NPI Portal NPI Lookup & Verification

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

Margaret Jarvis, RD

Registered Dietitian in Saltillo, MS · enumerated 2022.

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

National Provider Identifier

1346984564

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Registry record

Entity type Individual (Type 1)
Name Margaret Jarvis
Credential RD
Sex Female
Practice address Saltillo, MS, 38866
Fax (844) 269-6704
Enumeration date Apr 25, 2022
Last updated in NPPES Apr 25, 2022

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 D-1884 (MS) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

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 Margaret Jarvis?
The National Provider Identifier (NPI) for Margaret Jarvis is 1346984564, a Type 1 (individual) record in the CMS NPPES registry.
Where does Margaret Jarvis practice?
The practice location on file with NPPES is in Saltillo, MS. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-25.