Grace Tseng, O.D.
Optometrist · Berkeley, CA
Grace Tseng, O.D. is an optometrist with a practice address in Berkeley, California, and NPI 1780208330, issued on May 29, 2020. Check the license (California 34634, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Grace Tseng
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34634 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Minor Hall University OF California AT Berkeley, Berkeley, CA 94720
- Phone
- (510) 642-0945
- Enumerated
- May 29, 2020
- Record last updated
- Aug 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201201002362); accepts Medicare assignment
- Medical or professional school
- New England College Of Optometry, 2020
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 200 Minor Hall University OF California AT Berkeley
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Liandra Jung, ODOptometrist1386252849
Verify Grace Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34634Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average optometrist in 2024
47 Medicare Part D claims for 18 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 70% of claims.
Most prescribed
- Latanoprost13 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: $877.48
45 payments; by number, the most common kind was food and beverage; the largest payer was Tarsus Pharmaceuticals, 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
- Mendelson And Mark Optometric CorporationSunnyvale, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grace Tseng among 8,308 optometrist records in California
Grace Tseng, O.D. 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 2020, is newer than 84% of them.
- NPI issued2020 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2020 · median 2008 among the 3,573 with a school on file
- Record last updated2020 · 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.
All 8,308 in California → Every provider in Berkeley → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Dennis Burger, O.D.Berkeley, CA 947201942357181
- Gunilla Haegerstrom-Portnoy, OD, PHDBerkeley, CA 947201053458745
- Kathryn Johnson, O.D.Berkeley, CA 947201578630141
- Billie Knight, O.D.Berkeley, CA 947201538222096
- Anne Moy, O.D.Berkeley, CA 947201184788713
- Edward Revelli, O.D.Berkeley, CA 947201144367830
- Nina Tran, O.D.Berkeley, CA 947201629082318
- Kathy Tran, O.D.Berkeley, CA 947201346355401
Common questions
What is Grace Tseng, O.D.'s NPI number?
Grace Tseng, O.D.'s National Provider Identifier (NPI) is 1780208330, issued on May 29, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Grace Tseng, O.D. located?
The NPPES record lists a practice address at 200 Minor Hall University OF California AT Berkeley, Berkeley, CA, 94720. Phone: (510) 642-0945. Providers update this record themselves, so call before visiting.
How can I verify Grace Tseng, O.D.'s license?
NPPES lists California license number 34634, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Grace Tseng, O.D. prescribe under Medicare Part D?
In 2024, Grace Tseng, O.D. had 47 Medicare Part D claims for 18 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.