Riverwood Garrison Clinic & Healthcare Center Share: Health Care Facilities Riverwood Garrison Clinic & Healthcare Center Visit Website 200 Bunker Hill Drive Aitkin, MN 56431 (218) 927-2121 (888) 270-1882 (218) 927-5538 (fax) Facebook Hours: Clinics in Garrison, Aitkin & McGregor. 25-bed hospital in Aitkin. See website for location hours. About Map About Patients can receive a full range of primary healthcare services at Riverwood clinics & the Aitkin hospital offers a large staff of specialists to provide you with the best & latest medical treatment. Directions Garrison Clinic - One mile west of Garrison on Highway 18; Aitkin Clinic/Hospital - Located 1 block South of Highway 47 on West side of 169, turn right on 5th Street, just 1/2 block on the right. What's Nearby? Distance: 5 10 15 20 25 50 mi.