DR. MICHAEL S CHANG OD
NPI 1144217878
Optometrist in Artesia, CA

Q: What is Michael Chang's NPI number?

The NPI number for Michael Chang is 1144217878. It was assigned to this individual provider in the NPPES registry on September 27, 2005.

Q: What is Michael Chang's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Michael Chang was last updated on January 27, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since September 27, 2005PECOS Enrolled

17801 PIONEER BLVD, SUITE F, ARTESIA, CA 90701(562) 467-0813(562) 467-0816 Get Directions Write a Review

NPPES record last updated: January 27, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Michael S Chang Od NPPES

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

DR. MICHAEL S CHANG OD (NPI 1144217878) is an individual optometrist in Artesia, California, licensed in California (11341T) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1144217878

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameDR. MICHAEL S CHANGCredential: OD

Location Address17801 PIONEER BLVD, SUITE FArtesia, CA 90701-3962

Mailing Address17801 Pioneer Blvd, Suite FArtesia, CA 90701-3962 · (562) 467-0813 · Fax (562) 467-0816

Phone(562) 467-0813

Fax(562) 467-0816

Sole ProprietorYes

Enumeration DateSeptember 27, 2005

Last NPPES UpdateJanuary 27, 2009

✔ NPI 1144217878 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 · 11341T

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.

17801 PIONEER BLVD, Artesia, CA 90701

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Other Identifiers 2

Medicare UPINU96788

Medicare ID-Type UnspecifiedU96788CA

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)

Dr. Michael S Chang Od 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

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

Dr. Michael S. Chang O.D. Inc.

Same address

Optometrist

17801 PIONEER BLVD, SUITE F
Artesia, CA 90701

Reassigned Medicare billing, California enrollment
4 clinicians in this Medicare group

NPI 1952573982 (562) 467-0813

Dr. Michael Chang Optometry Corporation

19 mi

Optometrist

2700 ALTON PKWY STE 221
Irvine, CA 92606

Reassigned Medicare billing, California enrollment

NPI 1376329896 (562) 716-8986

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 90701 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.

Other Providers at the Same Location NPPES 3

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

RICHARD LY OD

Optometrist

17801 PIONEER BLVD
ARTESIA, CA 90701

Los Angeles County (562) 467-0813

KRISTA KYIN OD

Optometrist

17801 PIONEER BLVD
ARTESIA, CA 90701

Los Angeles County (562) 467-0813

DR. MICHAEL S. CHANG O.D. INC.

Optometrist

17801 PIONEER BLVD, SUITE F
ARTESIA, CA 90701

Los Angeles County (562) 467-0813

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 Michael Chang's NPI number?

The NPI number for Michael Chang is 1144217878. It was assigned to this individual provider in the NPPES registry on September 27, 2005.

Where is Michael Chang located?

Michael Chang practices at 17801 Pioneer Blvd Suite F, Artesia, CA 90701. The listed phone number is (562) 467-0813.

What is Michael Chang's specialty?

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

Is Michael Chang enrolled in Medicare?

Yes. Michael Chang is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Chang reassigns Medicare benefits to 2 organizations: Dr. Michael S. Chang O.D. Inc. (Artesia, CA) and Dr. Michael Chang Optometry Corporation (Irvine, 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 Michael Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Chang 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 Michael Chang 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 Michael Chang was last updated on January 27, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.