IRIS BRIGHT OPTOMETRY
NPI 1861048506
Optometrist in Irvine, CA

Q: What is Kuei-Yu Chang O.D. Inc., A Professional Corporation's specialty?

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

Active since August 16, 2019

8519 IRVINE CENTER DR, IRVINE, CA 92618(949) 585-9403(949) 585-9162 Get Directions Write a Review

NPPES record last updated: October 5, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 5, 2024, Oct 27, 2019, Aug 17, 2019 (3 updates tracked since 2019).

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About Iris Bright Optometry NPPES

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

IRIS BRIGHT OPTOMETRY (NPI 1861048506) is a healthcare organization registered as an optometrist in Irvine, California and active in the NPI registry since August 2019. The organization maintains a secondary practice location in El Cajon and lists Khiem Nguyen-trong, Operations Manager, as its authorized official.

NPPES Registry Identity

NPI1861048506

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameKUEI-YU CHANG O.D. INC., A PROFESSIONAL CORPORATION

Location Address8519 IRVINE CENTER DRIrvine, CA 92618-4298

Mailing Address8519 Irvine Center DrIrvine, CA 92618-4298 · (657) 229-0977 · Fax (949) 585-9162

Phone(949) 585-9403

Fax(949) 585-9162

Organization SubpartNo

Authorized OfficialKhiem Nguyen-trongOperations Manager · (818) 793-9666

Enumeration DateAugust 16, 2019

Last NPPES UpdateOctober 5, 20243 updates tracked since enumeration

NPPES CertifiedOctober 5, 2024

✔ NPI 1861048506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

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.

Also ListedOptometrist · Corneal and Contact ManagementTaxonomy 152WC0802X

8519 IRVINE CENTER DR, Irvine, CA 92618

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Other Names 1

Doing Business AsIris Bright Optometry

Secondary Practice Location 1

Location 1539 Parkway PlzEl Cajon, CA 92020-2532 · Phone (619) 447-8494 · Fax (619) 441-0143

Other Identifiers 1

Other15157TLGCA · Optometry License

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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 Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Iris Bright Optometry is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 4 clinicians reassign Medicare billing to Iris Bright Optometry, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Vickie Bui, O.D.

Optometry

NPI 1760060529

8519 IRVINE CENTER DR
Irvine, CA 92618

(949) 585-9403

✔ PECOS✔ Accepts MedicareSame address

Kuei-Yu Chang, O.D.

Optometry

NPI 1962758706

8519 IRVINE CENTER DR
Irvine, CA 92618

(949) 585-9403

✔ PECOS✔ Accepts MedicareSame address

Mei Liu, O.D.

Optometry

NPI 1427456227

1200 N TUSTIN AVE STE 140
Santa Ana, CA 92705

(714) 972-8432

✔ PECOS✔ Accepts Medicare9.2 mi

Luke Lin, OD

Optometry

NPI 1639862501

7155 BROADWAY
Lemon Grove, CA 91945

(858) 848-4749

✔ PECOS✔ Accepts Medicare74 mi

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

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 Kuei-Yu Chang O.D. Inc., A Professional Corporation's NPI number?

The NPI number for Kuei-Yu Chang O.D. Inc., A Professional Corporation is 1861048506. It was assigned to this organization in the NPPES registry on August 16, 2019. The provider is doing business as Iris Bright Optometry.

Where is Kuei-Yu Chang O.D. Inc., A Professional Corporation located?

Kuei-Yu Chang O.D. Inc., A Professional Corporation is located at 8519 Irvine Center Dr, Irvine, CA 92618. The listed phone number is (949) 585-9403.

What is Kuei-Yu Chang O.D. Inc., A Professional Corporation's specialty?

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

Is Kuei-Yu Chang O.D. Inc., A Professional Corporation enrolled in Medicare?

Yes. Kuei-Yu Chang O.D. Inc., A Professional Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Kuei-Yu Chang O.D. Inc., A Professional Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Optometry, reassign their Medicare billing to Kuei-Yu Chang O.D. Inc., A Professional Corporation. A 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 the clinician's services. Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Kuei-Yu Chang O.D. Inc., A Professional Corporation 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 BlueCross BlueShield of Tennessee list Kuei-Yu Chang O.D. Inc., A Professional Corporation 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 Kuei-Yu Chang O.D. Inc., A Professional Corporation was last updated on October 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.