I was so upset when I received this bill. I did no...

I was so upset when I received this bill. I did not understand WHY I was being billed when I already paid the Hospital for this. I was sure this was a scam but I called the # on the bill and ended up speaking with a Stephanie. She explained to me (about 3 times) that radiologists bill separately from the hospital! Who knew?! She was so patient with me and I know I was being difficult so she deserves a raise and promotion!!!