Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martin Finnegan, MD

Diagnostic Radiology Physician in Chattanooga, TN · enumerated 2006.

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

National Provider Identifier

1821025784

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Registry record

Entity type Individual (Type 1)

Name Martin Finnegan

Credential MD

Sex Male

Practice address 2333 Mccallie Ave, Chattanooga, TN, 37404

Phone (423) 493-1387

Fax (423) 553-1224

Enumeration date Jun 27, 2006

Last updated in NPPES Jan 5, 2011

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 35202 (TN) 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
000946382	Medicaid	GA	-
300131268	Other	TN	RR MCARE-ADR
4022315	Other	TN	PLAZA BC/BS OF TN
009918735	Medicaid	AL	-
4022310	Other	TN	ADR BC/BS OF TN
300131267	Other	TN	RR MCARE-CI

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

How do I verify Martin Finnegan's NPI record?

Cross-check NPI 1821025784 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821025784 active?

Yes, as of the latest NPPES snapshot, NPI 1821025784 is active (record last updated 2011-01-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-05.