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DR. WILLIAM ROLAND HUMMER JR. DDS
NPI 1982722377
Dentist - General Practice in San Leandro, CA

Active since March 26, 2007
1239 HARRISON ST, SAN LEANDRO, CA 94577(510) 351-5711(510) 351-5751 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William Roland Hummer Jr. Dds NPPES

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

DR. WILLIAM ROLAND HUMMER JR. DDS (NPI 1982722377) is an individual general practice provider in San Leandro, California, licensed in California (33780) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1982722377
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. WILLIAM ROLAND HUMMER JR.Credential: DDS
Location Address1239 HARRISON STSan Leandro, CA 94577-4515
Mailing Address1239 Harrison StSan Leandro, CA 94577-4515 · (510) 351-5711 · Fax (510) 351-5751
Phone(510) 351-5711
Fax(510) 351-5751
Sole ProprietorNo
Enumeration DateMarch 26, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1982722377 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in CA · 33780
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.
1239 HARRISON ST, San Leandro, CA 94577
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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 Hummer's NPI number?

The NPI number for William Hummer is 1982722377. It was assigned to this individual provider in the NPPES registry on March 26, 2007.

Where is William Hummer located?

William Hummer practices at 1239 Harrison St, San Leandro, CA 94577. The listed phone number is (510) 351-5711.

What is William Hummer'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 Hummer 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.