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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Grant Gordon Marius Thornley, M.A., L.M.F.T.A.

Marriage & Family Therapist in Bellevue, WA · enumerated 2014.

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

National Provider Identifier

1457772865

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Registry record

Entity type Individual (Type 1)
Name Mr. Grant Gordon Marius Thornley
Credential M.A., L.M.F.T.A.
Sex Male
Practice address 14216 Ne 21st St, Bellevue, WA, 98007
Phone (425) 653-4900
Fax (425) 653-4910
Enumeration date Jan 2, 2014
Last updated in NPPES Feb 7, 2017

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MG60560770 (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.

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Frequently asked questions

Is NPI 1457772865 active?
Yes, as of the latest NPPES snapshot, NPI 1457772865 is active (record last updated 2017-02-07).
How do I verify Grant Thornley's NPI record?
Cross-check NPI 1457772865 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 2017-02-07.