A Magna Cum Laude graduate of Elizabethtown College, Dr Kerr received His medical degree from the University of Pittsburgh. After completing an internship and residency in Internal Medicine at the University of Pittsburgh Hospitals, he completed a fellowship at the University of Minnesota. Dr. Kerr has held faculty positions at the University of Minnesota and the University of Texas- San Antonio.

Dr. Kerr has been involved in laboratory and clinical research for more than twenty-five years and has been invited to present the results of his research in both the United States and Europe. He is the author of numerous publications and has served as president of the Texas Division of the American Cancer Society, president of the Texas Society of Medical Oncology, and chief of medical staff at two hospitals in Austin in addition to serving as chairman and member of several state and national committees. Dr. Kerr is a member of the American Society of Clinical Oncology, the American Society of Hematology, and the European Society of Medical Oncology. Board certified in Internal Medicine and Hematology, Dr. Kerr is in practice with the Southwest Regional Cancer Center.