Tim,
Dana-Farber is number four cancer center in the U.S., according to U.S. News Report’s Best Hospital listing, and sure tops in other listings too, and heard of them myself. There is the top oncologist there, Dr, Robert Haddad, who may lead the head and neck cancer department also, I’ve been sort of following, who authored a head and neck cancer book too, which I’ve read.
I’m not that familiar with your wife’s cancer, but you can check clinical-trials.gov to see if there are any for this type cancer. Also, depending on insurance, and other factors, location of treatment may not matter, and many stay at Hope Lodge for free at about 28 of their locations, probably more by now when i stayed in 2014. Patients were from all over the country and world.
Good luck!