HMS can be reached at 877-252-8949. HMS offers two methods of electronic submissions for subrogation requests.How subrogation claims work in car accident and personal injury. How long subrogation takes and your rights when car or health insurance seeks to subrogate. Simply fill out the form below, and one of our experienced attorneys will give you real options for how best to move forward with your case. It is beneficial for insurance companies. Subrogation refers to one party standing in for another during a personal injury case. Subrogation is an insurer's right to pay out a claim and then seek reimbursement from an atfault thirdparty responsible for the loss or damage. Contact the City Clerk's Office at 334-241-2096 for questions concerning filing a claim with the City of Montgomery. A key feature of our practice is early involvement in the claim investigation.