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DR. GARY K. OZAKI O.D.
NPI 1932226099
Optometrist - Corneal and Contact Management in Dublin, CA

Active since March 23, 2007PECOS Enrolled
4550 TASSAJARA RD, SUITE C, DUBLIN, CA 94568(925) 479-0400(925) 479-0401 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Gary K. Ozaki O.d. NPPES

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

DR. GARY K. OZAKI O.D. (NPI 1932226099) is an individual corneal and contact management provider in Dublin, California, licensed in California (8113T) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932226099
Entity TypeIndividualMale
Primary Taxonomy152WC0802X
Provider Legal NameDR. GARY K. OZAKICredential: O.D.
Location Address4550 TASSAJARA RD, SUITE CDublin, CA 94568-4610
Mailing Address4550 Tassajara Rd, Suite CDublin, CA 94568-4610 · (925) 479-0400 · Fax (925) 479-0401
Phone(925) 479-0400
Fax(925) 479-0401
Sole ProprietorYes
Enumeration DateMarch 23, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1932226099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometrist · Corneal and Contact ManagementEye and Vision Services Providers
Taxonomy Code152WC0802X
License✔ Licensed in CA · 8113T
Definition
The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear.
4550 TASSAJARA RD, Dublin, CA 94568
Open in Google Maps ↗

Other Identifiers 2

Medicare UPIN430285CA
Medicare ID-Type UnspecifiedGOD000849CA

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gary K. Ozaki O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gary Ozaki reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ecs Of Bay Area Optometry Corporation
44 mi
Optometrist
440 IGNACIO BLVD
Novato, CA 94949
  • Reassigned Medicare billing, California enrollment
  • 28 clinicians in this Medicare group
NPI 1154207868 (618) 462-9818

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94568 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

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

DR. RANDALL S. RAMSEY O.D.
Optometrist (Corneal and Contact Management)
4550 TASSAJARA RD, SUITE C
DUBLIN, CA 94568
Alameda County (925) 479-0400
DR RANDALL S RAMSEY OD AND GARY K OZAKI
Optometrist
4550 TASSAJARA RD, SUITE C
DUBLIN, CA 94568
Alameda County (925) 479-0400

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 Gary Ozaki's NPI number?

The NPI number for Gary Ozaki is 1932226099. It was assigned to this individual provider in the NPPES registry on March 23, 2007.

Where is Gary Ozaki located?

Gary Ozaki practices at 4550 Tassajara Rd Suite C, Dublin, CA 94568. The listed phone number is (925) 479-0400.

What is Gary Ozaki's specialty?

The primary specialty registered for this NPI is Optometrist, specializing in Corneal and Contact Management, with taxonomy code 152WC0802X.

Is Gary Ozaki enrolled in Medicare?

Yes. Gary Ozaki is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gary Ozaki's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gary Ozaki reassigns Medicare benefits to Ecs Of Bay Area Optometry Corporation (Novato, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gary Ozaki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gary Ozaki accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Gary Ozaki 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 Gary Ozaki 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.