Speaker Profile
Jonathan D. Leffert

Jonathan D. Leffert MD, FACP, FACE, ECNU

Endocrinology, Metabolism and Diabetes
Dallas, Texas, United States of America

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Dr. Jonathan Leffert was born in Rochester, NY, and moved to St. Paul, MN, as a teenager. He went to Brown University and graduated in 1979 with an AB in biology. He received his medical degree from the University of Minnesota Medical School in 1983 and completed his internship and residency in internal medicine at UT Southwestern affiliated hospitals (Parkland Memorial Hospital and the Dallas VAMC) in 1986. Following his residency, Dr. Leffert was awarded the AHA Bugher Fellowship in Molecular Biology and began work on cholesterol metabolism in the laboratory of Joseph Goldstein, MD, and Michael Brown, MD, under the supervision of Kenneth Luskey, MD. The Touchstone Center for Diabetes Research at UT Southwestern under the direction of Roger Unger, MD, was forming, and Drs. Luskey and Leffert moved to this laboratory and began work on amylin. In 1988, Dr. Leffert cloned the cDNA for rat amylin and began studying the physiological basis of this new hormone. In 1989, he was awarded a NIH Physician-Scientist grant based upon his work on amylin. Simultaneously, he pursued a clinical fellowship in endocrinology and metabolism at UT Southwestern, finishing in 1991.

Dr. Leffert entered solo private practice at Presbyterian Hospital of Dallas in 1991 and then formed North Texas Endocrine Center with his partner, Peter Bressler, MD, in 2007. He currently serves as Managing Partner of this practice. He is active in the teaching program at Presbyterian Hospital, participating in clinical and grand rounds, and also at UT Southwestern, where he is an Assistant Clinical Professor in the Department of Internal Medicine. He joined AACE in 1993 and became a fellow in 1995. Dr. Leffert was an Advisor to the Board in 2004 and 2005 and was elected to his first of two Board terms in 2006.

Dr. Leffert has served on several AACE Committees including the Finance, Nominating, Public Relations, Annual Meeting Program, Awards, and CAP Steering Committees. He has chaired the Task Forces on Relationships with other Medical Societies, ACOs, New Payment Models, and Legislative, AACEPAC, Regulatory, and the Socioeconomics and Member Advocacy Committees. He is currently the Alternate Delegate to the AMA House of Delegates for AACE. He was elected Secretary of AACE in 2013 and serves as Chair of the Council on Clinical Practice and Research.
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