CHA News Article

Providers Reminded of Options for Looking Up Medicare Beneficiary Identifiers

As previously reported in CHA News, the Centers for Medicare & Medicaid Services (CMS) last year redesigned Medicare cards for beneficiaries. The updated cards include a new, unique Medicare beneficiary identification (MBI) number that replaced the previous Social Security-based number. If beneficiaries are unable to provide a copy of their new card, providers may find that information through:

  • The MBI Look-Up Tool through the Noridian Medicare Portal. The new portal feature will only return the MBI if the patient’s new Medicare card has been mailed.
  • Remittance advices generated after Oct. 1, 2018, through Dec. 31, 2019. CMS will return both the new MBI and health insurance claim number (HICN) when providers submit a claim with a valid and active HICN. The MBI will be reported in the same place as the “changed HICN” today.