NPPES file of Aug 9, 2026

Lina Chan, OD

Optometrist · Walnut Creek, CA

Lina Chan, OD is an optometrist with a practice address in Walnut Creek, California, and NPI 1659358042, issued on Dec 27, 2005. Check the license (California OPT11108, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659358042
Name
Lina Chan
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
OPT11108 CA
Self-reported in NPPES; status is on the state search
Practice location
122 LA Casa Via, Walnut Creek, CA 94598
Phone
(925) 947-0888
Enumerated
Dec 27, 2005
Record last updated
Jan 7, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(925) 947-4385
Medicaid ID
SD0111080 CA
Medicare enrollment
Enrolled (PECOS I20070214000405); accepts Medicare assignment
Medical or professional school
University Of California - School Of Optometry, 1999
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 122 LA Casa Via

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

  1. David Demartini, M.D.Ophthalmology Physician1437134855
  2. Allen Verne, M.D.Ophthalmology Physician1093749491

Verify Lina Chan 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 OPT11108
    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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92% fewer Medicare Part D claims than the average optometrist in 2024

22 Medicare Part D claims for 19 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 73% of claims.

  1. Lina Chan22
  2. Specialty average277

Most prescribed

  1. Prednisolone Acetate11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 91.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%71.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $152.92

6 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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. Lina Chan$152.92
  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. Northern California Cornea Associates IncWalnut Creek, CA

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

Lina Chan among 8,308 optometrist records in California

Lina Chan, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated1999 · 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).

Optometrist providers in California

There are 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Judy Chang, O.D.Walnut Creek, CA 945981316090384
  2. Janine Chen, O.D.Walnut Creek, CA 945981851455778
  3. Robert Cheung, O.D.Walnut Creek, CA 945981649251232
  4. Niki Forghani, ODWalnut Creek, CA 945981477600856
  5. Julienne Heene, O.D.Walnut Creek, CA 945981194876987
  6. Tammy Hong, O.D.Walnut Creek, CA 945981790753960
  7. Kenneth Lee, O.D.Walnut Creek, CA 945981023168614
  8. Jeff Liu, ODWalnut Creek, CA 945981801946710

Common questions

What is Lina Chan, OD's NPI number?

Lina Chan, OD's National Provider Identifier (NPI) is 1659358042, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lina Chan, OD located?

The NPPES record lists a practice address at 122 LA Casa Via, Walnut Creek, CA, 94598. Phone: (925) 947-0888. Providers update this record themselves, so call before visiting.

How can I verify Lina Chan, OD's license?

NPPES lists California license number OPT11108, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Lina Chan, OD prescribe under Medicare Part D?

In 2024, Lina Chan, OD had 22 Medicare Part D claims for 19 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Lina Chan, OD's MIPS final score?

The 2023 MIPS final score is 91.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.