Dr. Koh is a licensed OB/GYN in CA. Graduated in 1980. Medical degree obtained from Boston University School of Medicine. Completed residency training at Mount Zion Medical Cente. Currently practices at Sutter Health (Sutter Health), located at 2100 Webster St, San Francisco, CA 94115. Dr. Koh specializes in Abnormal uterine bleeding, Abortion, Adolescent gynecology, Advanced laparoscopy for ovarian pathology, ectopic pregnancy, fibroids and endometriosis, Amenorrhea, Antepartum testing..... In addition to English, Dr. Koh speaks Mandarin and accepts new patients.