Lee M. Kaplan

Lee M. Kaplan, MD, PhD, FTOS

Obesity, Metabolism, and Nutrition Institute
Massachusetts General Hospital

Email: lmkaplan@partners.org

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Lee M. Kaplan, MD, PhD, is director of the Obesity, Metabolism, and Nutrition Institute and founding director of the Weight Center at Massachusetts General Hospital (MGH), and associate professor of medicine at Harvard Medical School (HMS). His research focuses on the role of the gastrointestinal tract and gut microbiota in the regulation of energy balance and metabolic function, including the mechanism of action of bariatric and metabolic surgery, as well as the genetic determinants of obesity and its response to therapy.

Dr. Kaplan is director of the subspecialty fellowship program in Obesity Medicine and Nutrition at MGH, director of the Blackburn Course in Obesity Medicine at Harvard Medical School, chair of the U.S. Obesity Medicine Fellowship Council, and associate director of the National Institutes of Health (NIH)-sponsored Nutrition and Obesity Research Center at Harvard. He has served in many professional leadership roles and is a past president of The Obesity Society.

Dr. Kaplan has served in several advisory roles to the U.S. National Institutes of Health, including most recently as a member of the Advisory Council of the National Institute of Diabetes and Digestive and Kidney Diseases, member of the Clinical Obesity Research Panel, and member of the Center for Scientific Metabolism Review Advisory Panel.  He has served on the editorial boards of several scientific and medical journals and is a member of several governmental, foundation and corporate scientific advisory boards.

Dr. Kaplan graduated from Harvard University and received his MD and PhD in molecular biology from the Albert Einstein College of Medicine. He completed an internship and residency in internal medicine and a fellowship in gastroenterology at MGH and HMS and a fellowship in genetics at Brigham and Women’s Hospital. He is a board-certified specialist in Internal Medicine, Gastroenterology and Obesity Medicine and has authored more than 200 peer-reviewed medical and scientific papers.