Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mariann Koenig Oxford, COTA

Occupational Therapy Assistant in Kirkland, WA · enumerated 2013.

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

National Provider Identifier

1114363223

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Registry record

Entity type Individual (Type 1)

Name Mariann Koenig Oxford

Credential COTA

Sex Female

Practice address 8450 Ne 141st St, Kirkland, WA, 98034

Phone (425) 772-8113

Enumeration date May 15, 2013

Last updated in NPPES May 15, 2013

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OC00000910 (WA) 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

Is NPI 1114363223 active?

Yes, as of the latest NPPES snapshot, NPI 1114363223 is active (record last updated 2013-05-15).

How do I verify Mariann Oxford's NPI record?

Cross-check NPI 1114363223 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-15.