NPPES file of Aug 9, 2026

Yiyi Wang, OD

Optometrist · Berkeley, CA

Yiyi Wang, OD is an optometrist with a practice address in Berkeley, California, and NPI 1194379917, issued on Jul 30, 2019. Check the license (California 34303TLG, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194379917
Name
Yiyi Wang
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
34303TLG CA
Self-reported in NPPES; status is on the state search
Practice location
230 Minor Hall Berkeley CA 94720, Berkeley, CA 94720
Phone
(510) 642-2020
Enumerated
Jul 30, 2019
Record last updated
Jul 30, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200227002455); accepts Medicare assignment
Medical or professional school
University Of California - School Of Optometry, 2019
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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Verify Yiyi Wang 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 34303TLG
    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

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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Bills Medicare through one group practice

  1. Ucsf Medical Group Business ServicesBerkeley, CA

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

Yiyi Wang among 8,308 optometrist records in California

Yiyi Wang, 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 updated2019 · 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).

126 optometrist records list a practice address in Berkeley

They are 126 of the 4,898 NPPES records with a practice address in Berkeley, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Dennis Burger, O.D.Berkeley, CA 947201942357181
  2. Gunilla Haegerstrom-Portnoy, OD, PHDBerkeley, CA 947201053458745
  3. Kathryn Johnson, O.D.Berkeley, CA 947201578630141
  4. Billie Knight, O.D.Berkeley, CA 947201538222096
  5. Anne Moy, O.D.Berkeley, CA 947201184788713
  6. Edward Revelli, O.D.Berkeley, CA 947201144367830
  7. Nina Tran, O.D.Berkeley, CA 947201629082318
  8. Kathy Tran, O.D.Berkeley, CA 947201346355401

Common questions

What is Yiyi Wang, OD's NPI number?

Yiyi Wang, OD's National Provider Identifier (NPI) is 1194379917, issued on Jul 30, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Yiyi Wang, OD located?

The NPPES record lists a practice address at 230 Minor Hall Berkeley CA 94720, Berkeley, CA, 94720. Phone: (510) 642-2020. Providers update this record themselves, so call before visiting.

How can I verify Yiyi Wang, OD's license?

NPPES lists California license number 34303TLG, 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.