Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Gregory Powell, MD

Endocrinology, Diabetes & Metabolism Physician in Hattiesburg, MS · enumerated 2006.

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

National Provider Identifier

1164523932

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Registry record

Entity type Individual (Type 1)

Name James Gregory Powell

Credential MD

Sex Male

Practice address 5909 Us Highway 49, Suite 30, Hattiesburg, MS, 39401

Phone (601) 296-2780

Fax (601) 296-2781

Enumeration date Sep 26, 2006

Last updated in NPPES Jul 20, 2020

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 17911 (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
640507572TB	Other	MS	AMERICAN ADMIN GROUP
07358051	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is James Powell?

James Powell is registered in NPPES with the primary taxonomy of Endocrinology, Diabetes & Metabolism Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

Richard Galloway Endocrinology, Diabetes & Metabolism Physician · Hattiesburg, MS NPI 1376553222 Daniel Mccall Endocrinology, Diabetes & Metabolism Physician · Hattiesburg, MS NPI 1871694646

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-20.