Subrogation is a legal concept that often comes up in the personal injury context after a settlement agreement has been reached. Insurance companies can utilize this letter template to seek reimbursement from the person or entity legally responsible for a loss.Subrogation claims reimburse health insurance companies for medical bills they pay in an NYC personal injury case. Learn more about subrogation claims here. I have read the foregoing subrogation agreement, understand its contents and have signed the same as my free act. A notice of claim must be filed in writing. Alternatively, you can fill out the Form AR-1, which is a request for arbitration. You need to seek prompt medical attention and submit your bills to the insurance company within 45 days of treatment to receive payment for medical treatment. Contact. Main Telephone Number. 212.269.4800. When should my company send a Subrogation Letter?