Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William J Fritsch Jr., MD

Internal Medicine Physician in Chattanooga, TN · enumerated 2006.

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

National Provider Identifier

1972554475

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name William J Fritsch Jr.

Credential MD

Sex Male

Practice address 2525 De Sales Avenue, Chattanooga, TN, 37404

Phone (423) 495-2620

Fax (423) 495-2625

Enumeration date May 12, 2006

Last updated in NPPES Apr 7, 2015

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 115677 (MO) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 52586 (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
144070	Other	MO	BCBS
458559	Other	-	HEALTHLINK
010065855	Other	-	RAILROAD MEDICARE
150941001	Medicaid	AR	-
64070030	Medicaid	KY	-
1972554475	Medicaid	IL	-
205881006	Medicaid	MO	-

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

Is NPI 1972554475 active?

Yes, as of the latest NPPES snapshot, NPI 1972554475 is active (record last updated 2015-04-07).

How do I verify William Fritsch's NPI record?

Cross-check NPI 1972554475 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-07.