As a pediatric epileptologist, he cares for all children with various forms of epilepsy but has specific clinical and research interests in Dravet Syndrome, PCDH19 related epilepsy and the evaluation of children for epilepsy surgery. Dr. Sullivan is a member of the American Epilepsy Society and serves on boards including Chair of the PCDH19 Alliance Scientific Advisory Board, Chair of the Epilepsy Foundation of Northern California, and is a member of the Medical Advisory Board for the Dravet Syndrome Foundation and the Pediatric Epilepsy Research Consortium Steering Committee. He is a graduate of Union College and Albany Medical College.