NPPES file of Aug 9, 2026

Ma Koreena Jayne Yu Tran, PA-C

Physician Assistant · Diamond Bar, CA

Ma Koreena Jayne Yu Tran, PA-C is a physician assistant with a practice address in Diamond Bar, California, and NPI 1841751815, issued on Mar 30, 2019. Check the license (California 56536, as entered in NPPES) with the California board that licenses this profession; 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
1841751815
Name
Ma Koreena Jayne Yu Tran
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
56536 CA
Self-reported in NPPES; status is on the state search
Practice location
1514 Valley Vista Dr, Diamond Bar, CA 91765
Phone
(909) 860-1144
Enumerated
Mar 30, 2019
Record last updated
Jan 5, 2023
Medicare enrollment
Enrolled (PECOS I20190429001547); 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 1514 Valley Vista Dr

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

  1. Wilfredo Alejo, M.D.Pediatrics Physician1114990785
  2. Silvia Alonzo, MS, PA-CMedical Physician Assistant1942586623
  3. Jing Chen, M.D.Pediatrics Physician1699208942
  4. William FenertyFamily Medicine Physician1184625915
  5. Brian Koffman, MDFamily Medicine Physician1326049164
  6. Keli Layton-Cunnigan, PAPhysician Assistant1063613958

Verify Ma Koreena Jayne Yu Tran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 56536
    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
Find 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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9% more Medicare Part D claims than the average physician assistant in 2024

901 Medicare Part D claims for 391 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Ma Koreena Jayne Tran901
  2. Specialty average830

Most prescribed

  1. Fluticasone Propionate56 claims
  2. Albuterol Sulfate Hfa55 claims
  3. Ibuprofen53 claims
  4. Azithromycin49 claims
  5. Amoxicillin-Clavulanate Potass46 claims
  6. Omeprazole29 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: $202.77

11 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ma Koreena Jayne Tran$202.77
  2. Specialty average$841.65

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. Providence Medical FoundationFullerton, CA

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

Ma Koreena Jayne Yu Tran among 14,451 physician assistant records in California

Ma Koreena Jayne Yu Tran, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% 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 56% of them.

  • NPI issued2019 · 56% of these records are older, 38% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2016 · median 2018 among the 7,214 with a school on file
  • Record last updated2023 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 physician assistant records list a practice address in Diamond Bar

They are 12 of the 598 NPPES records with a practice address in Diamond Bar, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Kristofer AbejuelaDiamond Bar, CA 917651194122234
  2. Felipe Coronado, PA-CDiamond Bar, CA 917651508920059
  3. Joseph Hsu, PACDiamond Bar, CA 917651336444959
  4. Lesley Kongaika, PA-CDiamond Bar, CA 917651083980007
  5. Keli Layton-Cunnigan, PADiamond Bar, CA 917651063613958
  6. Denette Munchel, PADiamond Bar, CA 917651184834699
  7. Kent Stout, PADiamond Bar, CA 917651336357896
  8. Lynn Uchizono, PA-CDiamond Bar, CA 917651245598259

Common questions

What is Ma Koreena Jayne Yu Tran, PA-C's NPI number?

Ma Koreena Jayne Yu Tran, PA-C's National Provider Identifier (NPI) is 1841751815, issued on Mar 30, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Ma Koreena Jayne Yu Tran, PA-C located?

The NPPES record lists a practice address at 1514 Valley Vista Dr, Diamond Bar, CA, 91765. Phone: (909) 860-1144. Providers update this record themselves, so call before visiting.

How can I verify Ma Koreena Jayne Yu Tran, PA-C's license?

NPPES lists California license number 56536, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ma Koreena Jayne Yu Tran, PA-C prescribe under Medicare Part D?

In 2024, Ma Koreena Jayne Yu Tran, PA-C had 901 Medicare Part D claims for 391 beneficiaries; the average among physician assistant prescribers was 830. 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.