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Leonid Poretsky, MD
Acting Chair, Department of Medicine, Mount Sinai Beth Israel; Chief, Division of Endocrinology and Metabolism, Director, Gerald J. Friedman Diabetes Institute, Mount Sinai Beth Israel
Photo of Leonid Poretsky, MD
Affiliated with:
Mount Sinai Beth Israel
Medical SpecialtyEndocrinology & Metabolism
Clinical Interests
Polycystic Ovary Syndrome (PCOS)
Insurance See Insurance Providers
Board CertificationsAmerican Board of Internal Medicine, 1983
American Board of Endocrinology and Metabolism, 1985
Medical SchoolFirst Medical Institute, Leningrad, Russia, 1977
Residency TrainingMedicine, Coney Island Hospital, Brooklyn, NY, 1980‑1983
FellowshipResearch Fellow in Medicine, Harvard Medical School, Boston, MA, 1983‑1985
Endocrinology, Beth Israel Hospital, Boston, MA, 1983‑1985
From the doctorDr. Leonid Porestsky graduated cum laude from the First Medical Institute in Leningrad, Russia. He completed a residency in Internal Medicine at Coney Island Hospital within the State University of New York, Downstate Medical Center System, and a fellowship in Endocrinology and Metabolism at Boston's Beth Israel and Harvard Medical School. He is board-certified in Internal Medicine and in Endocrinology. His research interests, supported throughout his career by National Institutes of Health (NIH) as well as other grants, include the mechanisms of interactions between insulin and insulin-like growth factors with their receptors, particularly, in the human ovary; endocrine manifestations of AIDS; and clinical outcome studies in diabetes.

Dr. Poretsky is the author of more than 75 publications in the leading endocrine journals. He is also the editor of the new 780-page textbook of diabetes entitled "Principles of Diabetes Mellitus" (Kluwer Academic Publishers, Boston, MA, 2002; second edition—Springer, New York 2010). His research studies are presented regularly at the annual Endocrine Society meetings and the annual American Diabetes Association (ADA) meetings. Dr. Poretsky has served as a manuscript reviewer for numerous journals, including the “New England Journal of Medicine”, the “Journal of Clinical Endocrinology and Metabolism”, the “International Journal of Obesity, Transplantation”, “Metabolism” and “Fertility and Sterility”. He is currently a member of the editorial boards of the “Journal of Clinical Endocrinology and Metabolism” and “Journal of Diabetes”. He is a member of the Endocrine Society and the ADA, and is founding member and a member of the Board of Directors of the Metropolitan Diabetes Society.

Dr. Poretsky is frequently named to the list of top doctors and most recently appeared in the 2011 edition of "Top Doctors: New York Metro Area."
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