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Admitting and Online Pre-Registration Billing Information Department Phone Directory Maps & Directions Patient Accommodations Preparing for Hospitalization Virtual Tours & Slide Shows Visiting Hours & Guidelines		Home Patients & Visitors Maps & Directions Maps & Directions Mark Twain Medical Center 768 Mountain Ranch Rd San Andreas, CA 95249 (209) 754-3521 Select Locate Map to get a map to this facility. * Required field(s) Get driving directions from your location: Enter your starting address to get Driving Directions to Mark Twain Medical Center Street Address* City  State  ZIP* Select One Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington Washington DC West Virginia Wisconsin Wyoming Disclaimer Explore all of our facility locations Use our interactive map to locate Dignity Health facilities in California, Arizona, and Nevada. more... Additional Links Who We Are Serving the Community