About Us

Margaret A. Sullivan, MD is an independently owned medical practice specializing in Cardiovascular Diseases and Internal Medicine. Our practice is located in the heart of Manhattan's Upper East Side - easily accessible by the # 4, 5, 6 trains and several bus routes. We founded our practice in 1999 and treat adult patients 18 years and older. We see each of our patients as individuals, each with their own medical needs. We pride ourselves in listening closely to patients problems and concerns. We strive to keep each patient healthy in body, mind, and spirit.

About the Doctor

Dr. Sullivan completed a medical residency in Internal Medicine followed by a fellowship in Cardiovascular Diseases at Lenox Hill Hospital in New York City. During her residency she had the honor of serving as Chief Medical Resident. She is board certified in both Internal Medicine and Cardiovascular Diseases.

Dr. Sullivan has been on staff at Lenox Hill Hospital and Mt. Sinai Hospital for several years, and has the title of Assistant Clinical Professor of Medicine at Mt. Sinai. She welcomes new patients to the practice and looks forward to seeing you soon!