Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas C Mcdonald, MD

Internal Medicine Physician in Lexington, TN · enumerated 2006.

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

National Provider Identifier

1124098488

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Registry record

Entity type Individual (Type 1)

Name Thomas C Mcdonald

Credential MD

Sex Male

Practice address 200 W Church St, Lexington, TN, 38351

Phone (731) 968-3646

Fax (731) 968-1870

Enumeration date Jan 26, 2006

Last updated in NPPES Jun 14, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 23828 (TN) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 23838 (TN) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 23828 (TN) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 23828 (TN) Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 23838 (TN) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 23828 (TN) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 23828 (TN) Secondary

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
4118454	Other	TN	BCBS

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 specialty is Thomas Mcdonald?

Thomas Mcdonald 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 2024-06-14.