Yes, there are a number of things he can do. The most effective thing he can do is hire a lawyer that does bankruptcy work to negotiate for him and threaten that he is going to take a bankruptcy if they don't agree to a reduction. Of course, the disadvantage to this is that the lawyer will charge a fee. Please note that I am not saying he should actually file a bankruptcy, although that would wipe the debt out, I'm just saying he uses a lawyer that threatens bankruptcy.
Next, he can get an itemized statement of what he is being charged for and ask the hospital if they will accept the amount Medicare would have paid. He can go to the search at this link:
and there will be several websites that allow him to determine, based on the code, how much Medicare will pay. He can then offer them that much.
The third thing to try is that many medical providers take part in a program whereby they write off the bills for a person that is uninsured. There are a number of these programs and he can find the websites of several of them by going to this Google search:
He also needs to check and see if the car in which he was riding had PIP or Medical Payments insurance. Either of those will help with the bills.
When he is writing to the hospital on all of these he can also mention that he had not felt the need to be treated and told everyone involved that he didn't want to be treated and yet he was forced into it. He can mention, although it is much better if he uses a lawyer to mention this, that he will file a complaint with the state licensing board based on this.
He can also hire a lawyer that does personal injury work to make a claim on the liability insurance of the person who was at fault in the wreck.
You can find a lawyer to assist you by going to www.lawyers.com and in the section for Area of Practice enter Civil Litigation or Personal. Either of those will have the skill set you need.
If your question has been answered then I'd offer my best wishes to you and ask that you please not forget to leave a Positive Rating so I receive credit for my work.
Of course, please feel free to ask any follow up questions in this thread. I want to be sure that all of your questions are answered.