Sterling Urgent Care/ Sterling Medical Share: Health and FitnessMedical and Dental Sterling Urgent Care/ Sterling Medical Visit Website 2201 Thain Grade Lewiston, ID 83501 (208) 716-0026 (208) 542-9114 (fax) About About Sterling Urgent Care is an employer-owned healthcare company. Sterling can tackle all of your healthcare needs, including occupational health, workman's comp, & an employer membership option.