Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Clarkson, M.D.

Medical Oncology Physician in Pascagoula, MS · enumerated 2006.

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

National Provider Identifier

1285711978

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Registry record

Entity type Individual (Type 1)

Name Dr. James Clarkson

Credential M.D.

Sex Male

Practice address 2809 Denny Ave, Pascagoula, MS, 39581

Phone (228) 809-2057

Fax (228) 809-5255

Enumeration date Nov 1, 2006

Last updated in NPPES May 2, 2022

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License MS08687 (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
646000515	Other	MS	BLUE CROSS OF MS
646000515	Other	-	TRICARE
009984755	Other	AL	ALABAMA MEDICAID
00121081	Medicaid	MS	-
P00285469	Other	-	RAILROAD MEDICARE

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

What is the NPI number for James Clarkson?

The National Provider Identifier (NPI) for James Clarkson is 1285711978, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Clarkson practice?

The practice location on file with NPPES is in Pascagoula, 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 2022-05-02.