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DR. ROBERT THOMAS GREGG JR. O.D.
NPI 1700921012
Optometrist in Windsor, CA

Active since February 21, 2007
820 MCCLELLAND DR, WINDSOR, CA 95492(707) 837-9000(707) 837-9033 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Robert Thomas Gregg Jr. O.d. NPPES

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

DR. ROBERT THOMAS GREGG JR. O.D. (NPI 1700921012) is an individual optometrist in Windsor, California, licensed in California (OPT9899T) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1700921012
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. ROBERT THOMAS GREGG JR.Credential: O.D.
Location Address820 MCCLELLAND DRWindsor, CA 95492-9572
Mailing Address820 Mcclelland DrWindsor, CA 95492-9572 · (707) 837-9000 · Fax (707) 837-9033
Phone(707) 837-9000
Fax(707) 837-9033
Sole ProprietorYes
Enumeration DateFebruary 21, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1700921012 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 · OPT9899T
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.
820 MCCLELLAND DR, Windsor, CA 95492
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and more.Insurance ›

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 Gregg's NPI number?

The NPI number for Robert Gregg is 1700921012. It was assigned to this individual provider in the NPPES registry on February 21, 2007.

Where is Robert Gregg located?

Robert Gregg practices at 820 Mcclelland Dr, Windsor, CA 95492. The listed phone number is (707) 837-9000.

What is Robert Gregg's specialty?

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

What insurance does Robert Gregg accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas, BlueCross BlueShield of Tennessee and Providence Health Plan list Robert Gregg 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 Robert Gregg 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.