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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MEHREEN ZIA
NPI 1093269524
Optometrist in Mission Viejo, CA

Active since August 12, 2016PECOS Enrolled
555 THE SHOPS AT MISSION VIEJO STE 602, MISSION VIEJO, CA 92691(949) 480-2404(949) 364-1837 Get Directions Write a Review

NPPES record last updated: September 24, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 24, 2026, Sep 12, 2019, Apr 29, 2019 and 1 more (4 updates tracked since 2016).

About Mehreen Zia NPPES

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

MEHREEN ZIA (NPI 1093269524) is an individual optometrist in Mission Viejo, California, licensed in California (35138) and active in the NPI registry since August 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093269524
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameMEHREEN ZIA
Location Address555 THE SHOPS AT MISSION VIEJO STE 602Mission Viejo, CA 92691-6561
Mailing Address555 The Shops At Mission Viejo Ste 602Mission Viejo, CA 92691-6561 · (949) 480-2404 · Fax (949) 364-1837
Phone(949) 480-2404
Fax(949) 364-1837
Sole ProprietorYes
Enumeration DateAugust 12, 2016
Last NPPES UpdateSeptember 24, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 24, 2026
✔ NPI 1093269524 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 · 35138
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.
555 THE SHOPS AT MISSION VIEJO STE 602, Mission Viejo, CA 92691
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 Louisiana, Blue Cross and Blue Shield of Montana 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)

Mehreen Zia 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 Reassignments

2

Medicare enrollment records show Mehreen Zia reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Optometry 2020
0.1 mi
Optometrist
602 THE SHOPS AT MISSION VIEJO
Mission Viejo, CA 92691
  • Reassigned Medicare billing, California enrollment
NPI 1396584728 (949) 582-2020
Troy Humphreys Od Faao, Professional Corporation
501 mi
Optometrist
600 ASH ST
Susanville, CA 96130
  • Reassigned Medicare billing, California enrollment
  • 38 clinicians in this Medicare group
NPI 1326660960 (530) 257-4424

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 92691 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

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 Mehreen Zia's NPI number?

The NPI number for Mehreen Zia is 1093269524. It was assigned to this individual provider in the NPPES registry on August 12, 2016.

Where is Mehreen Zia located?

Mehreen Zia practices at 555 The Shops At Mission Viejo Ste 602, Mission Viejo, CA 92691. The listed phone number is (949) 480-2404.

What is Mehreen Zia's specialty?

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

Is Mehreen Zia enrolled in Medicare?

Yes. Mehreen Zia is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mehreen Zia's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mehreen Zia reassigns Medicare benefits to 2 organizations: Optometry 2020 (Mission Viejo, CA) and Troy Humphreys Od Faao, Professional Corporation (Susanville, CA). Each 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 Mehreen Zia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mehreen Zia accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Mehreen Zia 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 Mehreen Zia was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days 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.