Bachelor of Science in Biology, University College, Addis Ababa, Ethiopia, 1958. Doctor of Medicine, CM, McGill University, Montreal, Quebec, Canada, 1963.
Intern, Ottawa (Ontario) Civic Hospital, Canada, 1963-1964;
resident in surgery, U. B.C., Vancouver, Canada, 1964-1969;
assistant professor surgery, U. B.C., Vancouver, Canada, 1971-1975;
associate professor, U. B.C., Vancouver, Canada, 1976-1980;
fellow in gastrointestinal physiology, University of California at Los Angeles, 1972-1974;
professor of surgery, University of California at Los Angeles, 1981-1985;
chief gastrointestinal surgery, U. Washington, Seattle, 1985-1987;
professor, department chairman surgery, University of California, San Francisco, 1987-1993;
dean, University of California School Medicine, San Francisco, since 1993;
chancellor, University of California School Medicine, San Francisco, 1997-1998;
vice chancellor medical affairs, University of California School Medicine, San Francisco, since 1998. Key investigator Center for Ulcer Research and Education, University of California at Los Angeles, 1980-1990. Consultant Board Medical Quality Assurance, California, since 1981.
Board directors American Board Surgery,1990.
Fellow: American College of Surgeons, Royal College Physicians and Surgeons Canada. Member: Association Minority Academy Physicians (president 1992-1993), International Hepato-Biliary Pancreatic Association 1991-1992, American Academy Arts and Sciences, Association American Medical Colleges (chair electrical council deans), Institute Medicine, Society Black Academy Surgeons (president 1998-1999), Society Surgeons Alimentary Tract (trustee 1984-1989), American Association Endocrine Surgeons, American Gastroenterological Association (board governors since 1995), American Surgical Association (president 2001-2002).
Married Ignacia Kim Assing, May 23, 1969.