Mr. O'Neill has specialized in Head, Neck and Skull Base surgery. He recently completed a two year Fellowship at Memorial Sloan Kettering Cancer Center (MKSCC) in New York. Mr. O'Neill has an MD in Thyroid Cancer and publications on all aspects of Head and Neck Cancer Care. In recent times, he conducted a HPV analysis of the 'Unknown Primary' at MKSCC with Dr. Dennis Kraus.