Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sean Thomas Atteridge, DO

Family Medicine Physician in Tumwater, WA · enumerated 2006 · practices at Tumwater Family Practice Clinic.

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

National Provider Identifier

1326082520

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Registry record

Entity type Individual (Type 1)

Name Sean Thomas Atteridge

Credential DO

Sex Male

Practice address 150 Dennis St Sw, Tumwater, WA, 98501

Phone (360) 754-6367

Fax (360) 754-6429

Enumeration date Jun 16, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OP00000803 (WA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
1016559	Medicaid	WA	-
77101	Other	WA	LABOR INDUSTRIES

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

How do I verify Sean Atteridge's NPI record?

Cross-check NPI 1326082520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326082520 active?

Yes, as of the latest NPPES snapshot, NPI 1326082520 is active (record last updated 2007-07-08).

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