Hey mama! I haven't personally done 3D/4D yet kaya di ko sure kung saan exactly, pero marami sa mga mommy friends ko nag-mention ng clinics sa BGC at Makati area na may ganitong service, yung iba raw nag-book through their OB's referral which is mas convenient haha. Maybe try asking your OB din, or post sa mommy groups kasi usually may mga tao doon na recently had theirs done and can give you specific recs and prices!