I'm not an expert by any means, but I worked for a car insurance company for a while. Depending on the state you live in and your coverage you might have to report it to your insurance company, too. Eastern states have your insurance pay for the hospital up front, and the remainder comes from his. Western states comes from his policy. (Just as a general rule of thumb, and not completely specific.) I hope you feel better, and this guy gets what's coming to him. It's totally against your interests to be "nice" to him at all. He'll never learn a lesson if you don't make it as painful as possible for him.