AARP Medicare Supplement claims address change

Use the correct mailing address to avoid claim processing delays

The mailing address has changed for AARP® Medicare Supplement claim submissions. Enter the new address into your system, and begin using it immediately to avoid delays with mail forwarding and claim processing. 

UnitedHealthcare Claims Division 

P.O. Box 1878 

Southampton, PA 18966-9998

Health insurance ID cards may still include the old address during this transition and should not be used to submit claims.

How to submit claims

• The most efficient and accurate way to submit AARP Medicare Supplement claims is electronically — using payer ID 36273
• Paper claims are also accepted and should be mailed to the new address

Claims are typically processed/adjudicated within 10–14 days. Learn more about submitting claims for AARP Medicare Supplement Plans or sign in to the UnitedHealthcare Provider Portal to access insured member data.