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Mary-Elizabeth Patti, M.D., F.A.C.P.


Staff Physician, Adult Diabetes; Director of the Hypoglycemia Clinic


Severe Insulin Resistance, Lipodystrophy, Hypoglycemia after Bariatric Surgery, Insulinoma


Associate Professor of Medicine, Harvard Medical School


Pennsylvania State University, 1983

Medical School

Jefferson Medical College, Philadelphia, PA, 1985


Internal Medicine, University of Pittsburgh/ Presbyterian University Hospital, Pittsburgh, PA, 1988


Endocrinology, Diabetes and Metabolism, Joint Longwood/Harvard Fellowship Program, Boston, MA, 1995


Internal Medicine and Endocrinology

Dr. Patti is Investigator/Co-Director of the Advanced Genetics and Genomics Core at Joslin Diabetes Center. Her research focuses on the molecular pathogenesis of type 2 diabetes risk; the role of intrauterine exposures and parental metabolism in influencing the health of children and disease risk in adult; and novel methods to treat hypoglycemia.

Dr. Patti received her undergraduate and medical degrees through an accelerated medical school program at Jefferson Medical College, followed by internal medicine residency at the University of Pittsburgh, and training in the joint Harvard Medical School endocrinology fellowship program. 

She has served on many volunteer leadership roles within the American Diabetes Association. She was elected to the American Society of Clinical Investigation in 2009 and to Fellowship in both the Obesity Society and American College of Physicians in 2014.