Washington NPI Registry — Provider Lookup

Look up NPI numbers for healthcare providers in Washington. Our latest NPPES snapshot includes 239,786 active providers and organizations with a practice location in Washington, searchable by name, specialty, and city.

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Frequently asked questions

How do I look up an NPI number in Washington?
Use the NPI search and select WA, or browse the specialty and city directories on this page. Every provider profile shows the NPI, taxonomy, practice address, and status.
How many healthcare providers are registered in Washington?
Our latest NPPES snapshot lists 239,786 active providers and organizations with a practice location in Washington.
Is this the official Washington NPI registry?
No — NPI numbers are issued federally by CMS, not by states. This is a private directory built on the public CMS NPPES data file; the official registry is npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-09.