Medical bill liability

[leek]

I had shoulder surgery 3 years ago. I had the procedure completely pre-approved by my insurance company who paid the doctor and hospital bills after their normal discount. A month after the operation I received a bill from a physician's assistant who helped on the operation. I contacted my insurance company and they informed me that they do not cover the use of a physician's assistant. I did not pre-approve the physician's assistant and had no prior knowledge that he would be involved in the operation or that my insurance company would not pay. Am I liable? It seems to me that there was no contract between me and the physician's assistant.

Thanks

 

[seniorjudge]

You are liable for your own bills.