Dr. Sim is a licensed Internal Medicine in CA. Graduated in 1990. Medical degree obtained from Stanford Medical School. Completed residency training at Mass. General and fellowship training at VA Palo Alto. Currently practices at UCSF Health (UCSF Health), located at 1545 Divisadero St., San Francisco, CA 94115. Dr. Sim specializes in internal medicine, primary care.. In addition to English, Dr. Sim speaks Cantonese.