Medicare Claims Processing Manual (Pub. 100-04), Ch. 2 § 10.9
A/B MAC (A), (B), or (HHH), or DME MAC Requests to Verify
10.9 - A/B MAC (A), (B), or (HHH), or DME MAC Requests to Verify
Patient’s Medicare beneficiary identifier
(Rev. 4247, Issued: 03-01-19, Effective: 04-01-19, Implementation: 04-01 -19)
The term Medicare beneficiary identifier (Mbi) is a general term describing a
beneficiary's Medicare identification number. For purposes of this manual, Medicare
beneficiary identifier references both the Health Insurance Claim Number (HICN) and
the Medicare Beneficiary Identifier (MBI) during the new Medicare card transition
period and after for certain business areas that will continue to use the HICN as part of
their processes.
Where the name and Medicare beneficiary identifier information on a claim does not
match the CMS central record, the A/B MAC (A), (B), or (HHH), or DME MAC will
return the claim to the provider and request the provider to verify the information.
The provider will compare the name and number on the claim with that on provider
records. If the information submitted was incorrect, the provider will return the claim to
the MAC with the corrected information.
If, however, the information in the provider’s records identifying the patient is the same
as the information submitted on the claim, the provider will contact the SSO for
assistance.