Ryan F. Osborne: Ryan F. Osborne. Producer: OHNI Case Files. Ryan F. Osborne, MD FACS, is the Director of Head and Neck Surgery at the Osborne Head and Neck Institute (OHNI) and is an internationally-renowned expert in head and neck oncology. Dr. Osborne has developed a special interest in the treatment of parotid gland tumors and focuses on the use of minimally-invasive techniques in the care of patients needing parotid surgery. He has...