Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James C Griffin II, DO

Internal Medicine Physician in Powell, TN · enumerated 2006 · practices at Summit Medical Group, Pllc.

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

National Provider Identifier

1861438806

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Registry record

Entity type Individual (Type 1)

Name James C Griffin II

Credential DO

Sex Male

Practice address 7744 Conner Road, Powell, TN, 37849

Phone (865) 546-9751

Enumeration date Jun 20, 2006

Last updated in NPPES Oct 10, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01344 (TN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
110205241	Other	TN	RR MEDICARE PIN
3306141	Medicaid	TN	-

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 Griffin?

James Griffin is registered in NPPES with the primary taxonomy of Internal Medicine 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-10.