National Provider Identifiers
This is an urgent reminder to all State Medicaid programs that, as covered entities under the
Health Insurance Portability and Accountability Act of 1996 (HIPAA), States must accept and
use, by May 23, 2007, National Provider Identifiers (NPIs) in electronic transactions for which
the Secretary has adopted a standard (i.e., standard transactions). Please make certain that your
Medicaid Management Information System (MMIS) is prepared to accept and use NPIs for all
HIPAA defined health care providers. You should also instruct such providers to apply for their
NPIs if they have not already done so.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: September 19, 2006
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.