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DR. MARCELLUS TIN-YAU CHOW OD
NPI 1194890012
Optometrist in San Francisco, CA

Active since November 24, 2006PECOS EnrolledAccepts Medicare Assignment
3201 MISSION ST, SAN FRANCISCO, CA 94110(415) 648-3600(415) 648-0719 Get Directions Write a Review

NPPES record last updated: December 30, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Marcellus Tin-yau Chow Od NPPES

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

DR. MARCELLUS TIN-YAU CHOW OD (NPI 1194890012) is an individual optometrist in San Francisco, California, licensed in California (12033T) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California - School Of Optometry (1998).

NPPES Registry Identity

NPI1194890012
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. MARCELLUS TIN-YAU CHOWCredential: OD
Location Address3201 MISSION STSan Francisco, CA 94110-5006
Mailing Address3201 Mission StSan Francisco, CA 94110-5006 · (415) 648-3600 · Fax (415) 648-0719
Phone(415) 648-3600
Fax(415) 648-0719
Sole ProprietorNo
Medical School CMSUniversity Of California - School Of OptometryGraduated 1998
Enumeration DateNovember 24, 2006
Last NPPES UpdateDecember 30, 2021
✔ NPI 1194890012 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 · 12033T
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.
3201 MISSION ST, San Francisco, CA 94110
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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

Dr. Marcellus Tin-yau Chow 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 ID941456172
PECOS Enrollment IDI20120803000361
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 94110 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.

ANDREW CALMAN
Specialist
3201 MISSION ST
SAN FRANCISCO, CA 94110
San Francisco County (415) 648-3600
DR. BRIAN EDWARD SNYDSMAN O.D.
Optometrist
3201 MISSION ST
SAN FRANCISCO, CA 94110
San Francisco County (415) 648-3600

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 Marcellus Chow's NPI number?

The NPI number for Marcellus Chow is 1194890012. It was assigned to this individual provider in the NPPES registry on November 24, 2006.

Where is Marcellus Chow located?

Marcellus Chow practices at 3201 Mission St, San Francisco, CA 94110. The listed phone number is (415) 648-3600.

What is Marcellus Chow's specialty?

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

Is Marcellus Chow enrolled in Medicare?

Yes. Marcellus Chow is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Marcellus Chow was last updated on December 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.