WILLIAMTENNANTDDS AND WILLIAMGIANNIDDS
NPI 1023283025
Dentist - General Practice in Berkeley, CA

Q: What is Williamtennantdds/Williamgiannidds's NPI number?

The NPI number for Williamtennantdds/Williamgiannidds is 1023283025. It was assigned to this organization in the NPPES registry on April 30, 2008. The provider is also known as Williamtennantdds And Williamgiannidds.

Q: What is Williamtennantdds/Williamgiannidds's specialty?

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

Active since April 30, 2008

2999 REGENT ST, SUITE 714, BERKELEY, CA 94705(510) 848-3143(510) 848-2522 Get Directions Write a Review

NPPES record last updated: April 30, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Williamtennantdds And Williamgiannidds NPPES

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

WILLIAMTENNANTDDS AND WILLIAMGIANNIDDS (NPI 1023283025) is a healthcare organization registered as a general practice in Berkeley, California and active in the NPI registry since April 2008. The organization lists William R Gianni, Partner, as its authorized official.

NPPES Registry Identity

NPI1023283025

Entity TypeOrganization

Primary Taxonomy1223G0001X

Legal Business NameWILLIAMTENNANTDDS/WILLIAMGIANNIDDS

Location Address2999 REGENT ST, SUITE 714Berkeley, CA 94705-2146

Mailing Address2999 Regent St, Suite 714Berkeley, CA 94705-2146 · (510) 848-3143 · Fax (510) 848-2522

Phone(510) 848-3143

Fax(510) 848-2522

Organization SubpartNo

Authorized OfficialWilliam R GianniPartner · (510) 848-3143

Enumeration DateApril 30, 2008

✔ NPI 1023283025 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 · 23247

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.

2999 REGENT ST, Berkeley, CA 94705

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Other Names 1

Other NameWilliamtennantdds And Williamgiannidds

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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.

DR. GORDON TANG M.D.

Neurological Surgery

2999 REGENT ST, SUITE 715
BERKELEY, CA 94705

Alameda County (510) 841-8700

DR. WARREN I DOTZ M.D.

Dermatology

2999 REGENT ST, SUITE 300
BERKELEY, CA 94705

Alameda County (510) 540-5010

EAST BAY NEUROSURGERY AND SPINE, A MEDICAL CORPORATION

Neurological Surgery

2999 REGENT ST, SUITE 715
BERKELEY, CA 94705

Alameda County (510) 841-8700

DAVID L CUMMINS MD

Orthopaedic Surgery

2999 REGENT ST, 225
BERKELEY, CA 94705

Alameda County (510) 704-7760

DR. JUDY SCHWARTZ MD

Psychiatry & Neurology (Psychiatry)

2999 REGENT ST, SUITE 512
BERKELEY, CA 94705

Alameda County (510) 644-0555

AMY M. HUIBONHOA, M.D. ,INC

Preferred Provider Organization

2999 REGENT ST, SUITE 201
BERKELEY, CA 94705

Alameda County (510) 204-0971

DR. KARIN SCHIFFMAN M.D.

Pediatrics

2999 REGENT ST, SUITE 524
BERKELEY, CA 94705

Alameda County (510) 845-0300

GAYE DERUSSO P.A.

Physician Assistant (Surgical)

2999 REGENT ST, STE 225
BERKELEY, CA 94705

Alameda County (510) 704-7760

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 Williamtennantdds/Williamgiannidds's NPI number?

The NPI number for Williamtennantdds/Williamgiannidds is 1023283025. It was assigned to this organization in the NPPES registry on April 30, 2008. The provider is also known as Williamtennantdds And Williamgiannidds.

Where is Williamtennantdds/Williamgiannidds located?

Williamtennantdds/Williamgiannidds is located at 2999 Regent St Suite 714, Berkeley, CA 94705. The listed phone number is (510) 848-3143.

What is Williamtennantdds/Williamgiannidds'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 Williamtennantdds/Williamgiannidds was last updated on April 30, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.