Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM C HERZOG DMD
NPI 1336101245
Dentist - General Practice in Portland, OR

Q: What is William Herzog's NPI number?

The NPI number for William Herzog is 1336101245. It was assigned to this individual provider in the NPPES registry on April 5, 2006.

Q: What is William Herzog'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 William Herzog was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days 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 April 05, 2006

10340 SE DIVISION, SUITE 1, PORTLAND, OR 97266(503) 254-2068(503) 252-5820 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About William C Herzog Dmd NPPES

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

WILLIAM C HERZOG DMD (NPI 1336101245) is an individual general practice provider in Portland, Oregon, licensed in Oregon (4833) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1336101245

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameWILLIAM C HERZOGCredential: DMD

Location Address10340 SE DIVISION, SUITE 1Portland, OR 97266

Mailing Address10340 Se Division, Suite 1Portland, OR 97266 · (503) 254-2068 · Fax (503) 252-5820

Phone(503) 254-2068

Fax(503) 252-5820

Sole ProprietorNo

Enumeration DateApril 5, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1336101245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in OR · 4833

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.

10340 SE DIVISION, Portland, OR 97266

Open in Google Maps ↗

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 Herzog's NPI number?

The NPI number for William Herzog is 1336101245. It was assigned to this individual provider in the NPPES registry on April 5, 2006.

Where is William Herzog located?

William Herzog practices at 10340 SE Division Suite 1, Portland, OR 97266. The listed phone number is (503) 254-2068.

What is William Herzog's specialty?

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

When was this NPI record last updated?

The NPPES record for William Herzog was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days 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.