Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine A Irish-Clardy, M.D.

Family Medicine Physician in Fort Smith, AR · enumerated 2005 · practices at University of Arkansas for Medical Sciences.

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

National Provider Identifier

1679577381

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Registry record

Entity type Individual (Type 1)

Name Katherine A Irish-Clardy

Credential M.D.

Sex Female

Practice address 1301 S E St, Fort Smith, AR, 72901

Phone (479) 785-2431

Fax (479) 494-7787

Enumeration date Jun 9, 2005

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License E-2393 (AR) 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
7889253	Other	-	AETNA
143782001	Medicaid	AR	-
2087945	Other	AR	UNITED HEALTHCARE
5L856	Other	AR	BLUE CROSS/BLUE SHIELD
08172336	Medicaid	MS	-
19334000001	Other	AR	QUALCHOICE
9642236001	Other	-	CIGNA
P00127019	Other	-	RAILROAD MEDICARE
100000610A	Medicaid	OK	-
1646351	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

Where does Katherine Irish-Clardy practice?

The practice location on file with NPPES is in Fort Smith, AR. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Katherine Irish-Clardy?

The National Provider Identifier (NPI) for Katherine Irish-Clardy is 1679577381, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.