Mitchell A. Lazar, the Willard and Rhoda Ware Professor in Diabetes and Metabolic Disease and director of the Institute for Diabetes, Obesity, and Metabolism in the Perelman School of Medicine at the University of Pennsylvania, is the 2025 recipient of the George M. Kober Medal from the Association of American Physicians (AAP). Dr. Lazar received the honor in Chicago at the AAP’s annual meeting, which took place April 25-27, 2025.

The AAP, an elected society of the nation’s most distinguished physician scientists, was founded in 1885 by seven physicians, including Sir William Osler. The Kober Medal, first presented at the annual meeting in 1925, is the AAP’s highest honor, given in recognition of an AAP member whose lifetime efforts have had an enormous impact on the field of internal medicine (or the specific member’s discipline) through the scientific discipline they have brought to the field and the many outstanding scientists that they have trained. Past Penn faculty to receive the Kober Medal include former deans Arthur H. Rubenstein (2012) and William N. Kelley (2005).

Dr. Lazar has made fundamental discoveries uncovering connections between hormone receptors, circadian rhythms, and the regulation of gene expression in normal physiology as well as metabolic diseases including diabetes and obesity. He has also been a leader in academic medicine while at Penn, serving as chief of the Penn division of endocrinology, diabetes, and metabolism from 1996-2019 and as founding director of the Institute for Diabetes, Obesity, and Metabolism. Nationally, Dr. Lazar has served on the Board of Scientific Councilors of the National Institute of Diabetes and Digestive and Kidney Diseases, the Council of the American Society for Clinical Investigation, and the Council of the AAP, where he also served as president in 2021.

“I am deeply honored and humbled to receive the prestigious George M. Kober Medal from the AAP,” said Dr. Lazar. “This recognition is not just a personal achievement but a testament to the dedication and collaborative efforts of my colleagues and trainees over the years. It is a privilege to be acknowledged for our work in unraveling the complexities of metabolic diseases as well as our contributions to academic medicine.”