Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Calvin Christopher Brown, M.D.

Ophthalmology Physician in Olive Branch, MS · enumerated 2007.

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

National Provider Identifier

1578761011

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Registry record

Entity type Individual (Type 1)

Name Dr. Calvin Christopher Brown

Credential M.D.

Sex Male

Practice address 6760 Goodman Rd Ste 125, Olive Branch, MS, 38654

Phone (662) 782-5404

Fax (662) 405-0345

Enumeration date Jul 6, 2007

Last updated in NPPES Jan 28, 2025

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License E-7330 (AR) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License P5039 (TX) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD0000047139 (TN) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License E7330 (AR) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 47139 (TN) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 21670 (MS) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 21670 (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
1578761011	Medicaid	MO	-
03526827	Medicaid	MS	-
1525893	Medicaid	TN	-
323924601	Medicaid	TX	-
P00975599	Other	TN	PALMETTO RR MEDICARE
188120001	Medicaid	AR	-

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 Calvin Brown?

Calvin Brown is registered in NPPES with the primary taxonomy of Ophthalmology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Mid-South Retina Associates, LLC Ophthalmology Physician · Olive Branch, MS NPI 1639891088 Brown Family Retina Retina Specialist (Ophthalmology) Physician · Olive Branch, MS NPI 1255144044

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-28.