NPPES file of Aug 9, 2026

Wendy Zhen, OD

Optometrist · San Francisco, CA

Wendy Zhen, OD is an optometrist with a practice address in San Francisco, California, and NPI 1356901854, issued on Jun 17, 2019. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356901854
Name
Wendy Zhen
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
TUV008945-01 NY
Self-reported in NPPES; status is on the state search
Practice location
490 Illinois St, San Francisco, CA 94143
Phone
(415) 353-2020
Enumerated
Jun 17, 2019
Record last updated
Aug 8, 2023
Medicare enrollment
Enrolled (PECOS I20210125002641); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 490 Illinois St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tiffany Chen, OD, MSOptometrist1114601465
  2. Adrienne Coulter, ODOptometrist1447923073
  3. Caroline Estes-Nore, MDStudent in an Organized Health Care Education/Training Program1760187769
  4. Simon Fung, MDOphthalmology Physician1194215665
  5. Luciano GreigOphthalmology Physician1154850956
  6. O'Rese Knight, M.D.Ophthalmology Physician1093956013

Verify Wendy Zhen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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43% fewer Medicare Part D claims than the average optometrist in 2024

157 Medicare Part D claims for 53 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Wendy Zhen157
  2. Specialty average277

Most prescribed

  1. Latanoprost43 claims
  2. Prednisolone Acetate15 claims
  3. Dorzolamide-Timolol13 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Ucsf Medical Group Business ServicesSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Wendy Zhen among 8,308 optometrist records in California

Wendy Zhen, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 81% of them.

  • NPI issued2019 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2019 · median 2008 among the 3,573 with a school on file
  • Record last updated2023 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in California

There are 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Olivia Bass, ODSan Francisco, CA 941431568070365
  2. Kristi Choy, O.D.San Francisco, CA 941431578117404
  3. Jennifer CurrierSan Francisco, CA 941431164777975
  4. Elise Harb, O.D., M.S.San Francisco, CA 941431013906551
  5. Roland Jung, ODSan Francisco, CA 941431497707376
  6. Jane KuoSan Francisco, CA 941431538468152
  7. Salena Lee, ODSan Francisco, CA 941431174575492
  8. Laura Leis, O.D.San Francisco, CA 941431649652009

Common questions

What is Wendy Zhen, OD's NPI number?

Wendy Zhen, OD's National Provider Identifier (NPI) is 1356901854, issued on Jun 17, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Wendy Zhen, OD located?

The NPPES record lists a practice address at 490 Illinois St, San Francisco, CA, 94143. Phone: (415) 353-2020. Providers update this record themselves, so call before visiting.

How can I verify Wendy Zhen, OD's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Wendy Zhen, OD prescribe under Medicare Part D?

In 2024, Wendy Zhen, OD had 157 Medicare Part D claims for 53 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Wendy Zhen, OD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.