You may submit your required documents via Patient Portal, mail, fax, e-mail or in person: Medical Services Campus Health Services PO Box 6033 824 S. San Francisco St. Bldg. 25 Flagstaff, Arizona 86011-6033. Phone: 928-523-6359 Fax: 928-523-4411 E-mail: chs.records@nau.edu.