Healthcare provider profile · identity verified

Darren R. Haskell, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · CHESTERFIELD, MO · NPI 1689636813

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 Darren R. Haskell, M.D. received $671.01 in general payments during 2025 across 34 reported records.

Amgen Inc. accounted for 23.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 19 associated products.

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

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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Linzess 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 43 claims for Synthroid 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 AREXVY as an associated drug or biological on 47563 records involving 28786 distinct recipient NPIs. Public Medicare Part D data also shows 51 claims for Arexvy 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 128 claims for Jardiance 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Mounjaro by this doctor in 2024.

Novartis Pharmaceuticals 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 ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Entresto by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 39 claims for Ozempic 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 197 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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Nurtec Odt by this doctor in 2024.

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

Payment overview · 2025

General Payments

$671.01

34 reported records · 13 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
Amgen Inc. Unresolved — no canonical attribution shown $155.7823.2%122025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $146.4321.8%72025
Stryker Corporation Unresolved — no canonical attribution shown $94.2314.0%12025
ANI Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $47.737.1%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $36.305.4%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $31.934.8%22025
Abbott Laboratories Unresolved — no canonical attribution shown $31.514.7%22025
UCB, Inc. Unresolved — no canonical attribution shown $28.064.2%12025
Esperion Therapeutics, Inc. Unresolved — no canonical attribution shown $27.064.0%12025
PFIZER INC. Unresolved — no canonical attribution shown $21.073.1%12025
ABBVIE INC. Unresolved — no canonical attribution shown $17.782.6%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $16.952.5%12025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $16.182.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$671.0134

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
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $146.43 7 2025
Source payment records
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION
Normalized: blueprint patient specific instrumentation
Device Stryker Corporation $94.23 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $68.96 5 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $66.08 6 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $66.08 6 2025
Source payment records
PURIFIED CORTROPHIN GEL
Normalized: purified cortrophin gel
Drug ANI Pharmaceuticals, Inc. $47.73 2 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $41.65 3 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $36.30 2 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $31.93 2 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $31.93 2 2025
Source payment records
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $31.51 2 2025
Source payment records
Bimzelx
Normalized: bimzelx
Biological UCB, Inc. $28.06 1 2025
Source payment records
NEXLETOL
Normalized: nexletol
Drug Esperion Therapeutics, Inc. $27.06 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $21.07 1 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $20.74 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $17.78 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $16.95 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $16.95 1 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $16.18 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
AREXVY
arexvy
2025 Arexvy 2024 51 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 17
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 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
25 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
43 13
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 AREXVY
open payments reported associated product
CMS Open Payments — General Payments
47563 supporting records · 28786 recipient NPIs · example record 1190332445
Arexvy · 2024
Exact normalized brand match · 1 Part D row
51 51
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
128 27
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
39 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
197 29
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
18 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
Atorvastatin CalciumAtorvastatin Calcium1257338
Levothyroxine SodiumLevothyroxine Sodium583128
Rosuvastatin CalciumRosuvastatin Calcium508140
Amlodipine BesylateAmlodipine Besylate496139
Metoprolol SuccinateMetoprolol Succinate478122
Losartan PotassiumLosartan Potassium446123
HydrochlorothiazideHydrochlorothiazide28973
AlprazolamAlprazolam24266
IrbesartanIrbesartan24152
Escitalopram OxalateEscitalopram Oxalate23660
Tamsulosin HclTamsulosin Hcl23064
LisinoprilLisinopril21259
FurosemideFurosemide20751
EliquisApixaban19729
OmeprazoleOmeprazole19346
SimvastatinSimvastatin18745
GabapentinGabapentin16946
Pantoprazole SodiumPantoprazole Sodium15846
AllopurinolAllopurinol15530
Potassium ChloridePotassium Chloride14645
Metformin HclMetformin Hcl14040
Tramadol HclTramadol Hcl13947
ClopidogrelClopidogrel Bisulfate13136
JardianceEmpagliflozin12827
Donepezil HclDonepezil Hcl12717
Trazodone HclTrazodone Hcl12525
Metoprolol TartrateMetoprolol Tartrate12032
EzetimibeEzetimibe11532
Sertraline HclSertraline Hcl11328
Diltiazem 24hr Er (Cd)Diltiazem Hcl11221
CarvedilolCarvedilol9430
FinasterideFinasteride8625
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8122
Zolpidem TartrateZolpidem Tartrate8025
Bupropion XlBupropion Hcl7821
JanuviaSitagliptin Phosphate7820
Pravastatin SodiumPravastatin Sodium7721
Fluticasone PropionateFluticasone Propionate7625
Hydralazine HclHydralazine Hcl7419
Alendronate SodiumAlendronate Sodium6823
MeloxicamMeloxicam6821
Memantine HclMemantine Hcl66suppressed
NaproxenNaproxen6522
MethylprednisoloneMethylprednisolone6459
SpironolactoneSpironolactone6315
Metformin Hcl ErMetformin Hcl6220
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide6119
MyrbetriqMirabegron5713
Albuterol Sulfate HfaAlbuterol Sulfate5329
Oxybutynin Chloride ErOxybutynin Chloride53suppressed
ArexvyRsvpref3 Antigen/As01e/Pf5151
Quetiapine FumarateQuetiapine Fumarate51suppressed
CelecoxibCelecoxib5012
FenofibrateFenofibrate4912
Ipratropium BromideIpratropium Bromide4915
Montelukast SodiumMontelukast Sodium4715
Warfarin SodiumWarfarin Sodium47suppressed
AtenololAtenolol4613
BaclofenBaclofen4627
SynthroidLevothyroxine Sodium4313
FamotidineFamotidine4214
Citalopram HbrCitalopram Hydrobromide4115
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4120
Duloxetine HclDuloxetine Hcl40suppressed
Azelastine HclAzelastine Hcl3913
ClonazepamClonazepam39suppressed
MirtazapineMirtazapine3911
OzempicSemaglutide39suppressed
FarxigaDapagliflozin Propanediol38suppressed
Clonidine HclClonidine Hcl37suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3730
ValacyclovirValacyclovir Hcl3715
BumetanideBumetanide35suppressed
GlimepirideGlimepiride35suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate35suppressed
Tizanidine HclTizanidine Hcl3515
Doxycycline HyclateDoxycycline Hyclate3326
TradjentaLinagliptin33suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3314
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid33suppressed
NitroglycerinNitroglycerin3219
Fluoxetine HclFluoxetine Hcl30suppressed
XareltoRivaroxaban28suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium27suppressed
PrednisonePrednisone2723
LinzessLinaclotide25suppressed
Ropinirole HclRopinirole Hcl25suppressed
Amitriptyline HclAmitriptyline Hcl24suppressed
AzithromycinAzithromycin2422
Glipizide ErGlipizide24suppressed
IbuprofenIbuprofen24suppressed
ValsartanValsartan24suppressed
Benazepril HclBenazepril Hcl23suppressed
Carbidopa-LevodopaCarbidopa/Levodopa23suppressed
Ciprofloxacin HclCiprofloxacin Hcl2319
PrimidonePrimidone23suppressed
RamiprilRamipril23suppressed
Olmesartan MedoxomilOlmesartan Medoxomil22suppressed
Oxybutynin ChlorideOxybutynin Chloride22suppressed
Nebivolol HclNebivolol Hcl21suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan20suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide20suppressed
Paroxetine HclParoxetine Hcl20suppressed
Propranolol HclPropranolol Hcl20suppressed
Propranolol Hcl ErPropranolol Hcl20suppressed
Diclofenac PotassiumDiclofenac Potassium19suppressed
LovastatinLovastatin19suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1818
DutasterideDutasteride18suppressed
LorazepamLorazepam18suppressed
Nurtec OdtRimegepant Sulfate18suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr17suppressed
DigoxinDigoxin17suppressed
MounjaroTirzepatide17suppressed
Colesevelam HclColesevelam Hcl16suppressed
EntrestoSacubitril/Valsartan16suppressed
Sildenafil CitrateSildenafil Citrate16suppressed
DiazepamDiazepam15suppressed
Diltiazem 24hr ErDiltiazem Hcl15suppressed
Methenamine HippurateMethenamine Hippurate15suppressed
Repatha SureclickEvolocumab15suppressed
Alfuzosin Hcl ErAlfuzosin Hcl14suppressed
GemtesaVibegron14suppressed
Ondansetron OdtOndansetron14suppressed
Raloxifene HclRaloxifene Hcl14suppressed
ColchicineColchicine13suppressed
Buspirone HclBuspirone Hcl12suppressed
CefdinirCefdinir1211
Nortriptyline HclNortriptyline Hcl12suppressed
Ondansetron HclOndansetron Hcl12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
Vitamin D2Ergocalciferol (Vitamin D2)12suppressed
ZaleplonZaleplon12suppressed
AcyclovirAcyclovir11suppressed
ConcertaMethylphenidate Hcl11suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
Dicyclomine HclDicyclomine Hcl11suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine11suppressed
FluconazoleFluconazole11suppressed
GlipizideGlipizide11suppressed
IndomethacinIndomethacin11suppressed
TadalafilTadalafil11suppressed

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 $671.01 · 34 records Amgen Inc. AREXVY, BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION, Bimzelx, EVENITY, FREESTYLE LIBRE 3, LEQVIO, MOUNJARO, NEXLETOL, OTEZLA, PAXLOVID, PROLIA, PURIFIED CORTROPHIN GEL, REPATHA, SHINGRIX, TAVNEOS, UBRELVY, VOQUEZNA, Wegovy, ZEPBOUND 9
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