Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Kathryn Arlin Larson, LMT

Massage Therapist in Milwaukie, OR · enumerated 2007.

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

National Provider Identifier

1861521734

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Registry record

Entity type Individual (Type 1)

Name Mrs. Kathryn Arlin Larson

Credential LMT

Sex Female

Practice address 3716 Se International Way, Milwaukie Chiropractic Center, Milwaukie, OR, 97222

Phone (503) 659-0073

Enumeration date Mar 5, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

225700000X Massage Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 11045 (OR) 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.

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Frequently asked questions

What specialty is Kathryn Larson?

Kathryn Larson is registered in NPPES with the primary taxonomy of Massage Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.