Michigan. Ypsilanti. 5301 E. Huron River Dr. All Locations. ... Ypsilanti. 5301 E. Huron River Dr. IHA Hospital Medicine at St. Joseph Mercy Ann Arbor. Open 24 Hours Open 24 Hours Open 24 Hours Open 24 Hours Open 24 Hours Open 24 Hours Open 24 Hours. MyChart Patient Portal COVID-19 Updates. Address. 5301 E. Huron River Dr. Ypsilanti, MI 48197 ....