Karen Frances B. Mason, MD, FPCP, DPSE Gastroenterology Clinic Schedule: By Appointment See also different: Carina V. Chavente, MD, FPCPChester O. Directo, MD, DPCPDante Cecilio Rey S. Valdez, MDRhoderick Fusilero, MD, DPCPRonillo A. Instrella, MD, FPAMS, FPSD<< return to doctors