Dr. Martin Wiesenthal, MD is a Internal Medicine Specialist in San Antonio, TX. He is affiliated with medical facilities Baptist Medical Center and Methodist Hospital. Be sure to call ahead with Dr. Wiesenthal to book an appointment. 45 Ratings. Martin J. Wiesenthal MD PA. 8038 Wurzbach Rd Ste 320 San Antonio, TX 78229. Show Phone Number. Share..