Doctors Hospital of Stark County - Residency Family Medicine. Practice Information: Aultman Medical Group - MedCorp. Location: Aultman Medical Group - MedCorp 2500 Wales Ave NW Suite A Massillon, Ohio 44646. Patient Portal. Office Hours: Mon - Thu: 8 a.m. - 5 p.m. Fri: 8 a.m. - 4 p.m. Phone: 330-833-8996. Fax: 330-833-6969..