Leadership Bios

David A. Wyman, MPA

President and CEO

David A. Wyman, MPA is the President and CEO of Gracie Square Hospital. Mr. Wyman brings close to 20 years of experience in healthcare operations and management to his role as he leads the redevelopment and revitalization of Gracie Square Hospital.

Prior to joining Gracie Square Hospital, Mr. Wyman spent 15 years in varying progressive roles at part of Continuum Health Partners in NYC. Most recently Mr. Wyman served as Vice President of Administration at the Mount Sinai Health System for both Mount Sinai Roosevelt and Mount Sinai St. Luke’s Hospitals. There he focused his expertise in the areas of operations management, finance and revenue cycle, information technology integration and implementation, quality and performance improvement and change management.

Mr. Wyman holds a Master of Public Administration, Health Policy and Management degree from New York University and a Bachelor of Science degree from the University of Florida.

Donna Anthony, M.D., Ph.D.

Chief Medical Officer

Donna T. Anthony, M.D., Ph.D. assumed the position of Chief Medical Officer at Gracie Square Hospital in January 2016 after spending over twenty years as attending psychiatrist at the Westchester Division of NewYork-Presbyterian Hospital. While at NYP-Cornell she was Program Director of the Continuum of Care for treatment of individuals with psychotic disorders.  She focused her clinical, academic and teaching efforts on the inpatient treatment of schizophrenia and bipolar disorders.  She expanded her administrative role as Unit Chief of the Acute Psychotic Disorders Unit to the overall Continuum of Care which included Service Chief for the Second Chance Inpatient Unit and Program Director for the outpatient psychotic disorders clinic and continuing day treatment program with recent development of a partial hospitalization track.  At Cornell Westchester Division she received Physician of the Year, Advocate of Pharmacy, and resident and medical student teaching awards.  As a member of the Cornell Physicians Organization, she maintained an outpatient practice in general adult psychiatry.

Dr. Anthony obtained a B.S. in Molecular Biophysics and Biochemistry at Yale University.  She completed a combined M.D. and Ph.D. program at Cornell Medical College and The Rockefeller University where she studied Developmental Neurobiology.  She did residency training in Psychiatry as well as a Fellowship in Schizophrenia Research at Columbia Presbyterian Medical Center and The New York State Psychiatric Institute before assuming her position at Cornell. 

Dr. Anthony is a Clinical Associate Professor of Psychiatry of the Weill Cornell Medical College and a Fellow of the American Psychiatric Association.  She continues to practice general adult psychiatry in part time private practice in White Plains and Manhattan. 

Margaret Mancuso, MA, Ed.D

Chief Administrative Officer

Margaret Mancuso, MA, Ed.D, Chief Administrative Officer of Gracie Square Hospital, is responsible for aligning daily operations to support the hospital’s strategic vision of delivering patient centered care. Prior to joining Gracie Square Hospital, Ms. Mancuso held progressive leadership positions in several health care organizations including Memorial Sloan Kettering and Continuum Health Partners in New York City. Her prior experience included oversite of operations in several Connecticut hospitals where she served as the Clients Rights Officer for Behavioral Health. As an effective leader, she has developed cohesive and highly productive teams and facilitated innovative solutions to critical challenges in the areas of the patient access, patient rights, and advocacy. Ms. Mancuso has been an Academic Preceptor at the University of Connecticut School Of Medicine where she received the Curriculum Management Committee Teaching Award. She participated in the Advocacy Institute Fellowship, Washington DC., and served on the Connecticut Public Health Association’s Board of Directors. Ms. Mancuso also functioned as a Crime Victims Treatment Center (NYC) Advocate Volunteer.

Michael Radosta, MA, MS, RN, NEA-BC, FACHE

Chief Nursing and Quality Officer

Michael Radosta, MA, MS, RN, NEA-BC, FACHE, Chief Nursing and Quality Officer of Gracie Square Hospital, is responsible for achieving the patient-centered strategic vision of the organization. Prior to joining Gracie Square Hospital, Mr. Radosta spent over 10 years in varying progressive clinical and administrative roles at NewYork-Presbyterian Hospital. Most recently, Mr. Radosta was the Director of Nursing and Quality for Payne Whitney Manhattan. Mr. Radosta has been an Adjunct Faculty member at Pace University’s Lienhard School of Nursing since 2006. Mr. Radosta holds a Bachelor of Arts in Psychology from Fordham University and a Bachelor of Science in Nursing from The College of New Rochelle. Additionally, he earned a Master of Arts in General Applied Psychology from Iona College and a Master of Science in Health Care Management from New York University’s Wagner program. Mr. Radosta is board certified by the American Nurses Credentialing Center as an Advanced Nurse Executive and is a member of the American College of Healthcare Executives.

Natasha Bowman, JD, SPHR

Chief Human Resources Officer

Natasha Bowman, JD, SPHR brings over 15 years of human resources and legal experience to Gracie Square Hospital. Prior to joining Gracie Square Hospital, Mrs. Bowman held leadership human resources positions in fortune 500 companies and healthcare organizations including both Walmart Stores, Inc. and Northwell Health. In addition to her leadership roles, Mrs. Bowman is a published author, an Adjunct Professor at Manhattan College and the Jack Welch Management Institute and formerly sat on the academic faculty at Georgetown University and Fordham University. She holds a Bachelor’s degree from Troy University and a Juris Doctorate degree from the University of Arkansas. She has held the Senior Professional in Human Resources designation since 2009.


Philip J. Wilner, MD, MBA

Chairman, Gracie Square Hospital

Senior Vice President and Chief Operating Officer, NYP/Westchester Division

Philip J. Wilner, MD, MBA, is Senior Vice President and Chief Operating Officer, NewYork-Presbyterian/Westchester Division. In this role, he oversees Behavioral Health services across all Hospital campuses. Dr. Wilner is also Executive Vice Chair of the Department of Psychiatry and Professor of Clinical Psychiatry at Weill Cornell Medical College, and serves on numerous Hospital and Medical College Boards and Committees. He is Chairman of the Board of Gracie Square Hospital. He is a Fellow of the American Psychiatric Association and member of the New York Academy of Medicine and the New York Psychiatric Society. Dr. Wilner joined NewYork – Presbyterian as a House Officer in 1983 and was the recipient of a Readers Digest Research Fellowship in 1988, conducting studies in the biological bases of psychiatric illness. He obtained his undergraduate degree summa cum laude from Columbia College, his MD from the College of Physicians and Surgeons at Columbia University, and his MBA in Healthcare Administration and Policy from Zicklin Business School at Baruch College.