I'm pretty determined once I believe I'm right and usually succeed in my appeals if for no other reason than "Just get this woman off the phone!"
Sounds like we're twins separated at birth
My neurotologist said I could have the BAHA implant surgery once my head "was healed" from my AN surgery - which in hindsight is a pretty subjective thing to say.
I had my AN surgery at the end of May, and tried the BAHA demo the middle of September. At that time, my doc said my head was healed enough and that I could have the surgery any time. He told me it normally takes insurance companies 4 to 6 weeks to approve the surgery and that his staff would handle the request.
His staff did a great job, but I had to keep hounding my insurance company. First they "never received the request from the doctor's office", then they found the request but "had to have it sent out for further review", then they "needed more information from the doctor on why I needed it", etc., etc., Finally I got our insurance broker involved (policy is through my employer) and he told them to stop giving me the runaround. As he told them, they pay for Cochlear implants so they have to treat BAHAs the same way. BAHAs are to unilateral deafness (SSD) what Cochlears are to bilateral deafness.
Long story, short, my insurance company didn't approve the procedure until the end of February - a whopping six months after our request
But I'm just thankful they finally did. I had my surgery the first week in March.
I didn't have to convince my neurotologist that the BAHA was right for me - he's done a lot of the surgeries, and is definitely "sold" on them.
I'd find out from Dr. McKenna when he considers your head to be healed and then schedule an appointment with his associate and ask to try the demo. If you like it, you can go from there.
Jan