Healthcare provider profile · identity verified

Kenneth Leung, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · ASHLAND, KY · NPI 1518306471

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Kenneth Leung, M.D. received $543.48 in general payments during 2025 across 36 reported records.

GlaxoSmithKline, LLC. accounted for 64.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Trelegy Ellipta, Uptravi.

Actelion Pharmaceuticals US, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported OPSUMIT as an associated drug or biological on 18955 records involving 8899 distinct recipient NPIs. Public Medicare Part D data also shows 58 claims for Opsumit by this doctor in 2024.

Actelion Pharmaceuticals US, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported UPTRAVI as an associated drug or biological on 21562 records involving 9341 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Uptravi by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Symbicort by this doctor in 2024.

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 150 claims for Trelegy Ellipta by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$543.48

36 reported records · 8 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $348.8564.2%292025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $67.9312.5%12025
Actelion Pharmaceuticals US, Inc. Unresolved — no canonical attribution shown $26.834.9%12025
Viatris Specialty LLC Unresolved — no canonical attribution shown $24.954.6%12025
Stryker Corporation Unresolved — no canonical attribution shown $24.204.5%12025
Amgen Inc. Unresolved — no canonical attribution shown $19.643.6%12025
Genentech USA, Inc. Unresolved — no canonical attribution shown $17.583.2%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $13.502.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$543.4836

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $288.86 20 2025
Source payment records
WINREVAIR
Normalized: winrevair
Biological Merck Sharp & Dohme LLC $67.93 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $62.56 3 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $59.99 9 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological Amgen Inc., AstraZeneca Pharmaceuticals LP $33.14 2 2025
Source payment records
UPTRAVI
Normalized: uptravi
Drug Actelion Pharmaceuticals US, Inc. $26.83 1 2025
Source payment records
YUPELRI
Normalized: yupelri
Drug Viatris Specialty LLC $24.95 1 2025
Source payment records
FLOWTRIEVER
Normalized: flowtriever
Device Stryker Corporation $24.20 1 2025
Source payment records
Xolair
Normalized: xolair
Biological Genentech USA, Inc. $17.58 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 150 exact normalized Medicare Part D
UPTRAVI
uptravi
2025 Uptravi 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Actelion Pharmaceuticals US, Inc.
Exact reporting entity; no affiliate inference
2025 OPSUMIT
open payments reported associated product
CMS Open Payments — General Payments
18955 supporting records · 8899 recipient NPIs · example record 1174163978
Opsumit · 2024
Exact normalized brand match · 1 Part D row
58 suppressed by CMS
Actelion Pharmaceuticals US, Inc.
Exact reporting entity; no affiliate inference
2025 UPTRAVI
open payments reported associated product
CMS Open Payments — General Payments
21562 supporting records · 9341 recipient NPIs · example record 1174163984
Uptravi · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
27 11
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
150 52

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Trelegy ElliptaFluticasone/Umeclidin/Vilanter15052
Albuterol Sulfate HfaAlbuterol Sulfate13050
Breo ElliptaFluticasone/Vilanterol6925
OpsumitMacitentan58suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol5316
Montelukast SodiumMontelukast Sodium4620
TadalafilTadalafil41suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl27suppressed
SymbicortBudesonide/Formoterol Fumarate2711
PrednisonePrednisone2513
Spiriva HandihalerTiotropium Bromide21suppressed
Spiriva RespimatTiotropium Bromide21suppressed
Ventolin HfaAlbuterol Sulfate21suppressed
EliquisApixaban17suppressed
Sildenafil CitrateSildenafil Citrate17suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol16suppressed
AzithromycinAzithromycin14suppressed
Combivent RespimatIpratropium/Albuterol Sulfate13suppressed
AdcircaTadalafil12suppressed
Advair HfaFluticasone Propion/Salmeterol12suppressed
Incruse ElliptaUmeclidinium Bromide12suppressed
UptraviSelexipag11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $543.48 · 36 records GlaxoSmithKline, LLC. AREXVY, FLOWTRIEVER, NUCALA, TEZSPIRE, TRELEGY ELLIPTA, UPTRAVI, WINREVAIR, Xolair, YUPELRI 4
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error