Dr. Leong is a licensed Internal Medicine in CA. Graduated in 1978. Medical degree obtained from UCSF School of Medicine. Completed residency training at Valley Medical Center of Fresno and fellowship training at Stanford University. Currently practices at Sutter Health (Sutter Health), located at 2100 Webster St, San Francisco, CA 94115. Dr. Leong specializes in internal medicine, primary care.. In addition to English, Dr. Leong speaks Mandarin and accepts new patients.