Post Op Insurance Question

I am a data person.. So, I am trying to obtain whatever I can.. ONE AREA OF NEED is the past payments... If you are POST OP over a year.. If you still have your information.. YOUR INFORMATION IS MOST CRITICAL.. I have been told that the insurance companies have REDUCED the amounts since all the publicity.. You have the right to know what they have paid.. Also, there are little procedure codes on your bill.. If you have those, you can call them and find out. Please let me know. It's ok to email me..