Bachelor of science in electrical engineering from Cornell University, 1977; doctorate of medicine from Cornell University Medical College, 1981; Assistant Professor of bioengineering, University of Texas Southwestern; PSP candidate for STS-58; unsuccessful application for NASA astronaut groups 13 and 16; hobbies: Camping, fishing, hiking and avid reader of history; he served as a surgeon at Ambulatory Care Clinic in Dallas, Texas; currently professor of medicine and an adjunct professor of engineering, Dartmouth; in 2008 he has announced his candidacy for the US senate (unsuccessful).