Dr. Bass attended Duke University for college and medical school, and received residency training in internal medicine and an MPH degree from the University of Pittsburgh. He completed a fellowship in general internal medicine at Johns Hopkins, and joined the Johns Hopkins faculty in 1989. His strongest research interests are in evidence-based medicine and assessment of the effectiveness, safety, and costs of medical and surgical management strategies. He has been the Director of the Johns Hopkins Evidence-based Practice Center since 2001. His teaching activities focus on medical student education at the interface between medicine and public health. He is the Director of the medical school's course on Foundations of Public Health, and Co-Director of the medical school's Scholarly Concentration in Public Health Research. He was the Director of the General Internal Medicine Fellowship at Johns Hopkins for 15 years. He served as the Editor of the Journal of General Internal Medicine for 5 years, and was the founding Editor-in-Chief of a journal dedicated to community-based participatory research called Progress in Community Health Partnerships. He has been the CEO of the Society of General Internal Medicine since 2017. He has published more than 250 peer-reviewed articles and over 50 evidence reports. He continues to have a clinical practice as a general internist.