Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GWEN MICHELE MARSH DC
NPI 1346293032
Chiropractor in Vancouver, WA

Q: What is Gwen Marsh's NPI number?

The NPI number for Gwen Marsh is 1346293032. It was assigned to this individual provider in the NPPES registry on May 17, 2006. The provider is also known as Dr. Gwen Michele Thornton Dc.

Q: What is Gwen Marsh's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Q: When was this NPI record last updated?

The NPPES record for Gwen Marsh was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 17, 2006

9413 NE HWY 99, STE 1, VANCOUVER, WA 98665(360) 574-7705(360) 574-3307 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Gwen Michele Marsh Dc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GWEN MICHELE MARSH DC (NPI 1346293032) is an individual chiropractor in Vancouver, Washington, licensed in Washington (CH00002029) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1346293032

Entity TypeIndividualFemale

Primary Taxonomy111N00000X

Provider Legal NameDR. GWEN MICHELE MARSHCredential: DC

Location Address9413 NE HWY 99, STE 1Vancouver, WA 98665-8947

Mailing Address9413 Ne Hwy 99, Ste 1Vancouver, WA 98665-8947 · (360) 574-7705 · Fax (360) 574-3307

Phone(360) 574-7705

Fax(360) 574-3307

Sole ProprietorNo

Enumeration DateMay 17, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1346293032 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers

Taxonomy Code111N00000X

License✔ Licensed in WA · CH00002029

Definition

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

9413 NE HWY 99, Vancouver, WA 98665

Open in Google Maps ↗

Other Names 1

Former Name (1)Dr. Gwen Michele Thornton Dc

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gwen Marsh's NPI number?

The NPI number for Gwen Marsh is 1346293032. It was assigned to this individual provider in the NPPES registry on May 17, 2006. The provider is also known as Dr. Gwen Michele Thornton Dc.

Where is Gwen Marsh located?

Gwen Marsh practices at 9413 NE Hwy 99 Ste 1, Vancouver, WA 98665. The listed phone number is (360) 574-7705.

What is Gwen Marsh's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

When was this NPI record last updated?

The NPPES record for Gwen Marsh was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.