Hi mama! Honestly, developmental pediatricians are quite specialized kaya medyo mahirap mahanap, pero try mo mag-inquire sa major hospitals like Amang Rodriguez Medical Center sa Marikina or ang big pedia clinics in QC, maraming kaibigan ko na nag-refer through their regular pedia muna, tapos sila na ang nag-connect sa specialist, kaya maybe start there? You could also try calling the Philippine Pediatric Society or check their directory online para sa lista ng accredited specialists sa area mo!