Patient Portals | Ascension Locations Ascension Genesys Hospital Hospital/Medical Center Primary Care/Clinic Imaging Laboratory Address 1 Genesys Pkwy Grand Blanc, MI 48439 Phone 810-606-5000 Hours Visiting Hours: 5 a.m. to 9 p.m. Patient Portals Patient Portals and Resources We’re committed to providing you with personalized, compassionate care..