DR. JOHN GEORGE MASAK D.D.S.
NPI 1568516169
Dentist - General Practice in Appleton, WI

Q: What is John Masak's NPI number?

The NPI number for John Masak is 1568516169. It was assigned to this individual provider in the NPPES registry on January 22, 2007.

Q: What is John Masak'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 Masak 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 January 22, 2007

3305 N BALLARD RD STE D, APPLETON, WI 54911(920) 733-5607(920) 733-2010 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. John George Masak D.d.s. NPPES

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

DR. JOHN GEORGE MASAK D.D.S. (NPI 1568516169) is an individual general practice provider in Appleton, Wisconsin, licensed in Wisconsin (3741) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1568516169

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. JOHN GEORGE MASAKCredential: D.D.S.

Location Address3305 N BALLARD RD STE DAppleton, WI 54911-9001

Mailing Address3305 N Ballard Rd Ste DAppleton, WI 54911-9001 · (920) 733-5607 · Fax (920) 733-2010

Phone(920) 733-5607

Fax(920) 733-2010

Sole ProprietorNo

Enumeration DateJanuary 22, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1568516169 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in WI · 3741

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.

3305 N BALLARD RD STE D, Appleton, WI 54911

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Delta Dental of Wisconsin, Inc..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 Masak's NPI number?

The NPI number for John Masak is 1568516169. It was assigned to this individual provider in the NPPES registry on January 22, 2007.

Where is John Masak located?

John Masak practices at 3305 N Ballard Rd Ste D, Appleton, WI 54911. The listed phone number is (920) 733-5607.

What is John Masak's specialty?

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

What insurance does John Masak accept?

Health plans from Delta Dental of Wisconsin, Inc. list John Masak 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 Masak 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.