Healthcare provider profile · identity verified

Keith W Leung, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · RENTON, WA · NPI 1306032446

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 Keith W Leung, MD received $320.08 in general payments during 2025 across 10 reported records.

SEAGEN INC. accounted for 30.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ibrance, Imbruvica.

ABBVIE 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 IMBRUVICA as an associated drug or biological on 15599 records involving 6881 distinct recipient NPIs. Public Medicare Part D data also shows 43 claims for Imbruvica 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 CALQUENCE as an associated drug or biological on 8404 records involving 3935 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Calquence by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 58 claims for Eliquis by this doctor in 2024.

Janssen Biotech, 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 IMBRUVICA as an associated drug or biological on 47 records involving 33 distinct recipient NPIs. Public Medicare Part D data also shows 43 claims for Imbruvica by this doctor in 2024.

Janssen Biotech, 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 XARELTO as an associated drug or biological on 24 records involving 23 distinct recipient NPIs. Public Medicare Part D data also shows 58 claims for Xarelto by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 58 claims for Eliquis by this doctor in 2024.

PFIZER 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 IBRANCE as an associated drug or biological on 11505 records involving 4934 distinct recipient NPIs. Public Medicare Part D data also shows 43 claims for Ibrance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$320.08

10 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
SEAGEN INC. Unresolved — no canonical attribution shown $96.0030.0%12025
ABBVIE INC. Unresolved — no canonical attribution shown $49.2515.4%22025
PFIZER INC. Unresolved — no canonical attribution shown $45.9114.3%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $42.8313.4%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $29.239.1%12025
Tempus AI, Inc Unresolved — no canonical attribution shown $23.047.2%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $19.916.2%12025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $13.914.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$224.089
Education$96.001

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
EPKINLY
Normalized: epkinly
Drug ABBVIE INC. $49.25 2 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $42.83 1 2025
Source payment records
TECVAYLI
Normalized: tecvayli
Biological Janssen Biotech, Inc. $42.83 1 2025
Source payment records
XTANDI
Normalized: xtandi
Drug PFIZER INC. $38.99 1 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $28.92 1 2025
Source payment records
XT CDX
Normalized: xt cdx
Device Tempus AI, Inc $23.04 1 2025
Source payment records
OPDUALAG
Normalized: opdualag
Drug E.R. Squibb & Sons, L.L.C. $19.91 1 2025
Source payment records
DATROWAY
Normalized: datroway
Drug Daiichi Sankyo Inc. $13.91 1 2025
Source payment records
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $6.92 1 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug PFIZER INC. $6.92 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
IBRANCE
ibrance
2025 Ibrance 2024 43
Beneficiary count suppressed
exact normalized Medicare Part D
IMBRUVICA
imbruvica
2025 Imbruvica 2024 43
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 IMBRUVICA
open payments reported associated product
CMS Open Payments — General Payments
15599 supporting records · 6881 recipient NPIs · example record 1201352838
Imbruvica · 2024
Exact normalized brand match · 1 Part D row
43 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 CALQUENCE
open payments reported associated product
CMS Open Payments — General Payments
8404 supporting records · 3935 recipient NPIs · example record 1206131382
Calquence · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
58 13
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 IMBRUVICA
open payments reported associated product
CMS Open Payments — General Payments
47 supporting records · 33 recipient NPIs · example record 1174328453
Imbruvica · 2024
Exact normalized brand match · 1 Part D row
43 suppressed by CMS
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 XARELTO
open payments reported associated product
CMS Open Payments — General Payments
24 supporting records · 23 recipient NPIs · example record 1174259978
Xarelto · 2024
Exact normalized brand match · 1 Part D row
58 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
58 13
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 IBRANCE
open payments reported associated product
CMS Open Payments — General Payments
11505 supporting records · 4934 recipient NPIs · example record 1228794164
Ibrance · 2024
Exact normalized brand match · 1 Part D row
43 suppressed by CMS

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
AnastrozoleAnastrozole16848
DexamethasoneDexamethasone10937
PrednisonePrednisone8735
AcyclovirAcyclovir7115
Oxycodone HclOxycodone Hcl6015
EliquisApixaban5813
XareltoRivaroxaban58suppressed
Ondansetron HclOndansetron Hcl5437
Prochlorperazine MaleateProchlorperazine Maleate5338
Tamoxifen CitrateTamoxifen Citrate5014
Potassium ChloridePotassium Chloride4612
Trazodone HclTrazodone Hcl45suppressed
IbrancePalbociclib43suppressed
ImbruvicaIbrutinib43suppressed
RevlimidLenalidomide41suppressed
Lidocaine-PrilocaineLidocaine/Prilocaine3830
Alendronate SodiumAlendronate Sodium37suppressed
Abiraterone AcetateAbiraterone Acetate33suppressed
PomalystPomalidomide33suppressed
FurosemideFurosemide30suppressed
Ondansetron OdtOndansetron30suppressed
Pantoprazole SodiumPantoprazole Sodium30suppressed
FentanylFentanyl26suppressed
Levothyroxine SodiumLevothyroxine Sodium25suppressed
HydroxyureaHydroxyurea24suppressed
LetrozoleLetrozole22suppressed
GabapentinGabapentin21suppressed
JakafiRuxolitinib Phosphate21suppressed
OmeprazoleOmeprazole21suppressed
LorazepamLorazepam20suppressed
VerzenioAbemaciclib20suppressed
Zolpidem TartrateZolpidem Tartrate18suppressed
Anagrelide HclAnagrelide Hcl17suppressed
BrukinsaZanubrutinib17suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen16suppressed
Sertraline HclSertraline Hcl16suppressed
LenalidomideLenalidomide15suppressed
AranespDarbepoetin Alfa In Polysorbat14suppressed
ExemestaneExemestane14suppressed
FamotidineFamotidine14suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14suppressed
NystatinNystatin14suppressed
PromactaEltrombopag Olamine14suppressed
ValacyclovirValacyclovir Hcl14suppressed
AzithromycinAzithromycin13suppressed
CalquenceAcalabrutinib Maleate13suppressed
Tamsulosin HclTamsulosin Hcl13suppressed
HydrocortisoneHydrocortisone12suppressed
Imatinib MesylateImatinib Mesylate12suppressed
NinlaroIxazomib Citrate12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed

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 $320.08 · 10 records SEAGEN INC. DARZALEX, DATROWAY, EPKINLY, IBRANCE, IMBRUVICA, OPDUALAG, TECVAYLI, TUKYSA, XT CDX, XTANDI 7
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