NPPES file of Aug 9, 2026

Eduardo D. Lam, M.D.

Emergency Medicine Physician · Westminster, CA

Eduardo D. Lam, M.D. is an emergency medicine physician with a practice address in Westminster, California, and NPI 1255410957, issued on Nov 3, 2006. Check the license (California A93915, 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
1255410957
Name
Eduardo D. Lam
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A93915 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Hospital Cir, Westminster, CA 92683
Phone
(818) 340-9988
Enumerated
Nov 3, 2006
Record last updated
Nov 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(818) 587-2493
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 200 Hospital Cir

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

  1. Christopher Barretto, M.D.Physical Medicine & Rehabilitation Physician1093879397
  2. Beoyli Choi, FNPFamily Nurse Practitioner1245079284
  3. Jenna EstradaLicensed Vocational Nurse1013402437
  4. Andrew Givner, M.D.Emergency Medicine Physician1891808622
  5. Mohammad Hajighasemi-Ossareh, MDNeurology Physician1144683137
  6. Mila Jimenez, OTR/LOccupational Therapist1457062168

Verify Eduardo D. Lam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A93915
    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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24% fewer Medicare Part D claims than the average emergency medicine physician in 2024

172 Medicare Part D claims for 114 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Eduardo Lam172
  2. Specialty average226

Most prescribed

  1. Cephalexin25 claims
  2. Ondansetron Odt17 claims
  3. Amoxicillin-Clavulanate Potass11 claims
  4. Ibuprofen11 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): 94.6 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 score76.7
  2. Costout of 100 · 30%97.1
  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).

Eduardo D. Lam among 7,751 emergency medicine physician records in California

Eduardo D. Lam, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Perry Dinh, DOWestminster, CA 926831588160055
  2. Andrew Givner, M.D.Westminster, CA 926831891808622
  3. Travis Parker, M.D.Westminster, CA 926831669551453
  4. Alan Sonne, M.DWestminster, CA 926831508972787
  5. John Wu, M.D.Westminster, CA 926831295804201
  6. Ashley Advincula, MDTrabuco Canyon, CA 926791427636497
  7. Can Tamkoc, M.D.Rancho Santa Margarita, CA 926881457565889
  8. John Chu, MDLaguna Niguel, CA 926771760432827

Common questions

What is Eduardo D. Lam, M.D.'s NPI number?

Eduardo D. Lam, M.D.'s National Provider Identifier (NPI) is 1255410957, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Eduardo D. Lam, M.D. located?

The NPPES record lists a practice address at 200 Hospital Cir, Westminster, CA, 92683. Phone: (818) 340-9988. Providers update this record themselves, so call before visiting.

How can I verify Eduardo D. Lam, M.D.'s license?

NPPES lists California license number A93915, 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 Eduardo D. Lam, M.D. prescribe under Medicare Part D?

In 2024, Eduardo D. Lam, M.D. had 172 Medicare Part D claims for 114 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Eduardo D. Lam, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.6 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.