The NPI Registry is a free directory of all active National Provider Identifier (NPI) records operated by the U.S. Centers for Medicare Medicaid Services (CMS)

Individual health care practitioners and organizations acquire their unique 10-digit NPIs to identify themselves in a standard way throughout their industry. Covered health care practitioners, all health plans, and health care clearinghouses must use NPIs in their administrative and financial transactions. 

Individuals or organizations apply for NPIs through the CMS National Plan and Provider Enumeration System (NPPES). After the NPI is grantedthe parts of the NPI record that have public relevance, including the practitioner or organization's name, specialty (taxonomy) and practice address are published in the NPI Registry. 

When reimbursement claims are filed with insurance companies, many of them verify that the practitioner information on the claim matches what appears in the NPI Registry. If it does not match, there could be delays in the claim adjudication process. This occurs much more frequently with out-of-network practitioners. 

Click here to visit the NPI Registry website, where you can enter your NPI number (individual and organization) to ensure that your information is up to date.

If you are a practitioner with questions about your record, their Enumerator can assist you by phone: 800.465.3203 | 800.692.2326 TTY | or by