Menu Search>Texas Perinatal Group 512-459-1131 Our Clinicians Our Locations Patient Forms Pay Your Bill Our Clinicians Jessica Cantu, M.D. Maternal-Fetal Medicine Specialist Swathi Challa, D.O. Maternal-Fetal Medicine Specialist Byron Elliott, M.D. Maternal-Fetal Medicine Specialist Timothy Harstad, M.D. Maternal-Fetal Medicine Specialist Laura Dranguet, CNS Clinical Nurse Specialist/Perinatal