NPPES file of Aug 9, 2026

Margaret Liu, M.D.

Ophthalmology Physician · San Francisco, CA

Margaret Liu, M.D. is an ophthalmology physician with a practice address in San Francisco, California, and NPI 1033384748, issued on Apr 23, 2008. Check the license (California A119575, as entered in NPPES) on the Medical Board of California; 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
1033384748
Name
Margaret Liu
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A119575 CA
Self-reported in NPPES; status is on the state search
Practice location
711 Van Ness Ave Ste 310, San Francisco, CA 94102
Phone
(415) 421-8667
Enumerated
Apr 23, 2008
Record last updated
Jan 22, 2024
Fax
(415) 421-5648
Medicare enrollment
Enrolled (PECOS I20121009000729); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 2007
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 711 Van Ness Ave Ste 310

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

  1. Helena Cheng, ODOptometrist1982713616
  2. Joanne Choi, MDCornea and External Diseases Specialist Physician1063041838
  3. Sandeep Kaur, O.D.Optometrist1487956025
  4. Lee Schwartz, M.D.Ophthalmology Physician1174525851

Verify Margaret Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A119575
    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
Open the California license search

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1% fewer Medicare Part D claims than the average ophthalmology physician in 2024

1,501 Medicare Part D claims for 362 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 58% of claims.

  1. Margaret Liu1,501
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate402 claims
  2. Ofloxacin308 claims
  3. Latanoprost138 claims
  4. Rocklatan65 claims
  5. Timolol Maleate62 claims
  6. Xiidra61 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): 82.9 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%43.0
  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: $593.84

23 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Margaret Liu$593.84
  2. Specialty average$4,535.02

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. San Francisco Eye Institute IncSan Francisco, CA

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

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

Other ophthalmology physician records in California

  1. Sam Abbassi, MD, MSWest Hills, CA1881937720
  2. Richard Abbott, M.D.San Francisco, CA1346276573
  3. Jean-Paul Abboud, M.D., PH.D.Del Mar, CA1760776728
  4. Nizar Abdelfattah, MDPasadena, CA1801359393
  5. Parastou Abedi, MDAliso Viejo, CA1720067333
  6. Shahla Abedi, MDAliso Viejo, CA1467431072
  7. Lilit Ablabutyan, M.D.Glendale, CA1497013064
  8. Nathan Abraham, M.D.Valencia, CA1306224456
  9. James Abrams, M.D.San Bruno, CA1912903329
  10. Adam Abroms, MDWestlake Village, CA1497743702

Common questions

What is Margaret Liu, M.D.'s NPI number?

Margaret Liu, M.D.'s National Provider Identifier (NPI) is 1033384748, issued on Apr 23, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Liu, M.D. located?

The NPPES record lists a practice address at 711 Van Ness Ave Ste 310, San Francisco, CA, 94102. Phone: (415) 421-8667. Providers update this record themselves, so call before visiting.

How can I verify Margaret Liu, M.D.'s license?

NPPES lists California license number A119575, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Margaret Liu, M.D. prescribe under Medicare Part D?

In 2024, Margaret Liu, M.D. had 1,501 Medicare Part D claims for 362 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Margaret Liu, M.D.'s MIPS final score?

The 2023 MIPS final score is 82.9 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.