Dr. Choy is a licensed Internal Medicine in CA. Medical degree obtained from UC Davis School of Medicine. Completed residency training at Kaiser Permanente. Currently practices at Kaiser Permanente (Kaiser Permanente), located at 2238 Geary Blvd, San Francisco, CA 94115. Dr. Choy specializes in internal medicine and primary care.. In addition to English, Dr. Choy speaks Mandarin and Cantonese.