ARH Endocrinology Associates- Highlands 5000 KY-321 Suite 2162, Prestonsburg, Ky 41653. ... 306 Hospital Drive Suite 203, South Williamson, KY 41503. 606-237-4956. ARH Specialty Associates - Whitesburg A Department of Whitesburg ARH Hospital 214 Hospital Rd Whitesburg, KY 41858..