Having worked in the medical and health insurance fields all my life, I think it is ridiculous that an insurance company can question a Doctor's opinion. Especially Medicare. What is even more crazy is that I was straight out of high school with no education working for Medicare. Yes, I was one of those people I cuss now. After stepping over to the other side and doing billing for healthcare, I know that it is all a game. It's all about the coding and getting the doctors to say the correct words. (for example, high blood pressure and hypertension are not the same; hypertension will get paid, high blood pressure will not).
It frustrates me to see something like this, you are in pain and suffering, not only because of the disease process, but because you lifestyle has to change and it can all be blamed on your insurance company! That's something worth fighting for on capitol hill!
NJT, I'm surprised you work so much with Medicare being a L&D nurse.
Abitaman, I'm sorry you have to suffer because of this. Hopefully, they have loaded you up with some good drugs! I have always had a lot of compassion for people suffering from stones. Maybe because my mom had them when I was little and it was the first time I ever heard her swear! She said, 'get the F*%K away from me'.

We stayed away for quite a while!