Healthcare provider profile · identity verified

Christopher Warren Stumbo, MD

Allopathic & Osteopathic Physicians|Family Medicine · HAZARD, KY · NPI 1962962548

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 Christopher Warren Stumbo, MD received $324.69 in general payments during 2025 across 18 reported records.

VERTEX PHARMACEUTICALS INCORPORATED accounted for 13.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 16 associated products.

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

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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 55 claims for Farxiga 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 17 claims for Symbicort by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 44 claims for Jardiance 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 15 claims for Trelegy Ellipta 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 44 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 11 claims for Mounjaro by this doctor in 2024.

Merck Sharp & Dohme 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 VERQUVO as an associated drug or biological on 38060 records involving 12268 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Verquvo 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 52 claims for Entresto 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 99 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Paxlovid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$324.69

18 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
VERTEX PHARMACEUTICALS INCORPORATED Unresolved — no canonical attribution shown $42.4913.1%22025
Agios Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $42.4513.1%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $39.7212.2%22025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $34.0010.5%22025
PFIZER INC. Unresolved — no canonical attribution shown $28.568.8%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $20.656.4%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $19.346.0%12025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $18.925.8%12025
Amgen Inc. Unresolved — no canonical attribution shown $17.915.5%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $17.425.4%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $14.784.5%12025
EVOKE PHARMA, INC. Unresolved — no canonical attribution shown $14.284.4%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $14.174.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$324.6918

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
JOURNAVX
Normalized: journavx
Drug VERTEX PHARMACEUTICALS INCORPORATED $42.49 2 2025
Source payment records
PYRUKYND
Normalized: pyrukynd
Drug Agios Pharmaceuticals, Inc. $42.45 2 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $39.72 2 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $34.00 2 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $28.56 2 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $28.56 2 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $20.65 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $19.34 1 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $18.92 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $17.91 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $17.91 1 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $17.42 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $14.78 1 2025
Source payment records
GIMOTI
Normalized: gimoti
Drug EVOKE PHARMA, INC. $14.28 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $14.17 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $14.17 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
ELIQUIS
eliquis
2025 Eliquis 2024 99 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 44
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 15
Beneficiary count suppressed
exact normalized Medicare Part D
VERQUVO
verquvo
2025 Verquvo 2024 13
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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
55 17
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
17 suppressed by CMS
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
44 suppressed by CMS
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
15 suppressed by CMS
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
44 suppressed by CMS
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
11 suppressed by CMS
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 VERQUVO
open payments reported associated product
CMS Open Payments — General Payments
38060 supporting records · 12268 recipient NPIs · example record 1237992208
Verquvo · 2024
Exact normalized brand match · 1 Part D row
13 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
52 15
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
99 25
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
19 19

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
GabapentinGabapentin494129
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen37482
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen35892
Atorvastatin CalciumAtorvastatin Calcium32887
Rosuvastatin CalciumRosuvastatin Calcium31386
Levothyroxine SodiumLevothyroxine Sodium30770
LisinoprilLisinopril28184
Amlodipine BesylateAmlodipine Besylate23954
ClonazepamClonazepam23059
Pantoprazole SodiumPantoprazole Sodium21768
Tramadol HclTramadol Hcl17760
Metoprolol TartrateMetoprolol Tartrate17444
Metoprolol SuccinateMetoprolol Succinate16441
Fluticasone PropionateFluticasone Propionate16264
Metformin HclMetformin Hcl15445
FurosemideFurosemide13245
Albuterol Sulfate HfaAlbuterol Sulfate12830
Isosorbide Mononitrate ErIsosorbide Mononitrate12531
OmeprazoleOmeprazole12336
Losartan PotassiumLosartan Potassium11933
ClopidogrelClopidogrel Bisulfate11833
Tamsulosin HclTamsulosin Hcl11236
Trazodone HclTrazodone Hcl10727
Potassium ChloridePotassium Chloride10140
Buspirone HclBuspirone Hcl9929
EliquisApixaban9925
Hydralazine HclHydralazine Hcl9829
BumetanideBumetanide9630
Doxycycline HyclateDoxycycline Hyclate9677
HydrochlorothiazideHydrochlorothiazide9131
Escitalopram OxalateEscitalopram Oxalate8820
PrednisonePrednisone8571
PregabalinPregabalin7919
Tizanidine HclTizanidine Hcl7718
SimvastatinSimvastatin7524
DiazepamDiazepam7124
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav6965
AllopurinolAllopurinol6724
CarvedilolCarvedilol6616
Quetiapine FumarateQuetiapine Fumarate61suppressed
AlprazolamAlprazolam6018
Donepezil HclDonepezil Hcl5913
FamotidineFamotidine5824
Cyclobenzaprine HclCyclobenzaprine Hcl5714
Ondansetron HclOndansetron Hcl5724
FarxigaDapagliflozin Propanediol5517
GlipizideGlipizide5318
MeloxicamMeloxicam5316
EntrestoSacubitril/Valsartan5215
Clindamycin HclClindamycin Hcl5044
CilostazolCilostazol49suppressed
Citalopram HbrCitalopram Hydrobromide49suppressed
Montelukast SodiumMontelukast Sodium4919
Ropinirole HclRopinirole Hcl4911
Sertraline HclSertraline Hcl4716
Bupropion XlBupropion Hcl45suppressed
JardianceEmpagliflozin44suppressed
Oxycodone HclOxycodone Hcl4413
Amiodarone HclAmiodarone Hcl4314
Fluoxetine HclFluoxetine Hcl43suppressed
IbuprofenIbuprofen4318
Diclofenac SodiumDiclofenac Sodium4228
Metoclopramide HclMetoclopramide Hcl42suppressed
SpironolactoneSpironolactone4213
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim4238
Hydroxyzine PamoateHydroxyzine Pamoate4115
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide39suppressed
SucralfateSucralfate3713
LevetiracetamLevetiracetam36suppressed
MethotrexateMethotrexate Sodium36suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride3513
Hydroxyzine HclHydroxyzine Hcl3411
JanuviaSitagliptin Phosphate33suppressed
OzempicSemaglutide3212
DapagliflozinDapagliflozin Propanediol31suppressed
Duloxetine HclDuloxetine Hcl31suppressed
FluconazoleFluconazole3121
MirtazapineMirtazapine31suppressed
CelecoxibCelecoxib30suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium30suppressed
GlyxambiEmpagliflozin/Linagliptin30suppressed
NitroglycerinNitroglycerin3013
Triamcinolone AcetonideTriamcinolone Acetonide3014
Venlafaxine Hcl ErVenlafaxine Hcl30suppressed
Ipratropium BromideIpratropium Bromide2911
Dicyclomine HclDicyclomine Hcl28suppressed
ChlorthalidoneChlorthalidone26suppressed
Metformin Hcl ErMetformin Hcl25suppressed
Ondansetron OdtOndansetron2516
AzithromycinAzithromycin2423
Diltiazem HclDiltiazem Hcl24suppressed
MethocarbamolMethocarbamol24suppressed
SynthroidLevothyroxine Sodium24suppressed
CefdinirCefdinir2321
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2319
Divalproex SodiumDivalproex Sodium22suppressed
FinasterideFinasteride22suppressed
LinzessLinaclotide22suppressed
NystopNystatin2212
Vitamin D2Ergocalciferol (Vitamin D2)22suppressed
AtenololAtenolol21suppressed
LevofloxacinLevofloxacin2117
Megestrol AcetateMegestrol Acetate2111
Repatha SureclickEvolocumab21suppressed
TopiramateTopiramate20suppressed
PaxlovidNirmatrelvir/Ritonavir1919
Tresiba Flextouch U-200Insulin Degludec19suppressed
Alendronate SodiumAlendronate Sodium18suppressed
Bisoprolol FumarateBisoprolol Fumarate18suppressed
GlyburideGlyburide18suppressed
MupirocinMupirocin1813
PrimidonePrimidone18suppressed
Glipizide ErGlipizide17suppressed
LatanoprostLatanoprost17suppressed
PhenobarbitalPhenobarbital17suppressed
SymbicortBudesonide/Formoterol Fumarate17suppressed
ConstuloseLactulose16suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide16suppressed
Clonidine HclClonidine Hcl15suppressed
Combivent RespimatIpratropium/Albuterol Sulfate15suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
Meclizine HclMeclizine Hcl15suppressed
Midodrine HclMidodrine Hcl15suppressed
NystatinNystatin15suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter15suppressed
Warfarin SodiumWarfarin Sodium15suppressed
EzetimibeEzetimibe14suppressed
Isosorbide DinitrateIsosorbide Dinitrate14suppressed
Paroxetine HclParoxetine Hcl14suppressed
Ranolazine ErRanolazine14suppressed
XareltoRivaroxaban14suppressed
Breo ElliptaFluticasone/Vilanterol13suppressed
CephalexinCephalexin1312
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Promethazine HclPromethazine Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
Testosterone CypionateTestosterone Cypionate13suppressed
VerquvoVericiguat13suppressed
Zolpidem TartrateZolpidem Tartrate13suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads12suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide12suppressed
CeftriaxoneCeftriaxone Sodium12suppressed
CyclosporineCyclosporine12suppressed
LamotrigineLamotrigine12suppressed
LorazepamLorazepam12suppressed
Methenamine HippurateMethenamine Hippurate12suppressed
Nortriptyline HclNortriptyline Hcl12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
Amitriptyline HclAmitriptyline Hcl11suppressed
Easy Touch Pen NeedlePen Needle, Diabetic11suppressed
GlimepirideGlimepiride11suppressed
MounjaroTirzepatide11suppressed
NitrofurantoinNitrofurantoin Macrocrystal11suppressed
Novolin 70-30Insulin Nph Hum/Reg Insulin Hm11suppressed
Sodium Chloride0.9 % Sodium Chloride11suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl11suppressed

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 $324.69 · 18 records VERTEX PHARMACEUTICALS INCORPORATED AIRSUPRA, CAPLYTA, ELIQUIS, GIMOTI, JARDIANCE, JOURNAVX, Kerendia, LEQVIO, MOUNJARO, NURTEC ODT, OTEZLA, PYRUKYND, REPATHA, TRELEGY ELLIPTA, VERQUVO, ZEPBOUND 10
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