Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Michael Sizemore Jr., MD

Infectious Disease Physician in Chattanooga, TN · enumerated 2005.

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

National Provider Identifier

1124021340

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Registry record

Entity type Individual (Type 1)

Name Dr. James Michael Sizemore Jr.

Credential MD

Sex Male

Practice address 1000 East Third Street, Suite 302, Chattanooga, TN, 37403

Phone (423) 664-5165

Fax (423) 664-5164

Enumeration date May 23, 2005

Last updated in NPPES Dec 30, 2013

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 040177 (TN) Primary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 060877 (GA) 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
150360938A	Medicaid	GA	-
100049672	Other	TN	PHP
1738158	Medicaid	LA	-
1891884292	Other	-	GROUP N P I
3333248	Medicaid	TN	-
5902601	Medicaid	NC	-
0480277	Other	TN	CIGNA
0007197040	Other	TN	AETNA
2181280	Other	TN	FIRST HEALTH
4111600	Other	TN	BLUE CROSS

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 James Sizemore's NPI record?

Cross-check NPI 1124021340 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124021340 active?

Yes, as of the latest NPPES snapshot, NPI 1124021340 is active (record last updated 2013-12-30).

Other providers at this practice address

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Adam Soufleris Infectious Disease Physician · Chattanooga, TN NPI 1184687378 Stephen Hawkins Infectious Disease Physician · Chattanooga, TN NPI 1841253754 Chattanooga Cares, Inc. Federally Qualified Health Center (FQHC) · Chattanooga, TN NPI 1457368524 Id Group, Pllc Specialist · Chattanooga, TN NPI 1891884292

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-30.