PBO Officers and Members Prospero Ma. C. Tuaño, M.D. PRESIDENT Teresita R. Castillo, M.D., MHPED VICE PRESIDENT Ruben Lim Bon Siong, M.D. BOARD SECRETARY Reynaldo E. Santos, M.D. TREASURER Milagros H. Arroyo, M.D., MPH TRUSTEE Fay Charmaine S. Cruz, M.D TRUSTEE Lorenzo R. Fernandez, M.D. TRUSTEE Jacqueline H. King, M.D., MBE TRUSTEE Richard C. Kho, M.D. TRUSTEE Alvina Pauline D. Santiago, M.D TRUSTEE Antonio S. Say, M.D. MHPED TRUSTEE Pearl M. Tamesis-Villalon, M.D. TRUSTEE Joseph Anthony J. Tumbocon, M.D. TRUSTEE Sherman O. Valero, M.D. TRUSTEE Marie Joan V. Loy, M.D. (Ex Officio) TRUSTEE Mario V. Aquino Sr., M.D. MEMBER Jeffrey C. Lim, M.D. MEMBER Maria Catherina C. Nasol, M.D. MEMBER Felice Katrina T. Ranche, M.D. MEMBER Maria Victoria A. Rondaris, M.D., MPH MEMBER Darby E. Santiago, M.D. MEMBER Mary Ellen A. Sy, M.D. MEMBER Marissa N. Valbuena, M.D., MHPED MEMBER