Healthcare provider profile · identity verified

David E Weng, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology · CHEVY CHASE, MD · NPI 1831154731

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 David E Weng, MD received $4,108.67 in general payments during 2025 across 72 reported records.

Novartis Pharmaceuticals Corporation accounted for 33.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 48 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Imbruvica, Jakafi, Venclexta, Verzenio, Xtandi.

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 26 claims for Imbruvica by this doctor in 2024.

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 VENCLEXTA as an associated drug or biological on 10417 records involving 4944 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Venclexta by this doctor in 2024.

Astellas Pharma 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 Xtandi as an associated drug or biological on 11345 records involving 5418 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Xtandi by this doctor in 2024.

Celgene Corporation 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 25 records involving 24 distinct recipient NPIs. Public Medicare Part D data also shows 75 claims for Eliquis 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 75 claims for Eliquis by this doctor in 2024.

Genentech USA, 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 Venclexta as an associated drug or biological on 2896 records involving 2018 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Venclexta by this doctor in 2024.

Incyte Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JAKAFI as an associated drug or biological on 14854 records involving 6477 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Jakafi 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 26 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 16 claims for Xarelto by this doctor in 2024.

Lilly USA, 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 VERZENIO as an associated drug or biological on 9278 records involving 4763 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Verzenio 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 75 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 19 claims for Ibrance 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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Xtandi by this doctor in 2024.

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

Payment overview · 2025

General Payments

$4,108.67

72 reported records · 30 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
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $1,385.9033.7%222025
Incyte Corporation Unresolved — no canonical attribution shown $1,122.5227.3%22025
Cardinal Health 110 LLC Unresolved — no canonical attribution shown $275.006.7%12025
ABBVIE INC. Unresolved — no canonical attribution shown $128.703.1%52025
PFIZER INC. Unresolved — no canonical attribution shown $117.462.9%52025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $110.732.7%22025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $100.672.5%42025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $94.402.3%32025
Tempus AI, Inc Unresolved — no canonical attribution shown $92.182.2%12025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $78.621.9%32025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $53.491.3%22025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $48.671.2%22025
Genentech USA, Inc. Unresolved — no canonical attribution shown $46.461.1%22025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $43.451.1%22025
GENZYME CORPORATION Unresolved — no canonical attribution shown $34.780.8%12025
TerSera Therapeutics LLC Unresolved — no canonical attribution shown $32.420.8%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $31.090.8%12025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $30.620.8%12025
PharmaEssentia USA Corporation Unresolved — no canonical attribution shown $29.840.7%12025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $29.570.7%12025
Eisai Inc. Unresolved — no canonical attribution shown $29.300.7%12025
Celgene Corporation Unresolved — no canonical attribution shown $27.150.7%12025
Coherus Oncology, Inc. Unresolved — no canonical attribution shown $25.880.6%12025
Kite Pharma, Inc. Unresolved — no canonical attribution shown $24.860.6%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $24.100.6%12025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $21.950.5%12025
BIOPROTECT MEDICAL, INC. Unresolved — no canonical attribution shown $21.130.5%12025
Amgen Inc. Unresolved — no canonical attribution shown $18.730.5%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $14.910.4%12025
Azurity Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $14.090.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,537.2758
Consulting Fee$1,375.002
Long term medical supply or device loan$1,196.4012

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
KISQALI
Normalized: kisqali
Drug Novartis Pharmaceuticals Corporation $1,273.23 17 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $100.67 4 2025
Source payment records
XT CDX
Normalized: xt cdx
Device Tempus AI, Inc $92.18 1 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug PFIZER INC. $73.59 3 2025
Source payment records
TALZENNA
Normalized: talzenna
Drug PFIZER INC. $73.59 3 2025
Source payment records
XTANDI
Normalized: xtandi
Drug PFIZER INC. $73.59 3 2025
Source payment records
OJJAARA
Normalized: ojjaara
Drug GlaxoSmithKline, LLC. $60.13 2 2025
Source payment records
Padcev
Normalized: padcev
Drug Astellas Pharma US Inc $53.49 2 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $52.29 2 2025
Source payment records
SCEMBLIX
Normalized: scemblix
Drug Novartis Pharmaceuticals Corporation $49.18 2 2025
Source payment records
Onivyde
Normalized: onivyde
Drug Ipsen Biopharmaceuticals, Inc $48.67 2 2025
Source payment records
ERLEADA
Normalized: erleada
Drug Janssen Biotech, Inc. $47.51 2 2025
Source payment records
ADCETRIS
Normalized: adcetris
Biological PFIZER INC. $43.87 2 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $43.87 2 2025
Source payment records
LIBTAYO
Normalized: libtayo
Biological Regeneron Healthcare Solutions, Inc. $43.45 2 2025
Source payment records
VENCLEXTA
Normalized: venclexta
Biological, Drug ABBVIE INC., Genentech USA, Inc. $43.17 2 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $41.57 2 2025
Source payment records
SARCLISA
Normalized: sarclisa
Biological GENZYME CORPORATION $34.78 1 2025
Source payment records
PLUVICTO
Normalized: pluvicto
Drug Novartis Pharmaceuticals Corporation $34.57 1 2025
Source payment records
JEMPERLI
Normalized: jemperli
Biological GlaxoSmithKline, LLC. $34.27 1 2025
Source payment records
ZEJULA
Normalized: zejula
Drug GlaxoSmithKline, LLC. $34.27 1 2025
Source payment records
BLENREP
Normalized: blenrep
Biological GlaxoSmithKline, LLC. $33.68 1 2025
Source payment records
Xermelo
Normalized: xermelo
Drug TerSera Therapeutics LLC $32.42 1 2025
Source payment records
CARVYKTI
Normalized: carvykti
Drug Janssen Biotech, Inc. $31.11 1 2025
Source payment records
JAYPIRCA
Normalized: jaypirca
Drug Lilly USA, LLC $31.09 1 2025
Source payment records
VERZENIO
Normalized: verzenio
Drug Lilly USA, LLC $31.09 1 2025
Source payment records
ELAHERE
Normalized: elahere
Drug ABBVIE INC. $30.89 1 2025
Source payment records
BRUKINSA
Normalized: brukinsa
Drug BeOne Medicines USA, Inc. $30.62 1 2025
Source payment records
EPKINLY
Normalized: epkinly
Drug ABBVIE INC. $30.57 1 2025
Source payment records
BESREMI
Normalized: besremi
Drug PharmaEssentia USA Corporation $29.84 1 2025
Source payment records
Enhertu
Normalized: enhertu
Drug Daiichi Sankyo Inc. $29.57 1 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $29.30 1 2025
Source payment records
LUTATHERA
Normalized: lutathera
Drug Novartis Pharmaceuticals Corporation $28.92 2 2025
Source payment records
Itovebi
Normalized: itovebi
Biological Genentech USA, Inc. $28.07 1 2025
Source payment records
REBLOZYL
Normalized: reblozyl
Biological Celgene Corporation $27.15 1 2025
Source payment records
LOQTORZI
Normalized: loqtorzi
Biological Coherus Oncology, Inc. $25.88 1 2025
Source payment records
Yescarta
Normalized: yescarta
Drug Kite Pharma, Inc. $24.86 1 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Biotech, Inc. $23.35 1 2025
Source payment records
JAKAFI
Normalized: jakafi
Drug Incyte Corporation $22.52 1 2025
Source payment records
MONJUVI
Normalized: monjuvi
Drug Incyte Corporation $22.52 1 2025
Source payment records
BOSULIF
Normalized: bosulif
Drug PFIZER INC. $22.11 1 2025
Source payment records
ICLUSIG
Normalized: iclusig
Drug Takeda Pharmaceuticals U.S.A., Inc. $21.95 1 2025
Source payment records
BIOPROTECT BALLOON IMPLANT SYSTEM
Normalized: bioprotect balloon implant system
Device BIOPROTECT MEDICAL, INC. $21.13 1 2025
Source payment records
LUPRON DEPOT
Normalized: lupron depot
Drug ABBVIE INC. $20.74 1 2025
Source payment records
OPDIVO
Normalized: opdivo
Biological E.R. Squibb & Sons, L.L.C. $20.61 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $18.73 1 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological Merck Sharp & Dohme LLC $16.93 1 2025
Source payment records
VIVIMUSTA
Normalized: vivimusta
Drug Azurity Pharmaceuticals, Inc. $14.09 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
IMBRUVICA
imbruvica
2025 Imbruvica 2024 26
Beneficiary count suppressed
exact normalized Medicare Part D
JAKAFI
jakafi
2025 Jakafi 2024 21
Beneficiary count suppressed
exact normalized Medicare Part D
VENCLEXTA
venclexta
2025 Venclexta 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
VERZENIO
verzenio
2025 Verzenio 2024 25
Beneficiary count suppressed
exact normalized Medicare Part D
XTANDI
xtandi
2025 Xtandi 2024 35
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
26 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 VENCLEXTA
open payments reported associated product
CMS Open Payments — General Payments
10417 supporting records · 4944 recipient NPIs · example record 1201353144
Venclexta · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Astellas Pharma US Inc
Exact reporting entity; no affiliate inference
2025 Xtandi
open payments reported associated product
CMS Open Payments — General Payments
11345 supporting records · 5418 recipient NPIs · example record 1238560686
Xtandi · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
Celgene Corporation
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
25 supporting records · 24 recipient NPIs · example record 1184385048
Eliquis · 2024
Exact normalized brand match · 1 Part D row
75 20
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
75 20
Genentech USA, Inc.
Exact reporting entity; no affiliate inference
2025 Venclexta
open payments reported associated product
CMS Open Payments — General Payments
2896 supporting records · 2018 recipient NPIs · example record 1211488584
Venclexta · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Incyte Corporation
Exact reporting entity; no affiliate inference
2025 JAKAFI
open payments reported associated product
CMS Open Payments — General Payments
14854 supporting records · 6477 recipient NPIs · example record 1225959940
Jakafi · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
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
26 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
16 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 VERZENIO
open payments reported associated product
CMS Open Payments — General Payments
9278 supporting records · 4763 recipient NPIs · example record 1186464449
Verzenio · 2024
Exact normalized brand match · 1 Part D row
25 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
75 20
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
19 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 XTANDI
open payments reported associated product
CMS Open Payments — General Payments
19368 supporting records · 7657 recipient NPIs · example record 1228794230
Xtandi · 2024
Exact normalized brand match · 1 Part D row
35 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
AnastrozoleAnastrozole24574
LetrozoleLetrozole10231
EliquisApixaban7520
Tamoxifen CitrateTamoxifen Citrate6518
Levothyroxine SodiumLevothyroxine Sodium5712
ExemestaneExemestane51suppressed
Oxycodone HclOxycodone Hcl5118
GabapentinGabapentin4915
PrednisonePrednisone4016
Ondansetron HclOndansetron Hcl3723
XtandiEnzalutamide35suppressed
Lidocaine-PrilocaineLidocaine/Prilocaine2917
LorazepamLorazepam2912
Zolpidem TartrateZolpidem Tartrate29suppressed
ImbruvicaIbrutinib26suppressed
OlanzapineOlanzapine26suppressed
Pantoprazole SodiumPantoprazole Sodium25suppressed
VerzenioAbemaciclib25suppressed
Abiraterone AcetateAbiraterone Acetate23suppressed
JakafiRuxolitinib Phosphate21suppressed
EverolimusEverolimus20suppressed
Potassium ChloridePotassium Chloride20suppressed
DexamethasoneDexamethasone1912
IbrancePalbociclib19suppressed
Tramadol HclTramadol Hcl19suppressed
AcyclovirAcyclovir17suppressed
HydroxyureaHydroxyurea17suppressed
Prochlorperazine MaleateProchlorperazine Maleate17suppressed
OrserduElacestrant Hcl16suppressed
PregabalinPregabalin16suppressed
XareltoRivaroxaban16suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine15suppressed
HydrochlorothiazideHydrochlorothiazide14suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim14suppressed
FamotidineFamotidine13suppressed
NubeqaDarolutamide13suppressed
Tamsulosin HclTamsulosin Hcl13suppressed
Amlodipine BesylateAmlodipine Besylate12suppressed
EntecavirEntecavir12suppressed
Raloxifene HclRaloxifene Hcl12suppressed
Sertraline HclSertraline Hcl12suppressed
Erlotinib HclErlotinib Hcl11suppressed
Losartan PotassiumLosartan Potassium11suppressed
Ondansetron OdtOndansetron11suppressed
TafinlarDabrafenib Mesylate11suppressed
VenclextaVenetoclax11suppressed
Venlafaxine Hcl ErVenlafaxine Hcl11suppressed
Zolpidem Tartrate ErZolpidem Tartrate11suppressed

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 $4,108.67 · 72 records Novartis Pharmaceuticals Corporation ADCETRIS, BESREMI, BIOPROTECT BALLOON IMPLANT SYSTEM, BLENREP, BOSULIF, BRUKINSA, CARVYKTI, ELAHERE, ELREXFIO, EPKINLY, ERLEADA, EVENITY, Enhertu, ICLUSIG, IMBRUVICA, Itovebi, JAKAFI, JAYPIRCA, JEMPERLI, KEYTRUDA, KEYTRUDA QLEX, KISQALI, LIBTAYO, LOQTORZI, LUPRON DEPOT, LUTATHERA, LYNPARZA, Lenvima, MONJUVI, OJJAARA, OPDIVO, ORGOVYX, Onivyde, PLUVICTO, Padcev, REBLOZYL, RYBREVANT, SARCLISA, SCEMBLIX, TALZENNA, VENCLEXTA, VERZENIO, VIVIMUSTA, XT CDX, XTANDI, Xermelo, Yescarta, ZEJULA 13
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

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