I had same issue that my wife made an appt with Orthodontics for my daughter's brace checkup. She requested him to hire terp few weeks before. On that day, she show up and Dentist said " I spoke with attorney and he told me that it is an optional so I don't have to hire interpreter and I just can write note back and forth". My wife was 
and left. She called HR and explained about situation. They told her that Dentist is very wrong for asking Attorney opinion about ADA law. They found her different Dentist that will comply ADA law. So far, new dentist hired terp when my wife and daugther showed up on appointed day.
Often, Doctors, Dentist, and some business tend to run around and make excuses that they don't know how to hire terp. We gave them info and ph number of Interpreter service and they lose it later. That's not professional of them. They should be checking out Online or "walk their finger" on phonebook!! IT's all in there!! Sheesh :roll:
CAtty
