Elizabeth R. Taghechian MD Marietta - 770-422-8505 call Marietta OB-GYN Affiliates to speak with Elizabeth R. Taghechian, MD about the highest quality of Gynecological and Obstetric services available. ... Dr. Elizabeth Taghechian speaks English and Farsi. Patient Resource Center. ... Patient Portal. Marietta OB-GYN Affiliates, P.A is one of ....