Dr. Rickels is the Willard and Rhoda Ware Professor in Diabetes and Metabolic Diseases at the University of Pennsylvania Perelman School of Medicine where Dr. Rickels serves as Director of Clinical Science in the Division of Endocrinology, Diabetes and Metabolism, Director for Translational Research in the Institute for Diabetes, Obesity & Metabolism, and Medical Director for the Pancreatic Islet Cell Transplant Program. Dr. Rickels conducts patient-oriented diabetes research that is focused on understanding the physiology of islet function and replacement and glucose counterregulation in type 1 diabetes and pancreatogenic forms of diabetes. This work has been continuously funded by the National Institutes of Health where Dr. Rickels has served as chair for the metabolics study subcommittee for the NIH-sponsored Clinical Islet Transplantation Consortium and chairs the publications and presentations committee for the NIH-sponsored Collaborative Islet Transplant Registry. Dr. Rickels has served as an elected councilor for the International Pancreas and Islet Transplant Association, as Associate Editor of Endocrine Reviews, and currently serves as Associate Editor of Diabetes Care.