Quick answers
- Where does Vivian Chau see patients?
- Medicare's clinician data lists 2 practice locations, including Downey, CA and Los Angeles, CA. Call before your visit to confirm the address.
- What is Vivian Chau's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Vivian Chau accept Medicare assignment?
- Yes. Medicare's clinician data says Vivian Chau accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Vivian Chau?
- (562) 862-6200, as listed in official Medicare / NPI Registry data.
- What is Vivian Chau's NPI number?
- 1558052951. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Vivian Chau is enrolled with Medicare (CMS data updated 2026-10-02).
- 11525 Brookshire Ave, 201aDowney, CA 90241 (562) 862‑6200
- 2400 N BroadwayLos Angeles, CA 90031 (323) 221‑8000
Group practices
Medicare enrollment lists Vivian Chau as a member of this group (CMS data updated 2026-10-02).
- Retina Institute of California Medical Group, a California Medical Par77 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Downey
Clinicians with the same Medicare primary specialty in Downey, CA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | Southern California College Of Optometry |
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558052951 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians