BENJAMIN CARSON. Dr. Carson has served as a Kellogg Director since 1997. He is Professor and Director of Pediatric Neurosurgery, The Johns Hopkins Medical Institutions, a position he has held since 1984, as well as Professor of Oncology, Plastic Surgery, Pediatrics and Neurosurgery at The Johns Hopkins Medical Institutions. Dr. Carson is also a director of Costco Wholesale Corporation.