Interesting question.
My DH was recently in an accident, and the hospital would NOT even file our insurance, which would have paid them; they want the whole bill paid in full upon settlement. So we'll be out 100% on that bill, which is a lot more had our insurance paid, then we could have paid our health insurance back.
Lawyer's office says this hospital will NOT even lower the bill upon settlement. They want (and will get) ALL of it. This hospital is notorious in our area for it's ungodly rates. AND, to top it off, it is SUPPOSED to be a non-profit facility. What a joke.
In other words, we would be happy to pay our insurance 100% of what they paid!
I know you didn't ask for that information, I guess I'm just blowing off steam!
I have found out more than I want to know lately concerning accidents, insurance, medical bills, and legalese than I ever wanted to know.
Good luck in your case.