Information on GNC in Boise, ID 83706 Outlet Note Regular Brands GNC Idaho Boise 325578 Rating 4.7 based on 97 votes Address 660 East Boise Avenue Boise, ID 83706 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 - Boise GNC Outlet - Boise GNC Outlet - Boise GNC Outlet - Boise People Also Viewed