NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John C Matteucci Jr., M.D.

Urology Physician in Kenosha, WI · enumerated 2006.

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

National Provider Identifier

1558456749

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John C Matteucci Jr.
Credential M.D.
Sex Male
Practice address 6127 Green Bay Road, Suite 600, Kenosha, WI, 53142
Fax (262) 653-9229
Enumeration date Oct 4, 2006
Last updated in NPPES Apr 15, 2024

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 01083818A (IN) Secondary
208800000X Urology Physician Allopathic & Osteopathic Physicians · License 38866 (WI) 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
300037445 Medicaid IN -
32467300 Medicaid WI -

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

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 John Matteucci?
John Matteucci is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-15.