Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nancy S Clark, M.D.

Vascular Surgery Physician in Louisville, KY · enumerated 2006.

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

National Provider Identifier

1114986023

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Registry record

Entity type Individual (Type 1)

Name Nancy S Clark

Credential M.D.

Sex Female

Practice address 401 E Chestnut St Unit 710, Louisville, KY, 40202

Phone (502) 583-8303

Enumeration date Mar 20, 2006

Last updated in NPPES Jan 25, 2021

Taxonomy & licenses

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 50539 (KY) 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
7100468230	Medicaid	KY	-
95QW	Other	MD	BLUE MD
413914300	Medicaid	MD	-
88260001	Other	DC	BLUE DC

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Nancy Clark?

Nancy Clark is registered in NPPES with the primary taxonomy of Vascular Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-25.