DR. JOHN MAZEIKA DDS
NPI 1871667261
Dentist - General Practice in Oswego, IL

Q: What is John Mazeika's NPI number?

The NPI number for John Mazeika is 1871667261. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Q: What is John Mazeika's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for John Mazeika was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 20, 2006

8 E MERCHANTS DR, OSWEGO, IL 60543(630) 892-5577 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. John Mazeika Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN MAZEIKA DDS (NPI 1871667261) is an individual general practice provider in Oswego, Illinois and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1871667261

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. JOHN MAZEIKACredential: DDS

Location Address8 E MERCHANTS DROswego, IL 60543-9454

Mailing Address8510 Gleneyre RdDarien, IL 60561-5324 · (630) 985-5240

Phone(630) 892-5577

Sole ProprietorYes

Enumeration DateNovember 20, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1871667261 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

8 E MERCHANTS DR, Oswego, IL 60543

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Humana, Renaissance Dental.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Mazeika's NPI number?

The NPI number for John Mazeika is 1871667261. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Where is John Mazeika located?

John Mazeika practices at 8 E Merchants Dr, Oswego, IL 60543. The listed phone number is (630) 892-5577.

What is John Mazeika's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

What insurance does John Mazeika accept?

Health plans from Humana and Renaissance Dental list John Mazeika as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Mazeika was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.