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

Mr. Steven J Clark, MD

Q: What is the NPI number for Steven Clark?

The National Provider Identifier (NPI) for Steven Clark is 1154353720, a Type 1 (individual) record in the CMS NPPES registry.

Plastic and Reconstructive Surgery Physician in Mount Vernon, IL · enumerated 2006.

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

National Provider Identifier

1154353720

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Registry record

Entity type Individual (Type 1)

Name Mr. Steven J Clark

Credential MD

Sex Male

Practice address Mount Vernon, IL, 62864

Phone (618) 899-3980

Fax (618) 899-4793

Enumeration date Jul 6, 2006

Last updated in NPPES Oct 21, 2013

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

Taxonomy & licenses

2086S0122X Plastic and Reconstructive Surgery Physician Allopathic & Osteopathic Physicians · License 036086955 (IL) 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
257001700	Medicaid	FL	-

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

What is the NPI number for Steven Clark?

The National Provider Identifier (NPI) for Steven Clark is 1154353720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Steven Clark practice?

The practice location on file with NPPES is in Mount Vernon, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-21.