Developmental Therapist in Washington — NPI Providers

11 active Developmental Therapist 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.

Frequently asked questions

How many Developmental Therapist providers are in Washington?
The latest NPPES snapshot lists 11 active providers with Developmental Therapist as their primary taxonomy and a practice location in Washington.
How do I verify a Developmental Therapist 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.