Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marissa Jo Larson

Physical Therapist in Menomonie, WI · enumerated 2023.

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

National Provider Identifier

1871368589

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Registry record

Entity type Individual (Type 1)

Name Marissa Jo Larson

Sex Female

Practice address 2321 Stout Rd, Menomonie, WI, 54751

Phone (715) 838-5222

Enumeration date Nov 22, 2023

Last updated in NPPES Sep 14, 2026

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 12497-24 (WI) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1871368589 active?

Yes, as of the latest NPPES snapshot, NPI 1871368589 is active (record last updated 2026-09-14).

How do I verify Marissa Larson's NPI record?

Cross-check NPI 1871368589 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 2026-09-14.