Dr. Marilyn J. Vanover MD Obstetrician and Gynecologist. She is located at 502 Madison Oak Drive in San Antonio, TX 78258. Can help patients with the following: High Blood Pressure, Overactive Bladder (OAB), Uterine Cancer, Uterine Fibroids, Vaginal Pain, Yeast Infection. Appointment can be made via the phone number (210) 946 - 1300..