Dr. James Lewis earned a BA in Interdisciplinary Studies from the University of Virginia in 1987. He received his MD degree from the University of Pennsylvania in 1991. He completed a residency in Internal Medicine and subsequently served as Chief Medical Resident at Yale University. Following his residency, Dr. Lewis simultaneously completed a fellowship in Gastroenterology and obtained a master’s degree in Clinical Epidemiology at the University of Pennsylvania. He joined the faculty at the University of Pennsylvania in 1998 and currently is Professor of Medicine and Epidemiology, Senior Scholar at the Center for Clinical Epidemiology and Biostatistics, Senior Fellow in the Leonard Davis Institute of Health Economics, Associate Director of the Penn Inflammatory Bowel Disease Program, and Director of the Gastroenterology and Hepatology Clinical Research Program.