Contact Information Location Address: Postal Address: KAM Solutions, P.C. 2417 Marshall Avenue Mattoon, IL 61938 KAM Solutions, P.C. P.O. Box 1756 Mattoon, IL 61938   Toll Free: (888) 905-0298  Local: (217) 235-0298  Fax: (217) 235-0299   Email: Inquiries Hours of Operation: Monday - Friday  7:00 am - 5:00 pm (central time) (major holidays excluded)