Monday - Friday. 8 a.m. - 5 p.m. Effective November 1, 2021, the following South Central OB-GYN providers will see patients at new locations: Robert A. DeSantis, MD & Stacey Nix, FNP office will be located at Ellisville OB-GYN. Ph: 601-477-2226. Ashley Floyd, WHNP, CLC, office will be located at South Central Clinic for Women on 15th Avenue in ....