Glenn Ernest Fonbuena, MD, FPCP, FPSG, FPSDE Gastroenterology, Internal Medicine Clinic Schedule: By Appointment See also different: Edward Vincent G. Gaerlan, MD Genoveva Sibayan, MD, FPCP Nathaniel Y. Cortez, MD, FPCP, FPCC Edward Vincent G. Gaerlan, MD Carina V. Chavente, MD, FPCP << return to doctors