Hendersonville, TN 37075. Phone. 629-888-5175 Hours. Mon-Fri: 7 a.m.-7 p.m. Sat: 8 a.m.-2 p.m. ... Here you’ll find information for Ascension patients. Patient Portals. My HealthChart. For patients of Ascension Saint Thomas Hickman Hospital, Ascension Saint Thomas Midtown Hospital, Ascension Saint Thomas Rutherford Hospital, and Ascension ....