BRENNAN OB GYN ASSOC is categorized under PHYSICIANS & SURGEONS specializing in OBSTETRICS & GYNECOLOGY and located at 12700 Southfork Rd. Ste. 230 in or near the Saint Louis, MO area. Find additional information including website, e-mail, map, and directions - OriginalYP.com®. Find additional PHYSICIANS & SURGEONS at MedicalYP.com ®.