Hi, rmkelly -
one of my best friends from college lives in Indy.
My surgery (11 years ago) was done in the Chicago suburbs by Dr. Robert Battista @ the Ear Institute of Chicago. https://chicagoear.com/
I highly recommend him. In addition to doing surgery to treat ANs, Dr. Battista also does radiation.
This is very important because it means he isn't "biased" when it comes to one treatment option vs another.
Docs who do surgery, typically recommend surgery. Docs who do radiation, typically recommend radiation (if the ANs size and location make it possible). You should consult with a doc who does both in order to get the pros & cons of each.
I've referred lots of people to Dr. Battista for both ANs and BAHAs - and all of them have thanked me.
If you do see him, tell him Jan sent you!