NPPES file of Aug 9, 2026

Louisa Lu, MD

Ophthalmology Physician · Greenbrae, CA

Louisa Lu, MD is an ophthalmology physician with a practice address in Greenbrae, California, and NPI 1285261289, issued on Mar 27, 2020. Check the license (California A194833, 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
1285261289
Name
Louisa Lu
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A194833 CA
Self-reported in NPPES; status is on the state search
Practice location
900 S Eliseo Dr Ste 102, Greenbrae, CA 94904
Phone
(415) 461-8200
Enumerated
Mar 27, 2020
Record last updated
Jul 3, 2025
Medicare enrollment
Enrolled (PECOS I20240801000313); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 2020
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 900 S Eliseo Dr Ste 102

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

  1. Lucy Zhang, M.D.Cornea and External Diseases Specialist Physician1326304809

Verify Louisa Lu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A194833
    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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98% fewer Medicare Part D claims than the average ophthalmology physician in 2024

28 Medicare Part D claims for 21 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.

  1. Louisa Lu28
  2. Specialty average1,518

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.

Industry payments in 2024: $1,641.21

8 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. 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. Louisa Lu$1,641.21
  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 2 group practices

  1. County OF San MateoSan Mateo, CA
  2. Robert R Anderson MD IncGreenbrae, CA

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

Louisa Lu among 2,899 ophthalmology physician records in California

Louisa Lu, MD 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 2020, is newer than 94% of them.

  • NPI issued2020 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2020 · median 2001 among the 1,907 with a school on file
  • Record last updated2025 · 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. Robert Anderson, MDGreenbrae, CA 949041760487227
  2. Matthew BedellGreenbrae, CA 949041508159344
  3. Gayle Shimokaji, MDGreenbrae, CA 949041912099672
  4. Richard Alvarado, MDSan Rafael, CA 949031154400299
  5. Alice Cheng-Bennett, MDSan Rafael, CA 949031942384938
  6. J. David Claiborne, MDSan Rafael, CA 949031801970884
  7. Gregg Gayre, MDSan Rafael, CA 949031689758682
  8. Peter Gorenberg, MDSan Rafael, CA 949031205910296

Common questions

What is Louisa Lu, MD's NPI number?

Louisa Lu, MD's National Provider Identifier (NPI) is 1285261289, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Louisa Lu, MD located?

The NPPES record lists a practice address at 900 S Eliseo Dr Ste 102, Greenbrae, CA, 94904. Phone: (415) 461-8200. Providers update this record themselves, so call before visiting.

How can I verify Louisa Lu, MD's license?

NPPES lists California license number A194833, 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 Louisa Lu, MD prescribe under Medicare Part D?

In 2024, Louisa Lu, MD had 28 Medicare Part D claims for 21 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.