NPPES file of Aug 9, 2026

Lawrence Chan

Ophthalmology Physician · San Francisco, CA

Lawrence Chan is an ophthalmology physician with a practice address in San Francisco, California, and NPI 1215497920, issued on Mar 20, 2019. Check the license (California A181849, 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
1215497920
Name
Lawrence Chan
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A181849 CA
Self-reported in NPPES; status is on the state search
Practice location
490 Illinois Street, San Francisco, CA 94158
Phone
(415) 353-4433
Enumerated
Mar 20, 2019
Record last updated
Jan 9, 2026
Medicare enrollment
Enrolled (PECOS I20230925003385); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 2019
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 490 Illinois Street

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

  1. Rabih Hage, MDStudent in an Organized Health Care Education/Training Program1881461036
  2. Lakshmisahithi Jaeel, ODOptometrist1366173718
  3. Elana Meer, MDOphthalmology Physician1427707793
  4. Samyuktha Melachuri, M.D.Ophthalmology Physician1114663879
  5. Sahar Noorani, MDOphthalmology Physician1437787595
  6. Emmy TianOptometrist1730876467

Verify Lawrence Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A181849
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average ophthalmology physician in 2024

106 Medicare Part D claims for 50 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.

  1. Lawrence Chan106
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate14 claims
  2. Latanoprost13 claims
  3. Polymyxin B Sul-Trimethoprim12 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 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 score82.1
  2. Costout of 100 · 30%64.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $824.73

10 payments; by number, the most common kind was food and beverage; the largest payer was Dutch Ophthalmic, USA. 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. Lawrence Chan$824.73
  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. Alameda Health SystemOakland, CA
  2. West Coast Retina Medical Group IncSan Francisco, CA

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

Lawrence Chan among 2,899 ophthalmology physician records in California

Lawrence Chan 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 2019, is newer than 92% of them.

  • NPI issued2019 · 92% of these records are older, 6% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2019 · median 2001 among the 1,907 with a school on file
  • Record last updated2026 · 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. Manuel ColonSan Francisco, CA 941581982353652
  2. Morgan Harvey, MDSan Francisco, CA 941581477054997
  3. Justin Ma, MDSan Francisco, CA 941581861141426
  4. Elana Meer, MDSan Francisco, CA 941581427707793
  5. Mark Nagy, MD, PHDSan Francisco, CA 941581811637945
  6. Sahar Noorani, MDSan Francisco, CA 941581437787595
  7. Neel Pasricha, M.D.San Francisco, CA 941581881056596
  8. Saraswathy Ramanathan, M.D.San Francisco, CA 941581326086828

Common questions

What is Lawrence Chan's NPI number?

Lawrence Chan's National Provider Identifier (NPI) is 1215497920, issued on Mar 20, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence Chan located?

The NPPES record lists a practice address at 490 Illinois Street, San Francisco, CA, 94158. Phone: (415) 353-4433. Providers update this record themselves, so call before visiting.

How can I verify Lawrence Chan's license?

NPPES lists California license number A181849, 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 Lawrence Chan prescribe under Medicare Part D?

In 2024, Lawrence Chan had 106 Medicare Part D claims for 50 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Lawrence Chan's MIPS final score?

The 2023 MIPS final score is 91 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.