Karen Frances B. Mason, MD, FPCP, DPSE Gastroenterology Clinic Schedule: By Appointment See also different: Charisse Xena C. Pastorfide, MD, DPCPJoeffrey L. Zales, MDJoseph D. Cabantog, MD, DPBR, FPSVIRLeah P. Sanglay, MD, FPCP, FPCCRonillo A. Instrella, MD, FPAMS, FPSD<< return to doctors