For Providers For appointments or more information, call (865) 888-7747. Fax: (865) 888-7748 See links below to download printable versions of the referral forms. Knoxville FNA Clinic Referral FormDownload Medical Record Release FormDownload Patient Information for USFNA BiopsyDownload Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading...