CMHC Faculty Members

Faculty of Tarsus Medical Group are leaders in healthcare

Lee M. Kaplan, MD, PhD

Boston, Massachusetts

Lee M. Kaplan, MD, PhD

Obesity Medicine


Dr. Lee M. Kaplan is director of the Obesity, Metabolism & Nutrition Institute and founding director of the Weight Center at Massachusetts General Hospital, and is associate professor of medicine at Harvard Medical School. Dr. Kaplan’s clinical expertise is in obesity medicine, gastroenterology and liver disease. The author of more than 150 medical and scientific papers, he has a special interest in the causes and complications of obesity and the development of new and more effective preventive strategies and therapies for this disease. His clinical research is focused on identifying clinically relevant subtypes of obesity, identifying predictors of outcome of obesity therapies, and exploring novel, combination therapies for obesity and its complications. His basic research is focused on the physiological and molecular mechanisms of gastrointestinal regulation of body weight and metabolic function, and his group has pioneered the development and use of rodent models of weight loss surgery and gastrointestinal devices to explore these mechanisms.

Education and Training

  • Genetics Fellowship, Brigham and Women's Hospital, 1989
  • Gastroenterology and Hepatology Fellowship, Massachusetts General Hospital and Harvard Medical School, 1987
  • Internal Medicine Residency, Massachusetts General Hospital and Harvard Medical School, 1984
  • Combined Medical Degree and PhD in Molecular Biology, Albert Einstein College of Medicine, 1981
  • Bachelor Degree, Harvard University, 1975

Professional Highlights

  • Associate Director, Nutrition and Obesity Research Center, National Institutes of Health
  • Director, Obesity Medicine and Nutrition subspecialty fellowship program, Massachusetts General Hospital
  • Director, Small Animal Metabolic Surgery Core Resource, National Institutes of Health
  • Member, Certification of Obesity Medicine Physicians Steering Committee, American Board of Obesity Medicine
  • Member, Bariatric Surgery Clinical Guidelines Committee, Endocrine Society
  • Director, Device Development for Obesity and Metabolic Diseases Workshop, U.S. Food and Drug Administration
  • Past Chair, Bariatric Surgery Section, The Obesity Society
  • Past Chair, Campaign to End Obesity
  • Past Chair, Obesity Task Force, American Gastroenterology Association
  • Past Vice Chair, Nutrition and Obesity Section, American Gastroenterology Association


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