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.