713-634-4441. Fx: 713-634-4442. Houston Metro Urology is pleased to welcome Gregory D. Hester, M.D., F.A.C.S., to the HMU team. Dr. Hester is board certified with the American Board of Urology and the American College of Surgeons. Dr. Hester attended The University of Texas at Austin. He then continued his education at The University of Texas ....