You must notify the enumerator of any changes within 30 days of the change. Most changes will not change your NPI number. Only rare circumstances such as fraudulent use of your NPI number will require that you be issued a new number.
You can change the information in your NPI file online. You may either create a user ID or, if you have one already, log in and update your information. Download the form (6-page PDF file; About PDFs) to make your change by mail.
What happens with my NPI if my information changes or I quit practicing?
National Provider Identifier (NPI)
What steps should I take now? Do I need to validate my NPI information?
Will my NPI information be available to others?
What is the National Provider Identifier?
Do I apply for an NPI as an individual or group/organization?
Are there any advantages or disadvantages in changing to the NPI?
What happens with my NPI if my information changes or I quit practicing?









