NPPES, National Plan & Provider Enumeration System Skip to main content

National Plan and Provider Enumeration System (NPPES)

The Administrative Simplification provisions of the Health Insurance Portability and Accountability Act of 1996 (HIPAA) mandated the adoption of standard unique identifiers for health care providers and health plans. The purpose of these provisions is to improve the efficiency and effectiveness of the electronic transmission of health information. The Centers for Medicare & Medicaid Services (CMS) has developed the National Plan and Provider Enumeration System (NPPES) to assign these unique identifiers.
The website works best in Internet Explorer versions 6.0 and higher and Firefox versions 2.0 and higher. Users may experience issues with other browsers and are recommended to use the browsers listed above. It is recommended that browser windows be opened using the icon on the desktop to avoid shared browser sessions. Some browsers share sessions regardless of how the browser is opened. Please check with the browser's vendor about session management. When NPPES detects multiple browsers open within the same session, NPPES will terminate the session to protect the data in NPPES. Data entered will be lost and will need to be re-entered.
If you are a Health Care Provider, you must click on National Provider Identifier (NPI) to login or apply for an NPI.
A standard identifier has not yet been adopted for health plans.
Search the NPI Registry. The NPI Registry enables you to search for a provider's NPPES information. All information produced by the NPI Registry is provided in accordance with the NPPES Data Dissemination Notice. Information in the NPI Registry is updated daily. You may run simple queries to retrieve this read-only data. For example, users may search for a provider by the NPI or Legal Business Name. There is no charge to use the NPI Registry.

About NPPES....

CMS has contracted with Cognosante, LLC. to serve as the NPI Enumerator.
The NPI Enumerator is responsible for assisting health care providers in applying for their NPIs and updating their information in NPPES.
The NPI Enumerator may be contacted as follows:

By phone: By e-mail at: By mail at:
1-800-465-3203 (NPI Toll-Free)
1-800-692-2326 (NPI TTY) NPI Enumerator
PO Box 6059
Fargo, ND 58108-6059
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