NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jeffrey D Dzik Od & Associates LLC

Optometrist in Princeton, IL · enumerated 2014 · authorized official Jeffrey Dzik, Owner.

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

National Provider Identifier

1598164626

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Jeffrey D Dzik Od & Associates LLC
Practice address 2111 Claude Bailey Pkwy, Princeton, IL, 61356
Phone (815) 879-3210
Fax (815) 879-8618
Enumeration date Aug 14, 2014
Last updated in NPPES Aug 14, 2014

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 046009859 (IL) Primary

Authorized official

Name Jeffrey Dzik
Title Owner
Phone (815) 879-3210

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

Where is Jeffrey D Dzik Od & Associates LLC located?
The practice location on file with NPPES is in Princeton, IL.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-08-14. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-14.