DR. WILLIAM ARTHUR BRENNAN D.D.S.
NPI 1013931823
Dentist - Periodontics in Green Bay, WI

Active since July 26, 2006
430 MAIN ST, GREEN BAY, WI 54301(920) 431-1745(920) 431-1715 Get Directions Write a Review

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

About Dr. William Arthur Brennan D.d.s. NPPES

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

DR. WILLIAM ARTHUR BRENNAN D.D.S. (NPI 1013931823) is an individual periodontics provider in Green Bay, Wisconsin, licensed in Wisconsin (0004656-015) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1013931823
Entity TypeIndividualMale
Primary Taxonomy1223P0300X
Provider Legal NameDR. WILLIAM ARTHUR BRENNANCredential: D.D.S.
Location Address430 MAIN STGreen Bay, WI 54301-5115
Mailing Address405 E Tallgrass DrAppleton, WI 54913-7502
Fax(920) 431-1715
Sole ProprietorNo
Enumeration DateJuly 26, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1013931823 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License Licensed in WI · 0004656-015
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
430 MAIN ST, Green Bay, WI 54301

Other Identifiers 1

Medicaid33725800WI

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dentist (General Practice)
430 MAIN ST
GREEN BAY, WI 54301
Dentist (Prosthodontics)
430 MAIN ST
GREEN BAY, WI 54301
Dentist (General Practice)
430 MAIN ST
GREEN BAY, WI 54301
Dentist (General Practice)
430 MAIN ST
GREEN BAY, WI 54301
Dentist
430 MAIN ST
GREEN BAY, WI 54301
Dentist
430 MAIN ST
GREEN BAY, WI 54301
Oral & Maxillofacial Surgery
430 MAIN ST
GREEN BAY, WI 54301
Dentist
430 MAIN ST
GREEN BAY, WI 54301

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 William Brennan's NPI number?

The NPI number for William Brennan is 1013931823. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is William Brennan located?

William Brennan practices at 430 Main St, Green Bay, WI 54301. The listed phone number is (920) 431-1745.

What is William Brennan's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

When was this NPI record last updated?

The NPPES record for William Brennan 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.