Dr. J. Larry Jameson, M.D., Ph.D., became Executive Vice President, University of Pennsylvania, Health System, and Dean, Raymond and Ruth Perelman School of Medicine. Before coming to Penn Medicine, Dr. Jameson was Dean of the Feinberg School of Medicine and Vice President of Medical Affairs at Northwestern University since 2007.

He joined Northwestern University Medical School in 1993 as Head of Endocrinology, Metabolism, and Molecular Medicine Division, a position he held for seven years.
In 2000, he was named Irving S. Cutter Medicine Professor and Medicine Department chair.

Dr. Jameson graduated from the University of North Carolina in 1981 with honour and a doctorate in biochemistry. He completed internal medicine and endocrinology clinical training at Massachusetts General Hospital, Boston. Before leaving for Northwestern University, he rose through ranks at Harvard Medical School to become an associate professor of medicine and chief of the Massachusetts General Hospital Thyroid Unit.

A prolific physicist-scientist and writer, Dr. Jameson pioneered molecular medicine in endocrinology. His research focused on the genetic basis of hormonal disorders and the author of over 350 scientific articles and chapters.
His work was published in leading peer-reviewed journals, including The New England Journal of Medicine, Nature Genetics, Science, and Clinical Investigation Journal. He is editor-in-chief of Harrison’s Principles of Internal Medicine, the world’s most widely used medical textbook, and previously served as co-editor of Jameson and DeGroot’s Endocrinology.