NPI Portal NPI Lookup & Verification

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

Dr. Avit John Gremillion III, MD

Ophthalmology Physician in Biloxi, MS · enumerated 2005 · practices at Vitreoretinal Eye Center, PC.

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

National Provider Identifier

1861479529

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Registry record

Entity type Individual (Type 1)
Name Dr. Avit John Gremillion III
Credential MD
Sex Male
Practice address Biloxi, MS, 39532
Fax (833) 849-9899
Enumeration date Dec 23, 2005
Last updated in NPPES Dec 5, 2023

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

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 023984 (LA) Secondary
207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 023984 (LA) Secondary
207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 17239 (MS) Secondary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 17239 (MS) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
1486787 Medicaid LA -
180000355 Other MS MEDICARE RAILROAD
05109745 Medicaid MS -
7812033 Other MS AETNA
05109145 Medicaid MS -

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 NPI 1861479529 active?
Yes, as of the latest NPPES snapshot, NPI 1861479529 is active (record last updated 2023-12-05).
How do I verify Avit Gremillion's NPI record?
Cross-check NPI 1861479529 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-05.