NPI Portal NPI Lookup & Verification

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

Timothy A Larson, MAPT

Physical Therapist in Omak, WA · enumerated 2005 · practices at Ascent Physical Therapy Service Pllc.

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

National Provider Identifier

1093715377

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Registry record

Entity type Individual (Type 1)
Name Timothy A Larson
Credential MAPT
Sex Male
Practice address Omak, WA, 98841
Fax (509) 826-1152
Enumeration date Jul 28, 2005
Last updated in NPPES Sep 26, 2016

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

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT00006179 (WA) Primary

Other identifiers

Identifier Type State Issuer
1093715377 Other WA NPI
7081896 Medicaid WA -
GAB00169 Other WA MEDICARE OLD PIN

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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Timothy Larson?
Timothy Larson is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-26.