DIANE H WILLIAMS OD
NPI 1790746238
Optometrist in Danville, CA

Q: What is Diane Williams's NPI number?

The NPI number for Diane Williams is 1790746238. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Q: What is Diane Williams's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Diane Williams was last updated on December 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 March 31, 2006

909 SAN RAMON VALLEY BLVD, SUITE 114, DANVILLE, CA 94526(925) 837-5922(925) 837-1403 Get Directions Write a Review

NPPES record last updated: December 18, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Diane H Williams Od NPPES

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

DIANE H WILLIAMS OD (NPI 1790746238) is an individual optometrist in Danville, California, licensed in California (7087) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1790746238

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameDIANE H WILLIAMSCredential: OD

Location Address909 SAN RAMON VALLEY BLVD, SUITE 114Danville, CA 94526-4038

Mailing Address909 San Ramon Valley Blvd, Suite 114Danville, CA 94526-4038 · (925) 837-5922 · Fax (925) 837-1403

Phone(925) 837-5922

Fax(925) 837-1403

Sole ProprietorNo

Enumeration DateMarch 31, 2006

Last NPPES UpdateDecember 18, 2008

✔ NPI 1790746238 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in CA · 7087

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

909 SAN RAMON VALLEY BLVD, Danville, CA 94526

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Other Identifiers 2

Medicare UPINU31013CA

Medicare PINSD0070870CA

Other Providers at the Same Location NPPES 7

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

ROGER A GREENWALD M.D.

Ophthalmology

909 SAN RAMON VALLEY BLVD, #114
DANVILLE, CA 94526

Contra Costa County (925) 837-6428

LAWRENCE ALAN TEPLIN DPM

Podiatrist

909 SAN RAMON VALLEY BLVD, STE. 118
DANVILLE, CA 94526

Contra Costa County (925) 362-1080

LAWRENCE A TEPLIN DPM

Podiatrist

909 SAN RAMON VALLEY BLVD, SUITE #118
DANVILLE, CA 94526

Contra Costa County (925) 362-1080

DANVILLE-SAN RAMON EYE MEDICAL CORP

Ophthalmology

909 SAN RAMON VALLEY BLVD, STE 114
DANVILLE, CA 94526

Contra Costa County (925) 837-6428

DR. CLAUDIA SUSANA PINILLA MD

Ophthalmology

909 SAN RAMON VALLEY BLVD, STE 114
DANVILLE, CA 94526

Contra Costa County (925) 837-6428

F. RYAN ANDERSON, MD

Obstetrics & Gynecology

909 SAN RAMON VALLEY BLVD, SUITE 214
DANVILLE, CA 94526

Contra Costa County (925) 820-9898

DR. RUPINDER K MANN MD

Ophthalmology

909 SAN RAMON VALLEY BLVD, STE 114
DANVILLE, CA 94526

Contra Costa County (925) 837-6428

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 Diane Williams's NPI number?

The NPI number for Diane Williams is 1790746238. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Where is Diane Williams located?

Diane Williams practices at 909 San Ramon Valley Blvd Suite 114, Danville, CA 94526. The listed phone number is (925) 837-5922.

What is Diane Williams's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for Diane Williams was last updated on December 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.