Information on GNC in Otisville, MI 48463 Outlet Note Regular Brands GNC Michigan Otisville 328958 Rating 4.7 based on 97 votes Address 337 North State Road, po box 127 Otisville, MI 48463 Phone Hours may vary in different stores. For accurate hours, please contact each store directly. Suite643 Hours may vary in different stores. For accurate hours, please contact each store directly. Nearby GNC Outlet GNC Outlet - Birch Run GNC Outlet - Burton GNC Outlet - Bridgeport GNC Outlet - Bay City People Also Viewed