategies, cultural transformation, and leadership growth and development.

    Previously, Maxine served as Chief Diversity, Equity, and Inclusion Officer at The Jewish Board, where she played a pivotal role in advancing strategic diversity initiatives. Her leadership also extended to Mount Sinai Morningside as Director of Patient Experience & Cultural Transformation, where she developed impactful patient experience programs and collaborated on initiatives to elevate patient care standards.

    Maxine holds an MBA in Health Service Management from Hofstra University, an MSW in Advanced Generalist Practice and Programming from Columbia University School of Social Work, and a cum laude bachelor’s degree in psychology with minors in Sociology and Black Studies from the State University of New York. She is also a Certified Patient Experience Professional (CPXP).

    Passionate about teamwork, inclusion, empathy, engagement, and strong leadership, Maxine exemplifies a commitment to driving positive change and achieving collaborative success.

  • Anjana Sreedhar, MPA

    Diversity & Inclusion Committee, Vice-Chair

    Anjana Sreedhar, MPA is a published author and hospital/health system operator, having spent her career in health care consulting and hospital operations. Having started off her career at Advisory Board working on best-practice research for hospital-based pharmacies, Anjana transitioned to working in inpatient hospital operations as an administrative fellow at NYU Langone Health. She currently serves as Project Manager at NYU Langone Health's Perlmutter Cancer Center, working on strategy and operations efforts for NYU's oncology patients. She also published her first non-fiction book Health Care of a Thousand Slights, documenting the history of health disparities among marginalized populations in the United States. She has presented her work to corporate, nonprofit, and student audiences. Anjana is excited to be co-leading the DEI committee this year and working with the rest of the HLNY board to support professional development.

  • Kirk Castillo, FACHE

    Advancement Committee, Chair

    Kirk Castillo is the Senior Operations Manager at the Mount Sinai Hospital, where he oversees dialysis technical operations, supply chain management and regulatory compliance. With over a decade of experience in dialysis operations, Kirk has cultivated a transformative culture that has resulted in significant process improvements and successful regulatory site visits across multiple hospital dialysis centers and private outpatient units. He also leads CMS and Joint Commission regulatory surveys with consistently high success rates. Kirk's skill set includes leadership, project management, supply chain management, and finance. Prior to joining Mount Sinai Hospital, Kirk held leadership roles at Sound Shore Medical Center and the Brooklyn Hospital Center. He holds an MBA in Healthcare Administration and is a Fellow of the American College of Healthcare Executives.

  • Frankie Hamilton

    Clinical Inclusion Advisor

    Frankie Hamilton is a dual master's prepared, board-certified nurse leader with extensive experience in both clinical and administrative roles. He formerly taught high school chemistry and biology for four years before he decided to pursue a career in nursing. He began his journey as a med/surg nurse and has since progressed through various leadership positions, including: Assistant Nurse Manager, Quality Management Specialist, Assistant Director of Nursing, Nursing Administrator, Deputy Chief Nursing Officer, Senior Director of Ambulatory Care, and presently, Vice President of Nursing Operations at Maimonides Medical Center, a level one academic, tertiary care hospital in Brooklyn, NY.

    In his current role, Frankie has executive responsibility for nursing operations, professional practice, and workforce strategy across the medicine service line. He also leads the development and execution of nursing policies, operational standards, and evidence-based practice to ensure the delivery of safe, high-quality, and equitable care. In partnership with executive and physician leaders, Frankie aims to advance regulatory compliance, improve quality outcomes, enhance nursing governance, and optimize organizational performance in alignment with a systems strategy.

    In addition to his clinical and leadership experience, Frankie is deeply involved in various professional organizations. He serves as a board member at large and President of the Local NYC Chapter of the American Association for Men in Nursing. He is also the Clinical Inclusion Advisor for the Healthcare Leaders of New York chapter of the American College of Healthcare Executives and an advisor on the Sepsis Advisory Board through the Sepsis Alliance. Frankie is a member of the Dean's Advisory Board for the Hofstra School of Nursing and Physician Assistant Studies, and serves as a member of the awards committee for the American Nurses Association, New York chapter.

    Frankie serves as a Lieutenant Commander in the United States Navy Reserves Corps where he works to ensure the medical readiness of Sailors in preparation for deployments and mobilizations. He is also the Assistant Training Officer for his unit, and the Assistant Awards Officer for his command based in Bethesda, Maryland.

    On the education front, Frankie is adjunct faculty at the University of Mount Saint Vincent in the Bronx and is pursuing his PhD in Nursing at Seton Hall University, as well as his DNP in Nursing Leadership at Quinnipiac University. His book of work is focused on improving the delivery of safe, quality patient care, and to elevating practice and nursing excellence within our profession.

  • Sindy Louisma

    Board Member-at-Large, Hudson Valley

    Sindy Louisma is a highly accomplished and mission-driven healthcare leader dedicated to strengthening clinical operations and advancing health equity across diverse communities. With an extensive background in healthcare administration and clinical operations, she currently serves as the Associate
    Director of Clinical Operations, where she consistently demonstrates exceptional leadership, strategic vision, and a deep commitment to improving care delivery. In this role, Sindy oversees critical operational
    functions, supports the development of multidisciplinary teams, and implements student clinical placements that enhance quality, efficiency, and accessibility across the continuum of care.

    Throughout her career, Sindy has established herself as a passionate
    advocate for equitable healthcare access. She actively collaborates with influential healthcare leaders, government partners, and community organizations to bring attention to some of the most pressing health concerns facing New Yorkers today;
    including chronic disease management, preventive health education, and conditions such as Alzheimer’s
    disease that disproportionately impact vulnerable populations.

    Sindy’s commitment to health equity is further exemplified through her leadership in the Health Equity Influencer Program at Mercy University School of Nursing. In this role, she works closely with nursing
    students to develop and deliver community-based health education initiatives designed to meet people
    where they are. Together, they engage residents through asthma management education, blood pressure screenings, diabetes awareness, and other preventive services aimed at reducing avoidable emergency room visits and empowering individuals to take charge of their health.
    As a Fellow of the New York Academy of Medicine, Sindy exemplifies a deep commitment to service, pairing her strategic approach to leadership development, community engagement, and patient advocacy with a passion for meaningful change. Her work continues to drive positive transformation across New
    York’s healthcare system. Guided by a steadfast mission to advance equity and education, Sindy remains dedicated to building a more informed, empowered, and healthier future for all.

  • Camille Glotzbecker

    Board Member-at-Large, Long Island

    Camille’s career journey began over a decade ago at Healthcare Leaders of New York’s (HLNY) “Cocktails with the Chief” event. There, she connected with Mr. Stephen S. Mills, then CEO of NY Hospital Queens, whose mentorship became a cornerstone of her professional development.
    Since that pivotal moment, Camille has held significant leadership roles across the NYC and Long Island regions. She began her career managing critical hospital-wide projects alongside senior leadership and progressed to her current role as the Administrator for the Departments of Surgery and Anesthesiology at NYU Langone Hospital – Long Island. In this capacity, she oversees over 300 employees and manages one of the institution's largest budgets, including operating, personnel, and capital expenditures.
    Camille’s motivation to serve as a Board Member at Large for Long Island stems from her deep appreciation for HLNY’s impact on her career. She is passionate about guiding future healthcare leaders toward similar opportunities for growth and success.

  • Efosa Julius (EJ) Imafidon, DPT, MBA, PMP, FACHE

    Board Member-at-Large, NYC

    Dr. E. J. Imafidon, DPT, FACHE, is a Healthcare Executive with over two decades of healthcare management experience. He is currently the Senior Director of Ambulatory Operations and Business Development at White Plains Hospital, part of the Montefiore Einstein Health System. He leads ambulatory operations for multiple multi-specialty outpatient practices across Westchester County.
    Before joining White Plains Hospital, Dr. Imafidon was the Assistant Vice President of Women’s and Children’s Operations at St. Barnabas Hospital (SBH) Health System, where he managed inpatient and ambulatory services. He started as a clinical physical therapist and advanced to leadership roles, including serving as a licensed assistant administrator of a 199-bed nursing home and rehabilitation center. He provided operation and project management leadership for several healthcare initiatives, including a 50,000 sq ft SBH Health and Wellness Center (women's and children’s practices, urgent care, fitness center, rooftop farm, and farmer’s market). He oversaw system upgrades for radiology services (Cardiac Cath & Breast biopsy lab, MRI, and CAT scan).
    Dr. Imafidon has been an active member of the American College of Healthcare Executives (ACHE) and the Healthcare Leaders of New York (HLNY) since 2013. His contributions include serving on the ACHE Membership and Giving Committee, which have helped grow ACHE's membership to over 50,000 and raise over $4 million for the Foundation of ACHE's Fund for Healthcare Leadership. He also serves on several community boards, showcasing his commitment to healthcare and the community.
    Dr. Imafidon’s commitment to professional development is evident through his educational achievements, which include a Doctor of Physical Therapy (DPT) degree from the New York Institute of Technology, a BS from Fordham University, and an MBA from Iona University. He also holds certifications as a licensed Nursing Home Administrator (NHA) and Project Management Professional (PMP) and is a Fellow of the American College of Healthcare Executives (FACHE).

  • Michael Tsang

    Board Member-at-Large, All Territories

    Michael has worked in healthcare for nearly 2 decades, 18 of which have been with NYU Langone Health. Michael has held a variety of roles within NYULH, from a rehabilitation social worker, administrative fellow, perioperative business manager, and now to his current role as a Regional Director of Operations for Rusk Rehabilitation. Michael manages a broad spectrum of responsibilities for over 20 ambulatory departments, and 3 inpatient units encompassing over 500 FTEs. His primary tasks include overseeing business development as it relates to expansion of therapy services, with access to care at the forefront of any executive proposal. Michael attributes much of his success to his days as a Social Worker, which has contributed immensely to his patient centered care approach when he was providing clinical care, and now as he operates at a system level.

    Michael is a proud member of ACHE/HLNY for over 12 years, presenting at ACHE Congress, serving as a mentor under the Leadership Mentor Network for over 5 years, as well as previously serving on the HLNY Membership Committee. He is also board certified with ACHE as well as being a fellow with HFMA. Additionally, Michael has served as a mentor for the University at Buffalo School of Social Work for over 8 years. Its been his greatest professional joy in having the privilege to walk alongside others, paying forward the valuable mentorship that he has benefitted from throughout his own professional journey.

We would like to acknowledge our past presidents for their service to the HLNY organization.

HLNY:
Past Presidents 2002 to present

Carle Marie-Memnon, FACHE, 2024
Alyeah E. Ramjit, 2023
Andy Wuertele, FACHE, 2022
Sam Lin, FACHE, 2021
Nicholas Bilas, 2020
Allison Roditi, FACHE, 2019
Timothy Gorton, FACHE, 2018
Paige Dworak, FACHE, 2017
Stephanie Meier, FACHE, 2016
Jason Tenzer, MPH, FACHE, 2015
Alison B. Flynn, CMRP, FACHE, 2014
John Prins, RN, FACHE, 2013
Maureen Doran, FACHE, 2012
Chantal C. Volel-Torres, 2010-2011
Paul Maguire, FACHE, 2009-2010
Deborah Groner D’Agostino, FACHE, 2008-2009
MaryAnn Brown, FACHE, 2007-2008
James Y. Lee, FACHE 2004-2006
Adam K. Weinstein, FACHE 2002-2004

MHAA:
Past Presidents 1969-2006+
Marie J. Gregoire, FACHE, 2005-2006
Erica J. Gilbert, 2004-2005
John Mamangakis, FACHE,2003-2004
James Y. Lee, FACHE, 2002-2003
Adam K. Weinstein, FACHE, 2001-2002
Susan Browning, FACHE, 2000-2001
Solomon A. Torres, FACHE,1999-2000
Jeffrey A. Tiesi, FACHE, 1998-1999
Susan Fox, 1997-1998
Todd S. Greenberg, FACHE, 1996-1997
John P. Sganga, FACHE, 1995-1996
Albert J. Esposito, FACHE, 1994-1995
Fred S. Sganga, FACHE, 1993-1994
Kevin M. Spiegel, FACHE, 1992-1993
Barbara M. Shupak, 1991-1992
Joseph Marotta, FACHE, 1990-1991
Lee H. Perlman, FACHE, 1989-1990
Gail Donovan, 1988-1989
Robert V. Levine, FACHE, 1987-1988
David Jaffe, 1986-1987
Patricia Loubeau, 1985-1986
Joseph S. Orlando, FACHE, 1984-1985
Susan A. Zuckerman-Yubas, 1983-1984
John Cecconi, FACHE, 1982-1983
Howard H. Levine, FACHE, 1980-1982
Gary S. Horan, FACHE, 1979-1980
Douglas Landy, FACHE, 1978-1979
John P. Ferguson, FACHE, 1977-1978
John P. Davanzo, FACHE,  1976-1977
John Fales, 1975-1976
Gary H. Ross, FACHE, 1974-1975
Terrance M. O’Brien, 1973-1974
Mark J. Mundy, FACHE, 1972-1973
Cary Leptuck, FACHE, 1970-1972
John F. Reilly, FACHE, 1969-1970

HVHEA:
Past Presidents 1992-2007

Steven Schoener, 2005-2007
Coy Smith, 2003-2005
Douglas Landy, FACHE, 2001-2003
Deborah Groner D’Agostino, FACHE, 1999-2001
Bruno U. Nardone, CHE, 1997-1999
John Cecconi, FACHE, 1995-1997
Remo Obertello, 1992-1995


WHN:
Past Presidents 1992-2007

Maureen Doran, FACHE, 2006-2007
Mary Ann Brown, FACHE, 2003-2006
LeeAnn Marcus, 2001-2003
Carol Wilkinson, MD, 1999-2001
Cheryl Gainer,1996-1999
Tibisay Guzman, 1994-1996
Heidi Weintraub and Kristen Johnson, 1993-1994
Ernestine Pantel, Dr. PH, 1992-1993

Diversity & Inclusion

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The Healthcare Leaders of New York embraces diversity within the healthcare management field and recognizes that priority as both an ethical and business imperative.

The Healthcare Leaders of New York values diversity and initiatives that promote diversity because they can improve the quality of the organization’s workforce. The Healthcare Leaders of New York also values and actively promotes diversity in its leaders and members because diverse participation can serve as a catalyst for improved decision making, increased productivity, and a competitive advantage.

Further, the Healthcare Leaders of New York works to foster an inclusive environment that recognizes the contributions and supports the advancement of all, regardless of race, ethnicity, national origin, gender, religion, age, marital status, sexual orientation, gender identity or disability because an inclusive environment can enhance the quality of healthcare, improve hospital/community relations, and positively affect the health status of society. This priority is reflected in the chapter’s various activities and initiatives.

The Healthcare Leaders of New York is committed to promoting diversity and inclusion through the following activities:

 

Within the Chapter organization:

  • The Chapter Committee on Diversity and Inclusion is charged with conducting an annual self-assessment of the chapter’s diversity and inclusion practices and proposing new practices and programs.
  • The Chapter Nominating Committee is charged with assuring that the chapter board of directors is broadly representative of the chapter membership and with maintaining a diverse and inclusive chapter leadership.
  • The Chapter updated its by-laws to include Diversity and has formed a Diversity Committee.
  • The Chapter added Diversity as an agenda item to every board meeting.

Within the healthcare management field:

  • Conduct at least one chapter educational event offering face-to-face ACHE continuing education credits on the topic of diversity and inclusion.
  • Publish at least one chapter newsletter article on diversity and inclusion each year.
  • Develop and maintain a caucus organization within the chapter in collaboration with the Asian Healthcare Leaders Association and/or the National Association of Latino Healthcare Executives.
  • Develop and maintain a formal, written collaboration with the National Association of Health Service Executives.