MBI ON RESIDENT’S CARD DOES NOT WORK?

Requests to change Medicare Beneficiary Identifiers (MBIs) can occur if a Medicare beneficiary, their authorized representative, or CMS suspects a number is compromised. If CMS reissues MBIs, it is possible you will discover the old number is no longer valid before getting a new card with their new MBI.

If you get an eligibility transaction error code (AAA 72) of “invalid member ID,” or “The beneficiary you requested cannot be found. Please verify your information.” your patient’s MBI may have changed.

• Do a historic eligibility search to get the termination date of the old MBI
• Get the new MBI from your Medicare Administrative Contractor’s secure lookup tool. Sign up now! for the Portal to use the tool.

See the MLN Matters Article for answers to your questions on using MBIs.