NPPES file of Aug 9, 2026

Chien Tai, O.D,

Optometrist · Oakland, CA

Chien Tai, O.D, is an optometrist with a practice address in Oakland, California, and NPI 1316013394, issued on Nov 28, 2006. Check the license (California OPT12363, 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
1316013394
Name
Chien Tai
Credential
O.D,
Primary taxonomy
Optometrist 152W00000X
License number
OPT12363 CA
Self-reported in NPPES; status is on the state search
Practice location
3060 B East 9TH Street, Oakland, CA 94601
Phone
(510) 535-5500
Enumerated
Nov 28, 2006
Record last updated
Aug 12, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(510) 535-4349
Medicare enrollment
Enrolled (PECOS I20101023000214); 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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Verify Chien Tai 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 OPT12363
    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
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73% fewer Medicare Part D claims than the average optometrist in 2024

75 Medicare Part D claims for 25 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.

  1. Chien Tai75
  2. Specialty average277

Most prescribed

  1. Latanoprost40 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.

Bills Medicare through one group practice

  1. LA Clinica DE LA Raza IncOakland, CA

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

Chien Tai among 8,308 optometrist records in California

Chien Tai, 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 66% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2003 · median 2008 among the 3,573 with a school on file
  • Record last updated2013 · 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. Karen Chester, ODOakland, CA 946011003919309
  2. Nicole Mondoux, OPOakland, CA 946011053487033
  3. Joel Munoz, ODOakland, CA 946011952032971
  4. Christine Ng, O.D.Oakland, CA 946011316201569
  5. Jennifer ParkOakland, CA 946011467879791
  6. Kresta Ria TabaranzaOakland, CA 946011730812926
  7. Payam Zarehbin, O.DOakland, CA 946011164428942
  8. Aaron Thornton, O.D.Oakland, CA 946021164493466

Common questions

What is Chien Tai, O.D,'s NPI number?

Chien Tai, O.D,'s National Provider Identifier (NPI) is 1316013394, issued on Nov 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chien Tai, O.D, located?

The NPPES record lists a practice address at 3060 B East 9TH Street, Oakland, CA, 94601. Phone: (510) 535-5500. Providers update this record themselves, so call before visiting.

How can I verify Chien Tai, O.D,'s license?

NPPES lists California license number OPT12363, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Chien Tai, O.D, prescribe under Medicare Part D?

In 2024, Chien Tai, O.D, had 75 Medicare Part D claims for 25 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.