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.

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 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 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.

Recently graduating with a dual master's degree in Business Administration and Public Health, with a concentration in health policy and management from Stony Brook University, Mmutaka brings a wealth of knowledge and dedication to her work in Healthcare Administration. Mmutaka also holds a Bachelor's degree in Public Health from the State University of New York Albany, laying a strong foundation for her endeavors.

Mmutaka's dedication to academic excellence and commitment to public health has been recognized through several 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 2023 Scholarship Award, and the HLNY 2023 Achievement Award of Distinction Scholarship.

Since 2021, Mmutaka has been an active member of HLNY, initially joining as a student member and then volunteering within the DEI committee before now serving as the Co-Chair of the Marketing Committee.

Post-graduation, Mmutaka will join Northwell Health as an Administrative Fellow. This role will provide her with a unique opportunity for executive development, encompassing departmental rotations, problem-solving projects, and participation in managerial functions across various organizational settings within Northwell Health.

Beyond her professional pursuits, Mmutaka finds balance in her life through activities such as going to the gym, exploring all things beauty related, and spending time with family and friends.

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 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 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).

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 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 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 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.

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 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 is a board-certified healthcare leader with 13 years of nursing experience, including 10 in leadership roles, managing diverse clinical areas and service lines. His career began at Long Island Jewish Medical Center as an Assistant Nurse Manager on a stroke unit, later advancing to roles at Lenox Hill Hospital and as a Sepsis Quality Specialist, where he drove performance improvement initiatives. Frankie then served as Assistant Director of Nursing at LIJ Valley Stream and Nurse Administrator at NYP Cornell, overseeing hospital-wide operations and ensuring quality care.

In the U.S. Navy Reserve, Frankie was deployed to Guantanamo Bay, Cuba, providing care to detainees. Returning stateside, he became Deputy Chief Nursing Officer at NYCHHC/Lincoln, overseeing med/surg, critical care, maternal child health, and behavioral health nursing. Later, as Director of Ambulatory Care Services, he managed operations across 76 practices, radiology, dialysis, and oncology. Frankie currently works as a per diem Nurse Administrator while seeking a leadership role to leverage his expertise in nursing and healthcare management.

Frankie holds multiple degrees, including an MBA in strategic healthcare management, a Master’s in Nursing, and is pursuing a PhD at Seton Hall University. He holds seven specialty certifications and is a Fellow of the American College of Healthcare Executives. Active in professional organizations, Frankie serves on several boards, including advisory board member for Hofstra University's School of Nursing and Physician Assistant Studies. Recently selected for promotion to Navy Reserve Lieutenant Commander, Frankie continues his commitment to advancing nursing and fostering inclusive leadership.

Alyeah E. Ramjit, MS, MHA, current serves as a System Vice President with One Brooklyn Health (OBH).
OBH is a-2 hospital system, located in Brooklyn, NY serving a population of roughly 1 million patients.
Ms. Ramjit currently oversees the Departments of Cardiology, Orthopedics & Surgery where she is the
operational and administrative lead with specific oversight on fiscal, human resource and strategic
operations. Prior Ms. Ramjit held similar responsibilities for the Department of Medicine across OBH.
In addition to the above, Ms. Ramjit’s prior experience as Chief of Staff at the Mount Sinai Health
System included leading key initiatives to transform organizational culture, including patient experience,
system learning and process improvement as well as overseeing initiatives within system and hospital
operations, hospital joint venture strategies and business development. Ms. Ramjit has further
experience in population health management, creating integrated networks, Medicare Part D
operations, long-term care operations and emergency medical services.
In addition to her vast experience in healthcare, Ms. Ramjit serves as a Clinical Assistant Professor with
the Master of Health Administration Program in Public Health at Stony Brook University. Ms. Ramjit also
serves on the Dean’s Advisory Board for the School of Health Sciences, the Women in Leadership Board,
Secretary of the Alumni Organization and as an Executive-in-Residence for the Master of Health
Administration Program at Hofstra University.
Her additional volunteer activities include having served Past President with Healthcare Leaders of New
York, member of the American College of Healthcare Executives (ACHE). She is a recipient of the ACHE
2018 Early Career Healthcare Executive Regent’s Award and the 2020 ACHE Recognition Award for
Chapter Service. Ms. Ramjit was named by Crain’s New York on their Most Notable in Healthcare
2021 list, been featured as a guest on Becker’s Healthcare Podcast and is an Alum of the 2022 Young
Executive Leadership Program hosted by the International Hospital Federation. Furthermore, Ms. Ramjit
has been honored by Schneps Media on their 2025 Power List and 2025 Healthcare Heros List.
Ms. Ramjit is a two-time graduate of New York Institute of Technology holding a Bachelor of Science in
Life Sciences/Biology and a Master of Science in Clinical Nutrition. She also holds a Master of Health
Administration with Distinction from Hofstra University as well as Certificates in Executive Healthcare
Leadership and Healthcare Change Leadership from Cornell University.

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’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.

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 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.