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

NPI Application Help
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. Use of the Back and Forward browser buttons could result in loss of all the information entered. Users should use the Next and Previous buttons provided on the application to navigate between the pages of the application.

Welcome Page / User Menu
Create Login For Existing NPI Page
Reset Password Page
Individual Profile Page
Address Standardization Page
Add Other Identification Number Page
Select Taxonomy Page 1
Contact Person Page
Change Processing Page
Deactivate NPI Page
Application Security Check page
Login Page
Change Password Page
Organization Profile Page
Business Practice Location Address Page
Delete Other Identification Number Confirmation Page
Select Taxonomy Page 2
Certification Page
View Application Page
Create User ID and Password Page
Change Secret Question and Answer Page
Select Entity Type Page
Business Mailing Address Page
Other Identification Numbers Page
Taxonomy / License Page
Select Group Type Page
Processing Page
NPI Enumerator Contact Information
NPI Enumerator Contact Information
CMS has contracted with Cognosante, LLC. to serve as the NPI Enumerator.
The NPI Enumerator is responsible for dealing with providers on issues relating to unique identification. Enumerator staff will be available to assist health care providers with questions regarding the processing of an NPI application. Please note that Enumerator staff will not be able to assist with questions such as which of your subparts should receive NPIs or where NPIs are to be placed in claims transactions.

Questions related to NPI legislation and regulation or other HIPAA-related matters cannot be answered by the Enumerator.

Questions regarding the use of the NPI in health plan billing should be directed to the individual health plans.

The NPI Enumerator may be contacted as follows:

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

Announcements can be displayed on the NPI Enumerator Contact Information Page by the CMS NPPES Administrator.