NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew James Karban, DDS

Dentist in Oconto, WI · enumerated 2007.

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

National Provider Identifier

1396967253

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Matthew James Karban
Credential DDS
Sex Male
Practice address 500 Superior Avenue, Oconto, WI, 54153
Fax (920) 834-5068
Enumeration date May 2, 2007
Last updated in NPPES May 26, 2015

Taxonomy & licenses

122300000X Dentist Dental Providers · License 5001526 (WI) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier Type State Issuer
33546100 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 NPI 1396967253 active?
Yes, as of the latest NPPES snapshot, NPI 1396967253 is active (record last updated 2015-05-26).
How do I verify Matthew Karban's NPI record?
Cross-check NPI 1396967253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-26.