Mailing Address: P.O. Box 779, Flint, Michigan 48501-0779

Gloria Schwerin Principal gloriaschwerin@billspectrum.com Phone: 810-720-5715 Fax: 810-732-0891 Alt Fax: 810-600-1597

Roger A. Plue Principal rogeraplue@thespectrumgroup.biz Phone: 810-444-3938 Fax: 810-732-0891

Betty Davenport Operations Manager bdavenport@billspectrum.com Phone: 810-720-5715 Fax: 810-732-0891

Jackie Scotten Accounts Receivable Manager jscotten@billspectrum.com Phone: 810-720-5715 Fax: 810-732-0891

Susan Plue Credentialing, Purchasing, Marketing and Website susanplue@billspectrum.com Phone: 810-720-5715 Fax: 810-732-0891