NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Rita W. Larsen, RDN, CD

Registered Dietitian in Thiensville, WI · enumerated 2017 · practices at Pccw LLC.

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

National Provider Identifier

1215477096

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Registry record

Entity type Individual (Type 1)
Name Ms. Rita W. Larsen
Credential RDN, CD
Sex Female
Practice address Thiensville, WI, 53092
Enumeration date Feb 28, 2017
Last updated in NPPES Feb 28, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 1267 (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.

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Frequently asked questions

What is the NPI number for Rita Larsen?
The National Provider Identifier (NPI) for Rita Larsen is 1215477096, a Type 1 (individual) record in the CMS NPPES registry.
Where does Rita Larsen practice?
The practice location on file with NPPES is in Thiensville, WI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-28.