WILLIAM COX DENTAL CORPORATION
NPI 1689616013
Dentist in Hayward, CA

Q: What is William Cox Dental Corporation's NPI number?

The NPI number for William Cox Dental Corporation is 1689616013. It was assigned to this organization in the NPPES registry on June 11, 2006. The provider is doing business as Gentle Dental Hayward.

Q: What is William Cox Dental Corporation's specialty?

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

Active since June 11, 2006

24239 HESPERIAN BLVD, HAYWARD, CA 94545(510) 785-2587(510) 786-2960 Get Directions Write a Review

NPPES record last updated: August 22, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 8, 2018, Sep 30, 2016 (2 updates tracked since 2016).

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About William Cox Dental Corporation NPPES

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

WILLIAM COX DENTAL CORPORATION (NPI 1689616013), doing business as Gentle Dental Hayward, is a healthcare organization registered as a dentist in Hayward, California and active in the NPI registry since June 2006. The organization lists William J Cox, Pc Holder/owner, as its authorized official.

NPPES Registry Identity

NPI1689616013

Entity TypeOrganization

Primary Taxonomy122300000X

Legal Business NameWILLIAM COX DENTAL CORPORATION

Location Address24239 HESPERIAN BLVDHayward, CA 94545-1526

Mailing AddressPo Box 872710Vancouver, WA 98687-2710 · (360) 869-7645 · Fax (877) 725-7443

Phone(510) 785-2587

Fax(510) 786-2960

Organization SubpartNo

Authorized OfficialWilliam J CoxPc Holder/owner · (800) 684-6440

Enumeration DateJune 11, 2006

Last NPPES UpdateAugust 22, 20252 updates tracked since enumeration

NPPES CertifiedAugust 22, 2025

✔ NPI 1689616013 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers

Taxonomy Code122300000X

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.

24239 HESPERIAN BLVD, Hayward, CA 94545

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Other Names 1

Doing Business AsGentle Dental Hayward

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Other Providers at the Same Location NPPES 2

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

LILY PATIL DMD

Dentist (General Practice)

24239 HESPERIAN BLVD
HAYWARD, CA 94545

Alameda County (510) 786-2587

CAMERON EDWARDS DDS

Dentist (General Practice)

24239 HESPERIAN BLVD
HAYWARD, CA 94545

Alameda County (510) 786-2587

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 Cox Dental Corporation's NPI number?

The NPI number for William Cox Dental Corporation is 1689616013. It was assigned to this organization in the NPPES registry on June 11, 2006. The provider is doing business as Gentle Dental Hayward.

Where is William Cox Dental Corporation located?

William Cox Dental Corporation is located at 24239 Hesperian Blvd, Hayward, CA 94545. The listed phone number is (510) 785-2587.

What is William Cox Dental Corporation's specialty?

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

What insurance does William Cox Dental Corporation accept?

Health plans from UnitedHealthcare list William Cox Dental Corporation as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Cox Dental Corporation was last updated on August 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.