You can ask your oncologist to send pathology to Johns Hopkins for testing. My huband also had tonsil cancer and we had pathology sent. We received what I view as good news this week and his was HPV 16 positive . We are also attemping to get in the Johns Hopkins study, and while they do not require the test to be done, we had it done because we live so far away. Since we know it is HPV possitive we do not mind the expense for fly to Baltimore. I googled HPV testing Johns Hopkins and printed the detailed information on sending the tissue, I gave it to the oncologist and they sent it for testing. I was so happy when I we got the results,because the studies show a better prognosis for HPV 16 + head and neck cancer.