Hi mama! Honestly, I'd suggest asking the TPDH front desk or the OB ward directly kasi sila ang may updated list ng affiliated private OBs, marami silang doctors pero it really depends kung sino available and compatible sa schedule mo. One of my mum friends nanganak din sa TPDH last year with a private OB and she said the staff were super helpful sa pag-recommend based sa her preferences, so definitely go straight sa hospital and ask!