NPPES file of Aug 9, 2026

Anthony Liu, M.D.

Ophthalmology Physician · San Mateo, CA

Anthony Liu, M.D. is an ophthalmology physician with a practice address in San Mateo, California, and NPI 1912232224, issued on Oct 5, 2009. Check the license (California A104903, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912232224
Name
Anthony Liu
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A104903 CA
Self-reported in NPPES; status is on the state search
Practice location
101 S San Mateo Dr Ste 310, San Mateo, CA 94401
Phone
(650) 342-7474
Enumerated
Oct 5, 2009
Record last updated
Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(650) 342-9260
Medicare enrollment
Enrolled (PECOS I20110707000198); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 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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Verify Anthony 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 A104903
    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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2.7 times the Medicare Part D claims of the average ophthalmology physician in 2024

4,130 Medicare Part D claims for 820 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Anthony Liu4,130
  2. Specialty average1,518

Most prescribed

  1. Latanoprost733 claims
  2. Timolol Maleate415 claims
  3. Bimatoprost365 claims
  4. Brimonidine Tartrate358 claims
  5. Prednisolone Acetate358 claims
  6. Dorzolamide-Timolol316 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. Permanente Medical Group IncRedwood City, CA

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

Anthony Liu among 2,899 ophthalmology physician records in California

Anthony Liu, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 72% of them.

  • NPI issued2009 · 72% of these records are older, 26% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2007 · median 2001 among the 1,907 with a school on file
  • Record last updated2021 · 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 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Bruce Bern, M.D.San Mateo, CA 944011700954278
  2. Michael Drinnan, MDSan Mateo, CA 944011609883024
  3. Robert Filer, M.D.San Mateo, CA 944011467520833
  4. Jacqueline Koo, MDSan Mateo, CA 944011528060308
  5. Robert Kule, M.D.San Mateo, CA 944011235455197
  6. Michael Macdonald, M.D.San Mateo, CA 944011144398512
  7. Rajvi MehtaSan Mateo, CA 944011942732995
  8. Donna Ornitz, MDSan Mateo, CA 944011073528790

Common questions

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

Anthony Liu, M.D.'s National Provider Identifier (NPI) is 1912232224, issued on Oct 5, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Anthony Liu, M.D. located?

The NPPES record lists a practice address at 101 S San Mateo Dr Ste 310, San Mateo, CA, 94401. Phone: (650) 342-7474. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number A104903, 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 Anthony Liu, M.D. prescribe under Medicare Part D?

In 2024, Anthony Liu, M.D. had 4,130 Medicare Part D claims for 820 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.