Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Alden Johnson III, M.D.

Q: What is the NPI number for John Johnson?

The National Provider Identifier (NPI) for John Johnson is 1902860372, a Type 1 (individual) record in the CMS NPPES registry.

Surgery Physician in Hattiesburg, MS · enumerated 2006.

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

National Provider Identifier

1902860372

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Registry record

Entity type Individual (Type 1)

Name John Alden Johnson III

Credential M.D.

Sex Male

Practice address 415 S 28th Ave, Hattiesburg, MS, 39401

Phone (601) 268-5660

Fax (601) 268-5759

Enumeration date Apr 13, 2006

Last updated in NPPES Aug 3, 2020

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License R4429 (AR) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 12130 (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
4344773	Other	MS	CIGNA
6027328	Other	MS	HEALTHSPRINGS
04431870	Medicaid	MS	-
123146001	Medicaid	AR	-
4594666	Other	MS	AETNA

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 is the NPI number for John Johnson?

The National Provider Identifier (NPI) for John Johnson is 1902860372, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Johnson practice?

The practice location on file with NPPES is in Hattiesburg, MS. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-03.