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CMS Regulations & Guidance: EIN

Guidance for an Employer Identification Number.

Final

Issued by: Centers for Medicare & Medicaid Services (CMS)

Issue Date: August 02, 2020

The Employer Identification Number, or EIN, offers a standard way to identify employers in electronic transactions.  

The Internal Revenue Service issues EINs, which must be on all HIPAA electronic transactions.

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DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.