MICHAEL LING CHANG OD
NPI 1811792435
Optometrist in San Francisco, CA

Q: What is Michael Chang's NPI number?

The NPI number for Michael Chang is 1811792435. It was assigned to this individual provider in the NPPES registry on February 18, 2025.

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 August 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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 February 18, 2025PECOS EnrolledAccepts Medicare Assignment

490 ILLINOIS ST, SAN FRANCISCO, CA 94158(415) 353-2800 Get Directions Write a Review

NPPES record last updated: August 15, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 15, 2025, Feb 18, 2025 (2 updates tracked since 2025).

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About Michael Ling Chang Od NPPES

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

MICHAEL LING CHANG OD (NPI 1811792435) is an individual optometrist in San Francisco, California, licensed in California (OPT35749) and active in the NPI registry since February 2025. He is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1811792435

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameMICHAEL LING CHANGCredential: OD

Location Address490 ILLINOIS STSan Francisco, CA 94158

Mailing Address625 8th St Unit 407San Francisco, CA 94103-5289

Phone(415) 353-2800

Sole ProprietorYes

Medical School CMSOtherGraduated 2024

Enumeration DateFebruary 18, 2025

Last NPPES UpdateAugust 15, 20252 updates tracked since enumeration

NPPES CertifiedAugust 13, 2025

✔ NPI 1811792435 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 · OPT35749

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.

490 ILLINOIS ST, San Francisco, CA 94158

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael Ling Chang Od is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID648781849

PECOS Enrollment IDI20250616001041

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94158 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 19

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

DR. ADRIAN C TSANG MD

Ophthalmology (Uveitis and Ocular Inflammatory Disease)