NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Margaret Davis, MS,RD,LDN,FADA,CDE

Registered Dietitian in Brewster, MA · enumerated 2006 · practices at Live Nutrition Inc.

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

National Provider Identifier

1033160080

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Registry record

Entity type Individual (Type 1)
Name Mrs. Margaret Davis
Credential MS,RD,LDN,FADA,CDE
Sex Female
Practice address 26 Wampum Dr, Brewster, MA, 02631
Fax (508) 896-3399
Enumeration date May 15, 2006
Last updated in NPPES Apr 27, 2012

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 445 (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Margaret Davis?
Margaret Davis is registered in NPPES with the primary taxonomy of Registered Dietitian. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-27.