Please note that all signatures must be witnessed by an FHN staff member. If you have any questions about this process, please contact the MyFHN Coordinator at 815-599-6907 or toll-free at 1-877-6000-FHN (1-877-600-0346) ext. 907. To revoke proxy permission, a Proxy Revocation form must be completed. Thank you for your help in keeping MyFHN ...Register for The Myfhn Patient Portal‧Services.