Ascension St. Joseph Hospital Return to Directory Business Name: Ascension St. Joseph Hospital Healthcare: Medical/Dental Business Website Address: https://healthcare.ascension.org/sites-of-care/michigan/ Business Phone Number: (989) 362-3411 Fax: (989) 362-0110 Business Address: 200 Hemlock St. P.O. Box 659. Tawas City, Michigan ZIP Code: 48764