PROVIDERS We have 50+ providers caring for patients of all ages. Locations All Locations Lewiston Orthopedics Specialties All Specialties Spine Surgery Providers Any Provider Gregory D. Dietrich, M.D. Gregory D. Dietrich, M.D. Orthopedics Surgery Spine Surgery VIEW PROFILE Lewiston Orthopedics (208) 743-3523 Use the filter above to find a specific provider