· Choose Clarkston Medical Group's Patient Portal to communicate in a secure & confidential manner with your healthcare team in Clarkston, MI. View now. Skip to Content ... Primary Care & Internal Medicine in Clarkston, MI. Clarkston. 5701 Bow Pointe Dr., Suite 100 Clarkston, MI 48346. Phone: 248-625-2621. Fax: 248-625-2622..