MR. MATTHEW WAYNE LARSEN RDN, CDE
NPI 1184953739
Dietitian, Registered in Kalispell, MT

Q: What is Matthew Larsen's NPI number?

The NPI number for Matthew Larsen is 1184953739. It was assigned to this individual provider in the NPPES registry on December 10, 2009.

Q: What is Matthew Larsen's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Larsen was last updated on March 19, 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.

Active since December 10, 2009

210 SUNNYVIEW LN STE 103, KALISPELL, MT 59901(406) 257-3872(406) 758-7077 Get Directions Write a Review

NPPES record last updated: March 19, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 26, 2020, Aug 3, 2018 (2 updates tracked since 2018).

On this page

About Mr. Matthew Wayne Larsen Rdn, Cde NPPES

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

MR. MATTHEW WAYNE LARSEN RDN, CDE (NPI 1184953739) is an individual dietitian, registered in Kalispell, Montana, licensed in Montana (59321) and active in the NPI registry since December 2009. He maintains a secondary practice location in Kalispell.

NPPES Registry Identity

NPI1184953739

Entity TypeIndividualMale

Primary Taxonomy133V00000X

Provider Legal NameMR. MATTHEW WAYNE LARSENCredential: RDN, CDE

Location Address210 SUNNYVIEW LN STE 103Kalispell, MT 59901

Mailing Address210 Sunnyview Ln Ste 103Kalispell, MT 59901-3128 · (406) 257-3872 · Fax (406) 758-7077

Phone(406) 257-3872

Fax(406) 758-7077

Sole ProprietorNo

Enumeration DateDecember 10, 2009

Last NPPES UpdateMarch 19, 20242 updates tracked since enumeration

NPPES CertifiedMarch 19, 2024

✔ NPI 1184953739 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers

Taxonomy Code133V00000X

License✔ Licensed in MT · 59321

Definition

A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.

210 SUNNYVIEW LN STE 103, Kalispell, MT 59901

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Secondary Practice Location 1

Location 11287 Burns WayKalispell, MT 59901-3109 · Phone (406) 752-8120 · Fax (406) 752-8134

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Matthew Wayne Larsen Rdn, Cde is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Matthew Larsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kalispell Regional Medical Center Inc

Same address

Advanced Practice Midwife

210 SUNNYVIEW LANE, SUITE 101
Kalispell, MT 59901

Reassigned Medicare billing, Montana enrollment
483 clinicians in this Medicare group

NPI 1558506873 (406) 751-8009

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

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KALISPELL REGIONAL MEDICAL CENTER, INC

Obstetrics & Gynecology (Maternal & Fetal Medicine)

210 SUNNYVIEW LN STE 103
KALISPELL, MT 59901

Flathead County (406) 257-3872

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 Matthew Larsen's NPI number?

The NPI number for Matthew Larsen is 1184953739. It was assigned to this individual provider in the NPPES registry on December 10, 2009.

Where is Matthew Larsen located?

Matthew Larsen practices at 210 Sunnyview Ln Ste 103, Kalispell, MT 59901. The listed phone number is (406) 257-3872.

What is Matthew Larsen's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Matthew Larsen enrolled in Medicare?

Yes. Matthew Larsen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Matthew Larsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Larsen reassigns Medicare benefits to Kalispell Regional Medical Center Inc (Kalispell, MT). The 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 Matthew Larsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Larsen accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and PacificSource Health Plans list Matthew Larsen 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 Matthew Larsen was last updated on March 19, 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.