Background
Gregory, Daniel Hayes was born on December 18, 1933 in Waterton, New York, United States.
Gregory, Daniel Hayes was born on December 18, 1933 in Waterton, New York, United States.
AB, Hamilton College, 1957; Doctor of Medicine, University of Virginia, 1962.
Intern, Medical College of Virginia, Richmond, 1962-1963;
associate chairman to department, Medical College of Virginia, Richmond, 1979;
resident in internal medicine, University of Minnesota Veterans Administration Hospital., Minneapolis, 1963-1966;
fellow in gastroenterolgy, University of Minnesota Veterans Administration Hospital., Minneapolis, 1966-1968;
chief of medicine, Veterans Administration Hospital., Richmond, 1979;
associate, Allegheny Gastro Associations, Pittsburgh, since 1979. Clinical associate professor of University Pittsburgh, since 1978. Associate professor medicine, Medical College Pennsylvania, 1981-1985.
Advisory faculty Merck, Sharp & Dohme, since 1982. Program director GI fellowship Allegheny General Hospital, Pittsburgh, since 1980.
Member medical advisory American Liver Foundation, Pittsburgh, since 1985. Member American Association Study Liver Disease, American Gastroenterology Association, American College Gastroenterology, American Men. Science, American Society Gastrointestinal Endoscopy, Allegheny County Medical Society (president since 1989, Chairman of the Board 1990), Pittsburgh Gut Club. M C.