Headquarters – Plymouth 875 S Main St. Plymouth, MI 48170 Phone: (734) 454-4100 Fax: (734) 454-1300 Royal Oak 2310 E 11 Mile Road Royal Oak, MI 48067 Phone: (248) 399-7331 Fax: (248) 414-3848 Allen Park 7915 Allen Road Allen Park, MI 48101 Phone: (313) 388-7180 Fax: (313) 388-3216 Grayling PO Box 627 Grayling, MI 49738 Phone: (989) 348-4055 Fax: (989) 348-6451