Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexa Leigh Erwin, COTA

Occupational Therapy Assistant in Klamath Falls, OR · enumerated 2014 · practices at Marquis Companies II, Inc.

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

National Provider Identifier

1285059139

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Registry record

Entity type Individual (Type 1)

Name Alexa Leigh Erwin

Credential COTA

Sex Female

Practice address 1401 Bryant Williams Dr, Klamath Falls, OR, 97601

Phone (541) 882-6691

Enumeration date Mar 2, 2014

Last updated in NPPES Mar 2, 2014

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 295582 (OR) Primary

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1800844 (KS) Secondary

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

Is NPI 1285059139 active?

Yes, as of the latest NPPES snapshot, NPI 1285059139 is active (record last updated 2014-03-02).

How do I verify Alexa Erwin's NPI record?

Cross-check NPI 1285059139 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-02.