NPI Lookup
Look up and verify any U.S. healthcare provider or organization — NPI number, specialty, credentials, and practice location. Built on public CMS NPPES registry data.
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NPI Lookup by Name
Find a provider's NPI number using their first and last name, with optional state filter.NPI Validator
Check whether a 10-digit NPI is valid using the official ISO/Luhn check-digit algorithm.Taxonomy Code Lookup
Decode any NUCC provider taxonomy code (like 207Q00000X) into its plain-English specialty.Browse by State
NPI registry hubs for all 50 states plus DC — providers by specialty and city.Browse by Specialty
Provider directories for every specialty, from family medicine to physical therapy.Developer API
Clean JSON API for NPI lookup, search, batch verification, and taxonomy decoding.Frequently asked questions
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number assigned to every U.S. healthcare provider and organization by CMS. It is required on HIPAA-standard transactions such as insurance claims. Read our full guide to NPI numbers.
How do I look up a provider’s NPI?
Enter the provider’s name, organization, or 10-digit NPI number in the search box above. You can also search by name or browse by state and specialty.
Is this the official NPI registry?
No. NPI Portal is a private website built on the public CMS NPPES data file. The official registry is npiregistry.cms.hhs.gov. Our data is refreshed from NPPES monthly with weekly incremental updates.
What is the difference between a Type 1 and Type 2 NPI?
Type 1 NPIs identify individual providers (physicians, nurses, therapists). Type 2 NPIs identify organizations (hospitals, group practices, pharmacies). See Type 1 vs Type 2 NPIs.