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

Marcia Ann Mills, RD, LDN

Registered Dietitian in Chapel Hill, NC · enumerated 2008.

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

National Provider Identifier

1770748824

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Registry record

Entity type Individual (Type 1)

Name Marcia Ann Mills

Credential RD, LDN

Sex Female

Practice address Chapel Hill, NC, 27514

Phone (919) 967-9400

Fax (919) 408-0643

Enumeration date Jul 28, 2008

Last updated in NPPES Jul 28, 2008

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 L000035 (NC) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

Other identifiers

Identifier	Type	State	Issuer
L000035	Other	NC	LDN NUMBER
00374981	Other	NC	RD NUMBER

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 Marcia Mills?

Marcia Mills 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 2008-07-28.