Hours Of Operations GNC Idaho Nampa GNC Hours of Operation and Locations in Nampa, ID 4.9 - 150 votes 2 Locations in Nampa GNC Hours Category: Beauty & Health GNC - Nampa, ID 83686 2310 12th ave Rd(208) 466-1275 View Store Details GNC - Nampa, ID 83651 1509 Caldwell Blvd., Suite 1206(208) 463-8030 View Store Details Explore NampaView More Apparel CostcoRoss Dress for LessBurlington Coat FactoryKmartH & M Sports CostcoTargetSports AuthorityBig 5 Sporting GoodsSportsman's Warehouse Jewelry CostcoHobby LobbyBurlington Coat FactoryKohl's OutletKay Jewelers Recommend For You Cotton on Bally Total Fitness Eastern Mountain Sports Trader Joe's The Athlete's Foot Diane's Beachwear Bottega Veneta Hanna Andersson Louis Vuitton Sportsman's Warehouse