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DR. WILLIAM R. GIANNI DDS
NPI 1093823080
Dentist in Concord, CA

Active since August 29, 2006
2975 TREAT BLVD BLDG D, CONCORD, CA 94518(925) 788-5710 Get Directions Write a Review

NPPES record last updated: February 4, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. William R. Gianni Dds NPPES

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

DR. WILLIAM R. GIANNI DDS (NPI 1093823080) is an individual dentist in Concord, California, licensed in California (43695) and active in the NPI registry since August 2006. He maintains a secondary practice location in Berkeley.

NPPES Registry Identity

NPI1093823080
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameDR. WILLIAM R. GIANNICredential: DDS
Location Address2975 TREAT BLVD BLDG DConcord, CA 94518-3601
Mailing Address2141 Dena DrConcord, CA 94519-2222 · (510) 848-3143 · Fax (510) 848-2522
Phone(925) 788-5710
Sole ProprietorYes
Enumeration DateAugust 29, 2006
Last NPPES UpdateFebruary 4, 2025
NPPES CertifiedFebruary 4, 2025
✔ NPI 1093823080 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
Licenses✔ Licensed in CA · 43695✔ Licensed in CA · 23247
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
2975 TREAT BLVD BLDG D, Concord, CA 94518
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Secondary Practice Location 1

Location 12999 Regent St, suite 714Berkeley, CA 94705-2146 · Phone (510) 848-3143 · Fax (510) 848-2522

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 Gianni's NPI number?

The NPI number for William Gianni is 1093823080. It was assigned to this individual provider in the NPPES registry on August 29, 2006.

Where is William Gianni located?

William Gianni practices at 2975 Treat Blvd Bldg D, Concord, CA 94518. The listed phone number is (925) 788-5710.

What is William Gianni's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

When was this NPI record last updated?

The NPPES record for William Gianni was last updated on February 4, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.