NPI guides
Plain answers about NPI numbers: how to find one, get one, keep it up to date and check it.
- NPI number lookupLook up an NPI number to see who it belongs to, whether it is active, the provider's taxonomy codes, licenses and practice address. Free, no sign-up.
- How to find your NPI numberForgot your NPI number? Search your name and state to find it in seconds, or get it from your NPPES account, your employer or your NPI confirmation letter.
- The NPPES NPI RegistryWhat the NPPES NPI Registry is, what it contains and how to search it. Look up NPPES records faster here, with deactivated NPIs included.
- NPI verificationVerify an NPI number: check the check digit, confirm it is active in NPPES, and match the name, taxonomy and license. One at a time free, or verify a whole list.
- Check if an NPI is activeCheck whether an NPI number is active or deactivated. We show the deactivation date from the CMS deactivated NPI report, which the NPPES search does not.
- The NPI databaseHow to get the full NPI database: the NPPES monthly download, what it contains, how big it is, and easier ways to search or export the providers you need.
- What is an NPI number?An NPI is the 10-digit National Provider Identifier every U.S. healthcare provider uses on claims. What it is, who needs one, Type 1 vs Type 2, and how to look one up.
- How to get an NPI numberApply for an NPI number for free on NPPES. Step by step: create your login, fill in the application, pick a taxonomy code, and how long it takes.
- How to update your NPI informationHow to change your NPI address, name, taxonomy or license details in NPPES. Providers must report changes within 30 days. Step by step.
- The NPI Registry APIHow to use the free NPPES NPI Registry API: endpoint, parameters, limits, an example request and response, and when you need more than the API.