ROBERT MICHAEL ONEILL DDS
NPI 1659593366
Dentist - General Practice in Castro Valley, CA

Q: What is Robert Oneill's NPI number?

The NPI number for Robert Oneill is 1659593366. It was assigned to this individual provider in the NPPES registry on May 3, 2007.

Q: What is Robert Oneill's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Robert Oneill 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.

Active since May 03, 2007

20054 LAKE CHABOT RD, CASTRO VALLEY, CA 94546(510) 886-1231(510) 886-4736 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Robert Michael Oneill Dds NPPES

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

ROBERT MICHAEL ONEILL DDS (NPI 1659593366) is an individual general practice provider in Castro Valley, California, licensed in California (21627) and active in the NPI registry since May 2007.

NPPES Registry Identity

NPI1659593366

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameROBERT MICHAEL ONEILLCredential: DDS

Location Address20054 LAKE CHABOT RDCastro Valley, CA 94546-5304

Mailing Address20054 Lake Chabot RdCastro Valley, CA 94546-5304 · (510) 886-1231 · Fax (510) 886-4736

Phone(510) 886-1231

Fax(510) 886-4736

Sole ProprietorYes

Enumeration DateMay 3, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1659593366 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 · 21627

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.

20054 LAKE CHABOT RD, Castro Valley, CA 94546

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Other Providers at the Same Location NPPES 3

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

DR. FRANCIS FARRELL JOWER D.D.S.

Dentist

20054 LAKE CHABOT RD
CASTRO VALLEY, CA 94546

Alameda County (510) 881-0888

FRANCIS F. JOWER, D.D.S., INC.

Dentist (General Practice)

20054 LAKE CHABOT RD
CASTRO VALLEY, CA 94546

Alameda County (510) 881-0888

ROBERTMONEILLDDSINC

Dentist (General Practice)

20054 LAKE CHABOT RD
CASTRO VALLEY, CA 94546

Alameda County (510) 886-1231

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 Robert Oneill's NPI number?

The NPI number for Robert Oneill is 1659593366. It was assigned to this individual provider in the NPPES registry on May 3, 2007.

Where is Robert Oneill located?

Robert Oneill practices at 20054 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 886-1231.

What is Robert Oneill'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 Robert Oneill 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.