<prompt> Human: Ill try to make this short. Sorry for the formatting, on mobile. In July of 2017 I went to a specialist doctor that was in network with my BCBS insurance. Paid the copay and insurance paid the rest in August. I got a new job with new insurance in October 2017. Fast forward to today, I get a bill from the doctor for the entire amount minus copay because BCBS took the funds back. I was covered under my insurance plan when I saw the doctor and now they want me to pay the entire bill over a year later. I am going to call the insurance company today but Im wondering what I can expect and if I actually need to pay this bill or not. Any insight would be truly helpful.  <response>: Definitely call BCBS and get them to help you, they can help you work with the doctors office to figure out what happened. If the insurance is through your employer, your HR department might be able to help you as well. 