Hi po! Honestly, I'm not super familiar with Tanauan clinics specifically kasi we're from a different area, but a few of my mum friends who had prenatal care there swear by asking their OB/GYN for referrals, they always know the best ultrasound centers nearby with good equipment and experienced technicians. You can also try calling the hospitals in Tanauan directly like they might have in-house ultrasound departments, or check Google reviews para makita kung saan maraming positive feedback from other pregnant moms. Hope you find a good one!