Vivian Chau, OD
Optometrist · Rosemead, CA
Vivian Chau, OD is an optometrist with a practice address in Rosemead, California, and NPI 1558052951, issued on May 16, 2023. Check the license (California 35427, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Vivian Chau
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 35427 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1535 Owens CT, Rosemead, CA 91770
- Phone
- (626) 757-3129
- Enumerated
- May 16, 2023
- Record last updated
- Aug 15, 2023
- Medicare enrollment
- Enrolled (PECOS I20230901001227); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 2022
- Entity
- Type 1 · individual
Verify Vivian Chau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 35427Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average optometrist in 2024
565 Medicare Part D claims for 173 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Latanoprost196 claims
- Dorzolamide-Timolol48 claims
- Prednisolone Acetate41 claims
- Brimonidine Tartrate31 claims
- Lumigan28 claims
- Timolol Maleate28 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $99.93
1 payment: food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Retina Institute OF California Medical Group, A California Medical ParLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
13 optometrist records list a practice address in Rosemead
They are 13 of the 839 NPPES records with a practice address in Rosemead, and 8,308 optometrist records in California.
All 13 in Rosemead → All 8,308 in California → Every provider in Rosemead →
Other optometrist records in California
- Douglas Aaseby, O.D.El Dorado Hills, CA1962715961
- Saloumeh Abadi, ODSanta Monica, CA1699258756
- Davoud AbbasiFillmore, CA1902361678
- Christopher Abbott, O.D.Santee, CA1417936220
- Sara Abboud, ODAlbany, CA1649052846
- Ghezal Abdali, O.D.Tustin, CA1770688640
- Nahid Abdali, O.D.San Ramon, CA1700210242
- Yasmeen AbdelfattahIrvine, CA1417786617
- Marina Abdou, ODUpland, CA1356017321
- Angela Abe, OPTModesto, CA1336108885
Common questions
What is Vivian Chau, OD's NPI number?
Vivian Chau, OD's National Provider Identifier (NPI) is 1558052951, issued on May 16, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Vivian Chau, OD located?
The NPPES record lists a practice address at 1535 Owens CT, Rosemead, CA, 91770. Phone: (626) 757-3129. Providers update this record themselves, so call before visiting.
How can I verify Vivian Chau, OD's license?
NPPES lists California license number 35427, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Vivian Chau, OD prescribe under Medicare Part D?
In 2024, Vivian Chau, OD had 565 Medicare Part D claims for 173 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.