Dr. Rebecca Kay Fastle is a Emergency Medicine and Pediatrician in San…read more Antonio 78229, SAN ANTONIO and has an experience of 31 years in these fields. Dr. Rebecca Kay Fastle practices at Greater San Antonio Emergency Physicians in San Antonio 78229, SAN ANTONIO,UNM Hospital (Univ of NM) in Albuquerque 87131, Albuquerque NM and Greater San Antonio Emergency Physicians in El Paso 79902, EL PASO.read less