Occupational Therapy Assistant in Washington — NPI Providers

812 active Occupational Therapy Assistant providers have a practice location in Washington according to the latest NPPES snapshot. Each profile shows the NPI number, taxonomy code, license details, and practice address — useful for claims, credentialing, and verifying a provider.

No indexed providers to list yet — try the NPI search for WA.

Occupational Therapy Assistant by city in Washington

Frequently asked questions

How many Occupational Therapy Assistant providers are in Washington?
The latest NPPES snapshot lists 812 active providers with Occupational Therapy Assistant as their primary taxonomy and a practice location in Washington.
How do I verify a Occupational Therapy Assistant provider's NPI in Washington?
Open the provider's profile below to see their NPI, taxonomy code, license state, and practice address, then cross-check against the official NPPES registry (linked on every profile).
Can I get this data through an API?
Yes — the NPI Portal API provides JSON search by specialty, state, and city, plus batch NPI verification.

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