Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marcia J. Hays, M.S., R.D., CDCES

Registered Dietitian in Jackson, MS · enumerated 2012.

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

National Provider Identifier

1982956371

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Registry record

Entity type Individual (Type 1)

Name Marcia J. Hays

Credential M.S., R.D., CDCES

Sex Female

Practice address 1134 Winter St, Jackson, MS, 39204

Phone (601) 405-7415

Enumeration date Oct 9, 2012

Last updated in NPPES Apr 28, 2023

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers Secondary

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License D1558 (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

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.

What specialty is Marcia Hays?

Marcia Hays 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.

Other providers at this practice address

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Michael Johnson Family Medicine Physician · Jackson, MS NPI 1144281262 Central Mississippi Health Services, Inc Federally Qualified Health Center (FQHC) · Jackson, MS NPI 1730120502 Edith Smith Rayford Obstetrics & Gynecology Physician · Jackson, MS NPI 1154359842 Zina Lee Internal Medicine Physician · Jackson, MS NPI 1134158579 Robert Smith Family Medicine Physician · Jackson, MS NPI 1285663591 Obie Mcnair Internal Medicine Physician · Jackson, MS NPI 1851321384 Ericka Micou Community Health Nurse Practitioner · Jackson, MS NPI 1568598027 Latoya Johnson Physician Assistant · Jackson, MS NPI 1427458819

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-28.