Dawn,
I don't the know the specifics of GHI, but I exhausted all my appeals both before and after surgery at Aetna before I went to the state insurance board.
I basically made the case that I wanted to go out of network because DR. Post gave me a better chance of hearing preservation than the IN PLAN alternative they suggested and hearing was important to my job. I also noted Dr. Post's vast experience with AN surgery relative to most other doctors that could do the procedure, the fact that many of the "in plan" doctors worked with other surgeons that were not in plan so I would be right back where I started if I went to an alternative (I also consulted with DR. Galfinos at NYU who is in my plan, but his partner Dr. Roland was not), and told them that Dr. Smouha often worked Dr Post as a team and Dr. Smouha was IN PLAN. I even had letters from my ENT, Dr. Post and Dr. Smouha saying all the same things. They rejected me at every point.
The state insurance guy was hardly interested in all the letters I wrote, my hearing test results, MRI reports or my whole story. All he wanted was copies of the doctor's letters and everything that Aetna had ever sent to me rejecting my appeals. I guess he was a lot more powerful than I am because they changed their tune quickly. I did a lot of work to win this fight. It was very stressful before the surgery and I borrowed money to pay Dr. Post that I will now hopefully be able to pay back quickly. But I also have to thank all my doctors for giving me letters to support my cause. That apparently is the key.
Feel free to ask me any questions as you move through the process and don't be afraid to ask an out of network doctor for a small break in the fee if money is an issue (and it is for almost everyone). Dr. Post was very good about that and Mt Sinai was willing to work out an extended playment plan if I couldn't come up with the cash. I'm sure there are other doctors like that.
Also, check is Dr. Galfinos is in you plan. He seemed like a terrific guy also.
You can contact me privately if you would like.
Wayne