If you need to file or submit a claim, you can either submit the claim online or mail a claim form to us. You can submit claims or complete resubmissions online through ConnectCenter.If we have identified an overpayment and request a refund, please mail the check along with a copy of the overpayment request letter we sent you. Find forms and applications for health care professionals and patients, all in one place. Address, phone number and practice changes. Health care providers can use the Aetna dispute and appeal process if they do not agree with a claim or utilization review decision. Subrogation for health plans. Identify, investigate, recover and prevent inaccurate payments linked to accident-related medical and disability expenses. Use this chart to learn more about each plan. You can see plans and associated payer IDs to look up eligibility and benefits information electronically.