I have aetna for insurance and I have never had a problem with them and all my mri's and test. Except now I am getting a bill for $1400.00 because they are charging me almost full price for two of them. I saw a neuroligist so they could test for ms and I know I brought a referal I always have in the past. I have had so many mri's. This was a new doctor. I called my primary today hoping they can help me out here. Any suggestions. I'm already in collections.