NPPES file of Aug 9, 2026

Tiffany Ying-Hsuan Chen, OD, MS

Optometrist · San Francisco, CA

Tiffany Ying-Hsuan Chen, OD, MS is an optometrist with a practice address in San Francisco, California, and NPI 1114601465, issued on Jun 14, 2023. Check the license (California 35505, as entered in NPPES) 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114601465
Name
Tiffany Ying-Hsuan Chen
Credential
OD, MS
Primary taxonomy
Optometrist 152W00000X
License number
35505 CA
Self-reported in NPPES; status is on the state search
Practice location
490 Illinois St, San Francisco, CA 94143
Phone
(415) 514-6920
Enumerated
Jun 14, 2023
Record last updated
Jun 14, 2023
Medicare enrollment
Enrolled (PECOS I20240913002579); 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. Sugeile Benavidez QuezadaLicensed Vocational Nurse1285594531
  2. Samantha Chan, ODOptometrist1861179806
  3. Michael Chang, ODOptometrist1811792435
  4. Adrienne Coulter, ODOptometrist1447923073
  5. William Doan Nguyen, ODOptometrist1689564486
  6. Caroline Estes-Nore, MDStudent in an Organized Health Care Education/Training Program1760187769

Verify Tiffany Ying-Hsuan Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 35505
    Check 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

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Industry payments in 2024: $65.77

2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.

  1. Tiffany Chen$65.77
  2. Specialty average$769.99

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

  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).

Optometrist providers in California

There are 8,308 optometrist records in California.

Other optometrist records in California

  1. Douglas Aaseby, O.D.El Dorado Hills, CA1962715961
  2. Saloumeh Abadi, ODSanta Monica, CA1699258756
  3. Davoud AbbasiFillmore, CA1902361678
  4. Christopher Abbott, O.D.Santee, CA1417936220
  5. Sara Abboud, ODAlbany, CA1649052846
  6. Ghezal Abdali, O.D.Tustin, CA1770688640
  7. Nahid Abdali, O.D.San Ramon, CA1700210242
  8. Yasmeen AbdelfattahIrvine, CA1417786617
  9. Marina Abdou, ODUpland, CA1356017321
  10. Angela Abe, OPTModesto, CA1336108885

Common questions

What is Tiffany Ying-Hsuan Chen, OD, MS's NPI number?

Tiffany Ying-Hsuan Chen, OD, MS's National Provider Identifier (NPI) is 1114601465, issued on Jun 14, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Tiffany Ying-Hsuan Chen, OD, MS located?

The NPPES record lists a practice address at 490 Illinois St, San Francisco, CA, 94143. Phone: (415) 514-6920. Providers update this record themselves, so call before visiting.

How can I verify Tiffany Ying-Hsuan Chen, OD, MS's license?

NPPES lists California license number 35505, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.