Dr. Sullivan is a native of Colorado and completed his dental training at Baylor College of Dentistry in 1983. He entered private dental practice for one year before starting oral and maxillofacial surgery training at the University of Oklahoma. He completed his residency in 1988 and then undertook additional training at the West of Scotland Plastic and Oral Surgery Unit in Glasgow. Following his training in Scotland, he joined the University of Melbourne and the Royal Children's Hospital as a surgery fellow in the Plastic and Maxillofacial Surgery Unit.
In 1989, he was appointed to the faculty at the University of Michigan and the following year recruited to Hennipen County Medical Center in Minneapolis, Minnesota to organize the Maxillofacial Trauma Unit within the Department of Dentistry.
Dr. Sullivan returned to the University of Oklahoma in 1992, where he became program director and interim chair of the Department of Oral and Maxillofacial Surgery. Currently, he is Professor and Chairman of the Department of Oral and Maxillofacial Surgery. Dr. Sullivan served on the examination committee for the American Board of Oral and Maxillofacial Surgery and has been president of the Oklahoma Society of Oral and Maxillofacial Surgeons and the Southwest Society of Oral and Maxillofacial Surgeons.
His interests are in corrective jaw surgery, TMJ reconstruction and dental implant reconstruction.
He lectures nationally and internationally on these topics.