- Was born in Detroit but raised in Greensboro, NC; he is the son of Korean immigrants.
- During high school, he played violin and was elected to the student council.
- Graduated at 16 and earned Greensboro’s Youth of the Year award.
- Won the Big Easy Laff Off comedy contest in New Orleans while completing his medical residency.
- Made his feature-film debut as Dr. Kuni in Judd Apatow's 2007 comedy Knocked Up.
- His wife, Tran, is also a physician, as well as a breast-cancer survivor.