Listings >> FAMILY MEDICINE WILLIAM M. ENTWISTLE, M.D. (209) 725-3122 Address: 3385 G STREET STE A MERCED CA 95340 Gender: MALE Board Certified: YES Medical School: UNIVERSIDAD MAYOR OF SAN SIMON Internship: MERCY MEDICAL CENTER MERCED Residency: MERCY MEDICAL CENTER MERCED Fellowship: Medical Group: Accepting New Patients: YES 3385 G Street, Merced 95340 Get directions FAMILY MEDICINE M-F 8-5