Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Clarence Dunn, M.D.

Specialist in West Monroe, LA · enumerated 2006 · practices at Clarence Butch Dunn Jr MD A Medical Corporation.

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

National Provider Identifier

1770673568

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Clarence Dunn

Credential M.D.

Sex Male

Practice address West Monroe, LA, 71291

Phone (318) 322-2202

Fax (318) 322-9949

Enumeration date Oct 13, 2006

Last updated in NPPES Feb 2, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 021090 (LA) 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
721480315	Other	LA	FEDERAL TAX ID
100015461	Other	LA	RAILROAD MEDICARE #
1672513	Medicaid	LA	-

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

How do I verify Clarence Dunn's NPI record?

Cross-check NPI 1770673568 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1770673568 active?

Yes, as of the latest NPPES snapshot, NPI 1770673568 is active (record last updated 2012-02-02).

Other providers at this practice address

Browse all →

Clarence Butch Dunn Jr MD A Medical Corporation Gastroenterology Physician · West Monroe, LA NPI 1386803773

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-02.