MR. GARY SCOTT SIMS S.U.D.P.
NPI 1538370960
Counselor - Addiction (Substance Use Disorder) in Oakville, WA

Q: What is Gary Sims's NPI number?

The NPI number for Gary Sims is 1538370960. It was assigned to this individual provider in the NPPES registry on May 25, 2007.

Q: What is Gary Sims's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for Gary Sims was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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 25, 2007

PO BOX 508, OAKVILLE, WA 98568(360) 709-1661(707) 274-4628 Get Directions Write a Review

NPPES record last updated: July 24, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 21, 2022, Aug 23, 2022 (2 updates tracked since 2022).

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About Mr. Gary Scott Sims S.u.d.p. NPPES

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

MR. GARY SCOTT SIMS S.U.D.P. (NPI 1538370960) is an individual addiction (substance use disorder) provider in Oakville, Washington, licensed in Washington (CP00001819) and active in the NPI registry since May 2007. He maintains a secondary practice location in Vancouver.

NPPES Registry Identity

NPI1538370960

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameMR. GARY SCOTT SIMSCredential: S.U.D.P.

Location AddressPO BOX 508Oakville, WA 98568-0508

Mailing AddressPo Box 508Oakville, WA 98568-0508 · (360) 360-7091 · Fax (707) 274-4628

Phone(360) 709-1661

Fax(707) 274-4628

Sole ProprietorNo

Enumeration DateMay 25, 2007

Last NPPES UpdateJuly 24, 20252 updates tracked since enumeration

NPPES CertifiedJuly 24, 2025

✔ NPI 1538370960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in WA · CP00001819

PO BOX 508, Oakville, WA 98568

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Secondary Practice Location 1

Location 17017 NE Highway 99 Ste 114Vancouver, WA 98665-0554 · Phone (360) 694-7484 · Fax (360) 694-7479

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Kaiser Permanente.Insurance ›

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 Gary Sims's NPI number?

The NPI number for Gary Sims is 1538370960. It was assigned to this individual provider in the NPPES registry on May 25, 2007.

Where is Gary Sims located?

Gary Sims practices at PO Box 508, Oakville, WA 98568. The listed phone number is (360) 709-1661.

What is Gary Sims's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

What insurance does Gary Sims accept?

Health plans from Kaiser Permanente list Gary Sims as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gary Sims was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.