NPI Portal NPI Lookup & Verification

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

Dr. Stephen R. Wilt, M.D., PH.D.

Radiation Oncology Physician in Lafayette, LA · enumerated 2006.

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

National Provider Identifier

1528082443

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Registry record

Entity type Individual (Type 1)
Name Dr. Stephen R. Wilt
Credential M.D., PH.D.
Sex Male
Practice address Lafayette, LA, 70508
Fax (337) 769-8661
Enumeration date Jul 26, 2006
Last updated in NPPES Jun 29, 2020

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

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 10351R (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
10351R Other LA STATE MEDICAL LICENSE
1986739 Medicaid LA -
PTAN 381631ZLAC Other LA LINKED TO GROUP PTAN 381439 EFFECTIVE 10-31-14
5DX68 Other LA ONCOLOGICS LLC GROUP PTAN MEDICARE EFFECTIVE 05/19/2012
5U307DX68 Other LA STEPHEN WILT PTAN MEDICARE EFFECTIVE 05/19/2012

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 Stephen Wilt?
Stephen Wilt is registered in NPPES with the primary taxonomy of Radiation Oncology 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 2020-06-29.