THE PUBLIC RECORD · NPPES / CMS

William On, DDS

Endodontics · Palo Alto, CA

Compiled from the NPPES public registry (CMS). Data as of 2026-06-08.

This provider is not affiliated with Gale. This listing is compiled from the NPPES public registry (CMS).

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The record

NPI1013562586

In the register since2019

CredentialDDS

Listed specialtyEndodontics

Practice typeOrganization-affiliated

CityPalo Alto

StateCA

Telephone(650) 328-3636

The federal register has carried this listing since 2019. It records a name, a credential, a city, a telephone number. It does not record services, hours, or what a first visit costs — the registry was never built to.

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