NPPES file of Aug 9, 2026

Michael Ngai-Yin Lam, M.D

Family Medicine Physician · Alhambra, CA

Michael Ngai-Yin Lam, M.D is a family medicine physician with a practice address in Alhambra, California, and NPI 1528184587, issued on Mar 21, 2007. Check the license (California A912920, 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
1528184587
Name
Michael Ngai-Yin Lam
Credential
M.D
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A912920 CA
Self-reported in NPPES; status is on the state search
Practice location
925 S Garfield Ave, Alhambra, CA 91801
Phone
(626) 282-0282
Enumerated
Mar 21, 2007
Record last updated
Jan 19, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(626) 282-0939
Medicaid ID
00A912920 CA
Medicare enrollment
Enrolled (PECOS I20060426000591); accepts Medicare assignment
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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8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →

Also registered at 925 S Garfield Ave

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

  1. Hoi Lok Chan, FNP-CFamily Nurse Practitioner1205697612
  2. Justin Chan, M.D.Family Medicine Physician1003818501
  3. Min-O Chuang, N.P.Acute Care Nurse Practitioner1902183809
  4. Thomas HanFamily Nurse Practitioner1184348617
  5. Donna HongFamily Nurse Practitioner1326460338
  6. Jin Hong, M.D.Internal Medicine Physician1972516441

Verify Michael Ngai-Yin 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 A912920    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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5.2 times the Medicare Part D claims of the average family medicine physician in 2024

18,322 Medicare Part D claims for 566 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Michael Lam18,322
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium1,344 claims
  2. Amlodipine Besylate1,293 claims
  3. Losartan-Hydrochlorothiazide952 claims
  4. Jardiance787 claims
  5. Vascepa699 claims
  6. Losartan Potassium638 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.

Industry payments in 2024: $2,373.27

26 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Lam$2,373.27
  2. Specialty average$902.55

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. Herald Christian Health CenterSan Gabriel, CA

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

Michael Ngai-Yin Lam among 17,133 family medicine physician records in California

Michael Ngai-Yin Lam, M.D is one of 17,133 family 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 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1986 · median 2005 among the 10,652 with a school on file
  • Record last updated2012 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

26 family medicine physician records list a practice address in Alhambra

They are 26 of the 1,802 NPPES records with a practice address in Alhambra, and 17,133 family medicine physician records in California.

All 17,133 in California → Every provider in Alhambra → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Thelma Buan, M.D.Alhambra, CA 918011568551547
  2. Justin Chan, M.D.Alhambra, CA 918011003818501
  3. Luning Chen, M.D.Alhambra, CA 918011306956529
  4. Corazon Co Thein, MDAlhambra, CA 918011982783502
  5. Benson Kwee, D.O.Alhambra, CA 918011861811762
  6. Weiguo Li, M.D.,PH.D.Alhambra, CA 918011972640142
  7. Hsiung Lin, M.D.Alhambra, CA 918011740380393
  8. Than Luu, MDAlhambra, CA 918011750548640

Common questions

What is Michael Ngai-Yin Lam, M.D's NPI number?

Michael Ngai-Yin Lam, M.D's National Provider Identifier (NPI) is 1528184587, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael Ngai-Yin Lam, M.D located?

The NPPES record lists a practice address at 925 S Garfield Ave, Alhambra, CA, 91801. Phone: (626) 282-0282. Providers update this record themselves, so call before visiting.

How can I verify Michael Ngai-Yin Lam, M.D's license?

NPPES lists California license number A912920, 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 Michael Ngai-Yin Lam, M.D prescribe under Medicare Part D?

In 2024, Michael Ngai-Yin Lam, M.D had 18,322 Medicare Part D claims for 566 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.