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DR. VIVIAN HUYNH OD
NPI 1861208886
Optometrist in San Francisco, CA

Active since December 04, 2024PECOS Enrolled
2100 UNION ST, SAN FRANCISCO, CA 94123(817) 907-1395 Get Directions Write a Review

NPPES record last updated: February 21, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 21, 2025, Dec 4, 2024 (2 updates tracked since 2024).

About Dr. Vivian Huynh Od NPPES

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

DR. VIVIAN HUYNH OD (NPI 1861208886) is an individual optometrist in San Francisco, California, licensed in California (35886) and active in the NPI registry since December 2024. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1861208886
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. VIVIAN HUYNHCredential: OD
Location Address2100 UNION STSan Francisco, CA 94123-4004
Mailing Address793 S Van Ness Ave Apt 307San Francisco, CA 94110-4488 · (817) 907-1395
Phone(817) 907-1395
Sole ProprietorNo
Enumeration DateDecember 4, 2024
Last NPPES UpdateFebruary 21, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 21, 2025
✔ NPI 1861208886 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 · 35886
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.
2100 UNION ST, San Francisco, CA 94123
Open in Google Maps ↗

Secondary Practice Location 1

Location 11844 Divisadero StSan Francisco, CA 94115-2517 · Phone (415) 409-0888

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Vivian Huynh 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

2

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

Vivian Huynh, O.D., A Professional Corporation
Same address
Clinic/Center
2100 UNION ST
San Francisco, CA 94123
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Vivian Huynh Od A Professional Corporation
NPI 1952103988 (415) 534-4359
Total Vision PC
447 mi
Optometrist
11717 BERNARDO PLAZA CT STE 105
San Diego, CA 92128
  • Reassigned Medicare billing, California enrollment
  • 236 clinicians in this Medicare group
NPI 1356813711 (858) 487-5555

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 94123 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 5

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

DR. RAHUL RAJENDRA SUD O.D.
Optometrist
2100 UNION ST
SAN FRANCISCO, CA 94123
San Francisco County (415) 874-4332
RAHUL R. SUD, OD
Optometrist
2100 UNION ST
SAN FRANCISCO, CA 94123
San Francisco County (415) 561-9948
SEE INC
Optometrist
2100 UNION ST
SAN FRANCISCO, CA 94123
San Francisco County (415) 561-9948
MAGGIE KAM CHAN O.D.
Optometrist
2100 UNION ST
SAN FRANCISCO, CA 94123
San Francisco County (415) 561-9948
VIVIAN HUYNH, O.D., A PROFESSIONAL CORPORATION
Clinic/Center
2100 UNION ST
SAN FRANCISCO, CA 94123
San Francisco County (415) 534-4359

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 Vivian Huynh's NPI number?

The NPI number for Vivian Huynh is 1861208886. It was assigned to this individual provider in the NPPES registry on December 4, 2024.

Where is Vivian Huynh located?

Vivian Huynh practices at 2100 Union St, San Francisco, CA 94123. The listed phone number is (817) 907-1395.

What is Vivian Huynh's specialty?

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

Is Vivian Huynh enrolled in Medicare?

Yes. Vivian Huynh is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Vivian Huynh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vivian Huynh reassigns Medicare benefits to 2 organizations: Vivian Huynh, O.D., A Professional Corporation (San Francisco, CA) and Total Vision PC (San Diego, 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 Vivian Huynh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Vivian Huynh accept?

Health plans from Providence Health Plan list Vivian Huynh 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 Vivian Huynh was last updated on February 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.