Beginning February 2026, the overpayment reimbursement process is changing for AARP Medicare Supplement plans from UnitedHealthcare. Whenever possible, electronic payments will be automatically adjusted for the amount owed, eliminating requests for overpayment reimbursements. The change applies only to health care providers who receive electronic benefit payments through Optum Pay.
This new process will be effective in the following service location states where the service is provided:
Arizona
Arkansas
Colorado
Connecticut
District of Columbia
Georgia
Hawaii
Idaho
Iowa
Kansas
Kentucky
Maine
Massachusetts
Michigan
Minnesota
Mississippi
Nebraska
Nevada
New Mexico
North Dakota
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
Currently, we send health care providers a letter with instructions on how to refund benefit overpayments. To help simplify and streamline the process, we’ll recover overpaid funds by offsetting benefit payments for that tax identification number (TIN). If the amount doesn’t cover the overpayment, we’ll send a letter requesting a refund of the total amount.
Notification of the recovery will appear on the Electronic Data Interchanges (EDI) 835 transaction in the form of a reversal claim.
Call the phone number on the back of the member ID card for assistance.
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