Karen Frances B. Mason, MD, FPCP, DPSE Gastroenterology Clinic Schedule: By Appointment See also different: Johanna D. Tipallo, MD, DPCP Lorivi La Nayce B. Mayo, MD, FPCP Nathaniel Y. Cortez, MD, FPCP, FPCC Vicky Ann S. Bautista, MD Glenn Ernest Fonbuena, MD, FPCP, FPSG, FPSDE << return to doctors