NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Winnetka Dental Group

Prosthodontics in Winnetka, IL · enumerated 2011 · authorized official Michael Czarkowski, Owner and Dentist.

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

National Provider Identifier

1073802948

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Winnetka Dental Group
Practice address 716 Elm St, Winnetka, IL, 60093
Fax (847) 441-7148
Enumeration date Mar 31, 2011
Last updated in NPPES Mar 31, 2011

Taxonomy & classification

1223P0700X Prosthodontics Dental Providers · License 019016803 (IL) Primary

Authorized official

Name Michael Czarkowski
Title Owner and Dentist

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 Winnetka Dental Group?
The NPI for Winnetka Dental Group is 1073802948, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Winnetka Dental Group?
NPPES lists Michael Czarkowski (Owner and Dentist) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-31.