Genoveva Sibayan, MD, FPCP Internal Medicine Clinic Schedule: By Appointment See also different: Aprilyn T. Gagtan, MDChester O. Directo, MD, DPCPGlenn Ernest Fonbuena, MD, FPCP, FPSG, FPSDEHannah C. Urbanozo-Corpuz, MD, FPCP, DPSEDM,CCDMelvin R. Hacutina, MD, FPCP, DPSE<< return to doctors