Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lynn Marie Mason Chan, PT

Physical Therapist in Longview, WA · enumerated 2005.

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

National Provider Identifier

1023004025

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Registry record

Entity type Individual (Type 1)

Name Lynn Marie Mason Chan

Credential PT

Sex Female

Practice address 852 Commerce Ave, Longview, WA, 98632

Phone (360) 501-3750

Fax (360) 501-3755

Enumeration date Sep 25, 2005

Last updated in NPPES Jan 6, 2020

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT00003739 (WA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier	Type	State	Issuer
133605	Other	WA	LABOR & IND
182150	Medicaid	OR	-
650021893	Other	-	RR MEDICARE
8340820	Medicaid	WA	-

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 NPI 1023004025 active?

Yes, as of the latest NPPES snapshot, NPI 1023004025 is active (record last updated 2020-01-06).

How do I verify Lynn Chan's NPI record?

Cross-check NPI 1023004025 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 2020-01-06.