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Maimonides Leadership Profiles

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Kenneth D. Gibbs, President & Chief Executive Officer

Kenneth Gibbs is President and CEO of Maimonides Medical Center. Mr. Gibbs joined the Board of Trustees at Maimonides Medical Center in May 2013, becoming the Chair of the Strategic Planning Committee and, a year later by acclamation, assumed the Chairmanship of the Board. He led Maimonides through a complex process of selecting North Shore-LIJ as the right partner for the institution, working with senior leadership at both institutions as well as a broad spectrum of internal and external stakeholders. 

Mr. Gibbs has spent more than 30 years in public finance, during which time he has led numerous multi-million dollar financing deals to support essential public programs and facilities in cities and states around the country, including: revitalized urban downtown areas, upgraded schools, clean drinking water programs, airport upgrades, and the overall creation of thousands of jobs. 

For the previous six years, Mr. Gibbs served as President of the Municipal Securities Group at Jefferies, LLC in New York City. He stepped down from this position before becoming President and CEO of Maimonides. Prior to his role at Jefferies, he was the Chief Executive Officer of DEPFA First Albany Securities, the Director of Public Finance at First Albany Capital, and held investment banking positions at Lazard Freres & Co., Credit Suisse First Boston, and Kidder Peabody.

Mr. Gibbs has applied his expertise and relationships in the public finance sector to advance the work of non-profit and public policy organizations. Since 1991, he has been a Board Trustee of the Citizens Budget Commission and served as its Chair from 2010-2014. Born and raised in New York City, Mr. Gibbs is a graduate of Harvard College and lives in Manhattan with his wife, Cathy Cramer. They have four children.




Robert Naldi

Executive Vice President, Finance & Chief Financial Officer 
Robert Naldi is the Medical Center's Executive Vice President and Chief Financial Officer. Prior to joining the Medical Center he held the position of Senior Vice President, Finance of St. Luke's-Roosevelt Medical Center and Beth Israel Medical Center. Mr. Naldi received his BS degree in Accounting from Lehman College of the City University of New York and his Master of Business Administration degree from Fordham University Graduate School of Business. "Maimonides is a thriving and growth-oriented facility which is driven by community needs. The folks here know the agenda of what we are trying to accomplish and are supportive of one another."

Samuel Kopel, MD

Chief Medical Officer & Patient Safety Officer
Samuel Kopel, MD graduated from Brooklyn College and received his MD from the University of Bologna, Italy. He completed an internship, residencies, and a fellowship in Clinical Hematology at the Jewish Hospital and Medical Center. He also completed fellowships in Research Hematology and Oncology at Mount Sinai Hospital in New York. Dr. Kopel became the Associate Director of the Division of Hematology/Oncology at Maimonides in 1978. In 1995 Dr. Kopel assumed the position of Medical Director at Maimonides. He is board certified in Hematology and Medical Oncology.

David I. Cohen, MD

Executive Vice President, Clinical Affairs & Affiliations; Chair, Department of Population Health
David Cohen, MD received his undergraduate and medical degrees at the University of Pennsylvania. He also received a Masters in Epidemiology and Health from McGill University where he was a Robert Wood Johnson Foundation Clinical Scholar. Prior to joining the staff at Maimonides, Dr. Cohen served as Vice President for Medical Operations at the New York City Health and Hospitals Corporation and as Medical Director at Bellevue Hospital Center. He has held academic appointments at Case Western Reserve University, New York University, and The Mount Sinai School of Medicine.

Douglas Jablon

Special Assistant to President & Executive Vice President, Patient Relations
Douglas H. Jablon is affectionately known as "Mr. Maimonides." The Patient Relations Department focuses on the social, economic and cultural needs of patients and their families with compassion and sensitivity, and this knowledge is shared with hospital administration in an effort to enhance the quality of care provided by the Medical Center. Mr. Jablon also oversees the activities of over 1,300 volunteers and countless volunteer programs from the diverse communities surrounding the Medical Center. Mr. Jablon received his Masters Degree in Education, Guidance and Counseling from Long Island University.

Joyce A. Leahy, Esq.

Executive Senior Vice President, Legal Affairs & General Counsel
Joyce A. Leahy Esq. also serves as Assistant Secretary to the Board of Trustees. She is the Privacy Officer for the Medical Center. Before joining Maimonides, Ms. Leahy was an associate with the law firm of De Forest & Duer, New York, New York. She received her degrees from Harvard University and New York University School of Law and is a member of the Bar of the states of New York and Massachusetts.

Marcel Biberfeld, DSW

DSW, Executive Officer, Constituent & Donor Services
Marcel Biberfeld DSW, is Executive Officer of Constituent & Donor Services. He also served as Director of the Maimonides Community Mental Health Center and Administrator of the Outpatient Department. Prior to joining the Medical Center, Dr. Biberfeld's positions included being the Director of Social Work at Sheepshead Nursing Home and Founding Director of The Jewish Family Services, Inc. of Boro Park. In addition, he is a member of the Board of Directors at Ohel Children's and Family Services and Bikur Cholim/Guardians of the Sick of Boro Park. A graduate of Brooklyn College and Yeshiva University, Dr. Biberfeld is also the Vice President of Chaplaincy Services at Maimonides.

Walter J. Fahey, MBA

Senior Vice President, Management Information Systems & Chief Information Officer
Walter J. Fahey has helped Maimonides win accolades for its Information Technology in healthcare, including recognition for successful system implementations and compliance with the Leapfrog Group standards.  Mr. Fahey is a member of the College of Healthcare Information Management Executives (CHIME) and the Healthcare Information and Management Systems Society (HIMSS).

Derek D. Goins

Senior Vice President, Operations, Facilities & Support Services
Derek D. Goins has more than 30 years of experience at Maimonides, serving in various capacities since joining the staff in February of 1972. In his current position, he is responsible for the operation of all facilities and support services, which include 14 different departments, with combined annual budgets in excess of $35 million (operating and personnel). In addition, he is also responsible for all the construction and renovations in the Medical Center and its properties and the annual budgets associated with capital improvements. As Vice President of MMC Management, Mr. Goins is responsible for the management of all the real estate holdings of the Medical Center. Mr. Goins attended St. Joseph's College for Hospital Administration and holds a RAM (Registered Apartment Manager) from New York University.

Karen Nelson, MD, MPH

Senior Vice President, Integrated Delivery Systems
Karen Nelson, MD, MPH, will direct our efforts to create a Health Home in southern Brooklyn for very sick and high risk Medicaid patients. She was the CEO and Medical Director of the Union Health Center from 1999 to 2012. Founded by the ILGWU at the turn of the 20th Century, the Health Center is a provider of primary and specialty care for 10,000 mostly immigrant and low-income active and retired union members. From 1996 to 1999, Karen was Vice Chair of Medicine at Maimonides where she played a key role in expanding our ambulatory care network and establishing a community-based training program for residents in Internal Medicine. She was Medical Director of Dorchester House Community Health Center from 1988 to 1995, a multi-service center in one of Boston's poor neighborhoods.

Eric Scalettar

Senior Vice President, Planning
Eric Scalettar has worked in the field of hospital administration for the past 25 years. In his role as Maimonides chief planning officer, Mr. Scalettar has had an interest in the formulation of the corporation's strategic plan and facility master plan, planning and implementation of major construction projects, assessment and structuring of medical center operations, developing physician networks, payer negotiations, capital and operations budgeting, interfacing with regulatory and governmental agencies and other external matters and affairs. Mr. Scalettar represents Maimonides on the Boards of HealthFirst, Inc., and Briarwoods Insurance Company, Ltd., as well as a variety of external industry committees and forums. Mr. Scalettar received a BA from Harpur College, SUNY Binghamton, and an MPH from Yale School of Medicine, Department of Epidemiology and Public Health.

Thomas Smith, DNP, RN, NEA-BC

Chief Nursing Officer & Senior Vice President
In his role as Chief Nursing Officer, Thomas Smith, DNP, RN, NEA-BC is responsible for nursing practice and patient care delivery across the continuum of care at Maimonides. From 2006 to 2010, Tom was Chief Nursing Officer and Senior Vice President at Cambridge Health Alliance in Cambridge, Massachusetts. From 1996 to 2005, he was Senior Vice President for Nursing at The Mount Sinai Hospital in New York City, the first full-service hospital in Manhattan to receive the Magnet Award for nursing excellence. Tom's professional background as a clinician, educator and leader of nursing practice includes positions at Massachusetts General Hospital, Boston City Hospital, and University of Massachusetts/Boston where he taught undergraduate adult medical-surgical nursing and health assessment. He has served as a Commissioner for the Commission on Collegiate Nursing Education (CCNE) of the American Association of Colleges of Nursing and is an active member of the American Organization of Nurse Executives.