Filling out forms using the online Patient Portal: ... Grand Rapids Office (Trauma) 260 Jefferson Ave SE Ste 115 Grand Rapids, MI 49503 616-685-2663. Quick Links ... Pay My Bill. Careers. Contact. About Orthopaedic Associates of Muskegon (OAM) Our highly-experienced physicians and staff provide orthopaedic surgery, nonsurgical orthopaedic ....