US · guidance
CMS Pub. 100-04, ch. 2, § 30.4
Certificate of Social Insurance Award
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.
Health insurance beneficiaries receive a Certificate of Social Insurance Award, SSA-30,
showing the Medicare beneficiary identifier, dates of entitlement to Part A and/or Part B
benefits, and the following statement:
This notice may be used if Medicare services are needed before you receive
your health insurance card.
History
(Rev. 4247, Issued: 03-01-19, Effective: 04-01-19, Implementation: 04-01 -19)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
1da29f9acb61877013704534e8b11ea36db1bf3e78be91958aa7a6475f4d1a68
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