NPPES file of Aug 9, 2026

Luei Wern Ong, M.D.

Family Medicine Physician · Brockton, MA

Luei Wern Ong, M.D. is a family medicine physician with a practice address in Brockton, Massachusetts, and NPI 1841670536, issued on Jun 8, 2015. Check the license (Massachusetts 274541, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1841670536
Name
Luei Wern Ong
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
274541 MA
R-10300 IA
Self-reported in NPPES; status is on the state search
Practice location
110 Liberty St, Brockton, MA 02301
Phone
(508) 894-0400
Enumerated
Jun 8, 2015
Record last updated
Jan 12, 2024
Fax
(508) 894-0412
Medicare enrollment
Enrolled (PECOS I20180904000523); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 110 Liberty St

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

  1. Melissa Adigun, P.APhysician Assistant1205104932
  2. Georges Almacari, M.D.Orthopaedic Surgery Physician1326152216
  3. Marshal Armitage, MDOrthopaedic Surgery Physician1801950563
  4. Taleen Arslanian, MDInternal Medicine Physician1457334492
  5. Danielle Auclair, MPT, DPTPhysical Therapist1770505240
  6. Jodi Bandola, P.T.Physical Therapist1417114661

Verify Luei Wern Ong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 274541
    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 Massachusetts license search

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2.6 times the Medicare Part D claims of the average family medicine physician in 2024

9,366 Medicare Part D claims for 636 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 233 claims were for opioids.

  1. Luei Ong9,366
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium648 claims
  2. Lisinopril453 claims
  3. Omeprazole386 claims
  4. Amlodipine Besylate349 claims
  5. Levothyroxine Sodium318 claims
  6. Losartan Potassium293 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): 89.4 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 score75.4
  2. Costout of 100 · 30%72.7
  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: $89.78

1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. 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. Luei Ong$89.78
  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. Signature Healthcare Medical Group IncBrockton, MA

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

Family Medicine Physician providers in Massachusetts

There are 2,265 family medicine physician records in Massachusetts.

Other family medicine physician records in Massachusetts

  1. Salah Abass, M.D.Methuen, MA1417959776
  2. Majed Abbas, MDLowell, MA1346827870
  3. Sheila Abdallah, MDWorcester, MA1821356312
  4. Omar Abduljabar, M.D.Springfield, MA1770978843
  5. Jonathan Abel, DOSpringfield, MA1700897196
  6. Mohamed Abib, MDSturbridge, MA1639281090
  7. Kevin Abraham, M.D.Worcester, MA1689037673
  8. Janet Abrahamian, M.D.West Boylston, MA1932156627
  9. John Abramson, M.D.Ipswich, MA1275613903
  10. John Paul Abroguena, MDPlainville, MA1235361080

Common questions

What is Luei Wern Ong, M.D.'s NPI number?

Luei Wern Ong, M.D.'s National Provider Identifier (NPI) is 1841670536, issued on Jun 8, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Luei Wern Ong, M.D. located?

The NPPES record lists a practice address at 110 Liberty St, Brockton, MA, 02301. Phone: (508) 894-0400. Providers update this record themselves, so call before visiting.

How can I verify Luei Wern Ong, M.D.'s license?

NPPES lists Massachusetts license number 274541, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Luei Wern Ong, M.D. prescribe under Medicare Part D?

In 2024, Luei Wern Ong, M.D. had 9,366 Medicare Part D claims for 636 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Luei Wern Ong, M.D.'s MIPS final score?

The 2023 MIPS final score is 89.4 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.