8 day ago The faculty medical practice mailing addresses are: University of California, Irvine Department of Head and Neck Surgery. 333 City Blvd West Suite 525 Orange, CA 92868. Telephone: (800) 263-9547 Fax: (714) 456-5241. University ENT 250 E. Yale Loop, Suite 200 Irvine, CA 92604 Fax: (949) 225-6303..