Mary Liao, O.D.
Optometrist · Oxnard, CA
Mary Liao, O.D. is an optometrist with a practice address in Oxnard, California, and NPI 1992858526, issued on Jan 18, 2007. Check the license (California OPT11515-TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Liao
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT11515-TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 N Rose Ave, Oxnard, CA 93030
- Phone
- (805) 983-0700
- Enumerated
- Jan 18, 2007
- Entity
- Type 1 · individual
Also registered at 1700 N Rose Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cary Alberstone, MDNeurological Surgery Physician1346253689
- Jaime Arana, MDStudent in an Organized Health Care Education/Training Program1720240716
- Lisa Babashoff, M.D.Surgery Physician1568465649
- Timothy Bryant, M.D.Surgery Physician1164425245
- Kevin Chang, MDHematology & Oncology Physician1649219452
- Chirag Dalsania, M.D.Internal Medicine Physician1215026380
Verify Mary Liao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT11515-TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
7% more Medicare Part D claims than the average optometrist in 2024
298 Medicare Part D claims for 115 beneficiaries, against an average of 279 among the 32,314 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Latanoprost53 claims
- Cyclosporine30 claims
- Lumigan29 claims
- Restasis24 claims
- Prednisolone Acetate18 claims
- Vyzulta17 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 Medicare quality score for 2023: 90.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $169.73
3 payments, mostly food and beverage; the largest payer was Amgen Inc.. The 33,561 providers of this specialty with any payment received $749.79 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.
One hospital or facility affiliation
- Coastal Eye Specialists Medical Group IncOxnard, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Optometrist providers in California
There are 8,156 optometrist records in California.
Other optometrist records in California
- Douglas Aaseby, O.D.El Dorado Hills, CA1962715961
- Saloumeh Abadi, ODSanta Monica, CA1699258756
- Davoud AbbasiFillmore, CA1902361678
- Christopher Abbott, O.D.Santee, CA1417936220
- Sara Abboud, ODAlbany, CA1649052846
- Ghezal Abdali, O.D.Tustin, CA1770688640
- Nahid Abdali, O.D.San Ramon, CA1700210242
- Yasmeen AbdelfattahIrvine, CA1417786617
- Marina Abdou, ODUpland, CA1356017321
- Angela Abe, OPTModesto, CA1336108885
Common questions
What is Mary Liao, O.D.'s NPI number?
Mary Liao, O.D.'s National Provider Identifier (NPI) is 1992858526, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Liao, O.D. located?
The NPPES record lists a practice address at 1700 N Rose Ave, Oxnard, CA, 93030. Phone: (805) 983-0700. Providers update this record themselves, so call before visiting.
How can I verify Mary Liao, O.D.'s license?
NPPES lists California license number OPT11515-TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Liao, O.D. prescribe under Medicare Part D?
In 2024, Mary Liao, O.D. had 298 Medicare Part D claims for 115 beneficiaries; the average among optometrist prescribers was 279. Part D covers Medicare prescriptions only.
What is Mary Liao, O.D.'s Medicare quality score?
The 2023 MIPS final score is 90.3 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.