AUSTIN (KXAN ) — Santa Claus made an early stop at Ascension Seton Williamson this week to bring holiday cheer to parents and their babies at the neonatal intensive care unit (NICU) Staff had the babies ready for the visit, dressing them up for their first holiday picture with Santa. Preemie baby in the NICU (Ascension Seton Williamson photo)Preemie baby in the NICU (Ascension Seton Williamson photo)Santa poses for pictures with preemies in the NICU (Ascension Seton Williamson photos) Ascension Seton said its Williamson location was a Level II NICU that provides care for newborns experiencing difficulties after birth.