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DR. GREGORY MARK SILVA OD
NPI 1285786012
Optometrist in Antioch, CA

Active since January 18, 2007
3400 DELTA FAIR BLVD, ANTIOCH, CA 94509(925) 779-5000 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Gregory Mark Silva Od NPPES

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

DR. GREGORY MARK SILVA OD (NPI 1285786012) is an individual optometrist in Antioch, California, licensed in California (5599T) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1285786012
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. GREGORY MARK SILVACredential: OD
Location Address3400 DELTA FAIR BLVDAntioch, CA 94509-4004
Mailing Address3400 Delta Fair BlvdAntioch, CA 94509-4004 · (925) 779-5000
Phone(925) 779-5000
Sole ProprietorNo
Enumeration DateJanuary 18, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1285786012 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 · 5599T
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.
3400 DELTA FAIR BLVD, Antioch, CA 94509
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Other Providers at the Same Location NPPES 20

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

MATTHEW ROBERT WHITE PT
Physical Therapist
3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Contra Costa County (925) 779-5442
ROSETTA C. NEWHALL MD
Pediatrics
3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Contra Costa County (925) 779-5000
DR. SANAZ STACY ABOUTALEBI-SIMON O.D.
Optometrist (Corneal and Contact Management)
3400 DELTA FAIR BLVD, THE PERMANENTE MEDICAL GROUP, INC.
ANTIOCH, CA 94509
Contra Costa County (925) 779-5223
RAJ V. DASARI MD
Emergency Medicine
3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Contra Costa County (925) 779-5000
DR. ATHENA PANZAR PSY.D.
Counselor (Mental Health)
3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Contra Costa County (925) 779-5090
AL G. SUMAQUIAL MD
Internal Medicine
3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Contra Costa County (925) 779-5000
BERNABE FLORO URBANO JR. MD
Pediatrics
3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Contra Costa County (925) 779-5000
DR. PHILIP SONG M.D.
Dermatology
3400 DELTA FAIR BLVD
ANTIOCH, CA 94509
Contra Costa County (925) 817-5600

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 Gregory Silva's NPI number?

The NPI number for Gregory Silva is 1285786012. It was assigned to this individual provider in the NPPES registry on January 18, 2007.

Where is Gregory Silva located?

Gregory Silva practices at 3400 Delta Fair Blvd, Antioch, CA 94509. The listed phone number is (925) 779-5000.

What is Gregory Silva'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 Gregory Silva 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.