- M.D., Faculty of Medicine, Chiang Mai University, 1970.
- Rotating Internship Central Hospital, Bangkok, Thailand, 1970-1971.
- Rotating Internship, Lutheran Hospital, St. Louis, Missouri, 1971-1972.
- Medical Resident, The Memorial Hospital, Pawtucket, Rhode Island, 1972-1973.
- General Practice Resident, Lutheran Medical Center, St. Louis, Missouri, 1973-1975.
- The American Board Eligible of Internal Medicine, 1975.