Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Brian Witherell, COTA/L

Occupational Therapy Assistant in Lewiston, ME · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1922535624

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Registry record

Entity type Individual (Type 1)

Name Brian Witherell

Credential COTA/L

Sex Male

Practice address Lewiston, ME, 04240

Phone (207) 777-7740

Enumeration date May 12, 2017

Last updated in NPPES Oct 20, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OP008369 (PA) Secondary

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License C2059 (WV) Secondary

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OA4088 (ME) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Brian Witherell?

The National Provider Identifier (NPI) for Brian Witherell is 1922535624, a Type 1 (individual) record in the CMS NPPES registry.

Where does Brian Witherell practice?

The practice location on file with NPPES is in Lewiston, ME. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-20.