Dr. Thien Do attended medical school at the George Washington University School of Medicine in Washington, DC and completed his internal medicine residency at William Beaumont Army Medical Center in Texas. He completed his cardiology fellowship with the U.S. Army at Brooke Army Medical Center in San Antonio, Texas and went on to serve as a staff cardiologist at Walter Reed Army Medical Center in Washington, DC and at Malcolm Grow Hospital with Andrews Air Force Base with the rank of Major.
While at Malcolm Grow Hospital, he served as the director of the Coronary Care Unit, the Intermediate Care Unit, Pacemaker Implantation Service and as the director of the Non-invasive Lab. He also served as an assistant teaching professor at the Uniform Services University of the Health Sciences as well as medical consultant for the NASA Mishaps Investigation Board. He holds a fellow status at the American College of Cardiology (FACC). He is an active staff member at the INOVA Fairfax Hospital.
Dr. Thien Do also serves as director of the World Health Ambassador program which sends medical and dental teams abroad to treat residents in underserved countries.