Hilton houston plazamedical center hotel puts you in the heart of the texas medical center the largest medical facility in the world with 49 institutions covering an area larger than downtown dallas inside the houston loop of i 610 this centrally located houston medical center hotel is within 15 minutes of william p hobby hou airport and 40 minutes of george bush intercontinental iah on the doorstep of rice university and the charming district of rice village this west houston hote