There is always a question of whether you need to reimburse your health insurer after a collision. The basic scenario: you are struck by another driver. You go to the doctor. Your health insurer pays for your treatment. They then send you a notice saying they are entitled to be reimbursed.
The largest company that handles reimbursements for insurance companies is a company called Ingenix. Ingenix is now being investigated by the NY Attorney General. While the investigation is focusing on what a doctor is reimbursed, it will not surprise me to see a review of the subrogation practices of Ingenix and other health insurers.
I will continue to follow this for you.