Occupational Therapy Assistant Providers — NPI Directory

41,620 active Occupational Therapy Assistant providers hold an NPI in the latest NPPES snapshot. Occupational Therapy Assistant falls under the “Respiratory, Developmental, Rehabilitative and Restorative Service Providers” taxonomy grouping and spans 5 NUCC taxonomy codes. Browse by state, or look a provider up by name or NPI number.

Occupational Therapy Assistant by state

Taxonomy codes for Occupational Therapy Assistant

Frequently asked questions

How do I find a Occupational Therapy Assistant provider's NPI number?
Search by name with the NPI search, or browse by state below. Every profile shows the provider's NPI, taxonomy code, practice address, and NPPES status.
What taxonomy codes does Occupational Therapy Assistant use?
Occupational Therapy Assistant covers 5 NUCC taxonomy codes, including 224Z00000X (Occupational Therapy Assistant). Each code page explains when it applies.
How many Occupational Therapy Assistant providers are there in the U.S.?
Our latest NPPES snapshot lists 41,620 active providers with Occupational Therapy Assistant as their primary taxonomy.

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