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LARSEN GASTROENTEROLOGY, PLLC
NPI 1174940282
Clinic/Center in Clarkston, WA

Active since March 26, 2014
625 6TH ST, CLARKSTON, WA 99403(509) 758-2200 Get Directions Write a Review

NPPES record last updated: January 9, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 19, 2022, Jan 28, 2020 (2 updates tracked since 2020).

About Larsen Gastroenterology, Pllc NPPES

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

LARSEN GASTROENTEROLOGY, PLLC (NPI 1174940282) is a healthcare organization registered as a clinic/center in Clarkston, Washington and active in the NPI registry since March 2014. The organization lists Michelle Marie Hastings, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1174940282
Entity TypeOrganization
Primary Taxonomy261Q00000X
Legal Business NameLARSEN GASTROENTEROLOGY, PLLC
Location Address625 6TH STClarkston, WA 99403-2010
Mailing Address625 6th StClarkston, WA 99403-2010 · (509) 758-2200
Phone(509) 758-2200
Organization SubpartNo
Authorized OfficialMichelle Marie HastingsOffice Manager · (509) 758-2200
Enumeration DateMarch 26, 2014
Last NPPES UpdateJanuary 9, 20242 updates tracked since enumeration
NPPES CertifiedJanuary 9, 2024
✔ NPI 1174940282 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities
Taxonomy Code261Q00000X
License✔ Licensed in WA · MD 00029346
Definition
A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).
625 6TH ST, Clarkston, WA 99403
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Other Identifiers 2

Medicaid2039081WA
Medicaid0027334ID

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Larsen Gastroenterology, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Larsen Gastroenterology, PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Murray Larsen, MD
Gastroenterology
NPI 1568451102
625 6TH ST
Clarkston, WA 99403
(509) 758-2200
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Larsen Gastroenterology, PLLC's NPI number?

The NPI number for Larsen Gastroenterology, PLLC is 1174940282. It was assigned to this organization in the NPPES registry on March 26, 2014.

Where is Larsen Gastroenterology, PLLC located?

Larsen Gastroenterology, PLLC is located at 625 6th St, Clarkston, WA 99403. The listed phone number is (509) 758-2200.

What is Larsen Gastroenterology, PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Is Larsen Gastroenterology, PLLC enrolled in Medicare?

Yes. Larsen Gastroenterology, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Larsen Gastroenterology, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Gastroenterology) reassigns their Medicare billing to Larsen Gastroenterology, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Larsen Gastroenterology, PLLC accept?

Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Larsen Gastroenterology, PLLC 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 Larsen Gastroenterology, PLLC was last updated on January 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.