Healthcare provider profile · identity verified

Abdulkader Dahhan, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · HARLAN, KY · NPI 1639134794

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 Abdulkader Dahhan, M.D. received $188.13 in general payments during 2025 across 10 reported records.

GlaxoSmithKline, LLC. accounted for 28.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

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 29 claims for Trelegy Ellipta 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 325 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$188.13

10 reported records · 7 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 $52.9928.2%22025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $32.7117.4%22025
Exact Sciences Corporation Unresolved — no canonical attribution shown $29.9015.9%22025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $21.5411.4%12025
VERTEX PHARMACEUTICALS INCORPORATED Unresolved — no canonical attribution shown $20.1410.7%12025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $15.898.4%12025
PFIZER INC. Unresolved — no canonical attribution shown $14.968.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$188.1310

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
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $52.99 2 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $32.71 2 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $29.90 2 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $21.54 1 2025
Source payment records
JOURNAVX
Normalized: journavx
Drug VERTEX PHARMACEUTICALS INCORPORATED $20.14 1 2025
Source payment records
DUPIXENT
Normalized: dupixent
Biological Regeneron Healthcare Solutions, Inc. $15.89 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $14.96 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $14.96 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
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
29 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
325 39

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
Metoprolol TartrateMetoprolol Tartrate662127
Amlodipine BesylateAmlodipine Besylate574119
LisinoprilLisinopril541113
Metformin HclMetformin Hcl538114
GabapentinGabapentin48375
Levothyroxine SodiumLevothyroxine Sodium46586
Atorvastatin CalciumAtorvastatin Calcium41283
FurosemideFurosemide410102
Pantoprazole SodiumPantoprazole Sodium41087
GlipizideGlipizide37264
EliquisApixaban32539
MeloxicamMeloxicam28064
OmeprazoleOmeprazole26451
SimvastatinSimvastatin26355
Albuterol Sulfate HfaAlbuterol Sulfate24783
PrednisonePrednisone24368
AmoxicillinAmoxicillin232163
CephalexinCephalexin229153
ClopidogrelClopidogrel Bisulfate22046
HydrochlorothiazideHydrochlorothiazide20850
Losartan PotassiumLosartan Potassium20346
AzithromycinAzithromycin198139
Tamsulosin HclTamsulosin Hcl18636
Hydralazine HclHydralazine Hcl18431
AllopurinolAllopurinol17638
LorazepamLorazepam16530
OzempicSemaglutide15632
AtenololAtenolol15331
IbuprofenIbuprofen14740
Sertraline HclSertraline Hcl14728
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14365
Potassium ChloridePotassium Chloride14027
Trazodone HclTrazodone Hcl13921
Hydroxyzine PamoateHydroxyzine Pamoate13335
Tramadol HclTramadol Hcl12625
Metoprolol SuccinateMetoprolol Succinate12527
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride12136
Zolpidem TartrateZolpidem Tartrate12121
Citalopram HbrCitalopram Hydrobromide11918
JanuviaSitagliptin Phosphate11614
Quetiapine FumarateQuetiapine Fumarate11615
Montelukast SodiumMontelukast Sodium11526
Duloxetine HclDuloxetine Hcl11312
Escitalopram OxalateEscitalopram Oxalate10717
Ciprofloxacin HclCiprofloxacin Hcl10686
GlimepirideGlimepiride10419
Paroxetine HclParoxetine Hcl10421
Clindamycin HclClindamycin Hcl10074
LevofloxacinLevofloxacin10070
Donepezil HclDonepezil Hcl9819
Amitriptyline HclAmitriptyline Hcl9719
Isosorbide Mononitrate ErIsosorbide Mononitrate9319
Ventolin HfaAlbuterol Sulfate8830
Diltiazem HclDiltiazem Hcl8421
Fluoxetine HclFluoxetine Hcl8213
Meclizine HclMeclizine Hcl8224
Clonidine HclClonidine Hcl8123
CelecoxibCelecoxib8027
OlanzapineOlanzapine8011
CarvedilolCarvedilol7915
ClonazepamClonazepam7814
JardianceEmpagliflozin7813
Fluticasone PropionateFluticasone Propionate7724
Hydroxyzine HclHydroxyzine Hcl7718
Rosuvastatin CalciumRosuvastatin Calcium7714
BumetanideBumetanide7512
Doxazosin MesylateDoxazosin Mesylate7519
Ondansetron HclOndansetron Hcl7342
Buspirone HclBuspirone Hcl6913
FluconazoleFluconazole6935
DiazepamDiazepam6612
Lantus SolostarInsulin Glargine,hum.Rec.Anlog6620
AlprazolamAlprazolam63suppressed
EntrestoSacubitril/Valsartan62suppressed
NystatinNystatin6123
MethocarbamolMethocarbamol6041
Neomycin-Polymyxin-HcNeomycin/Polymyxin B/Hydrocort5850
Esomeprazole MagnesiumEsomeprazole Magnesium5611
PhenobarbitalPhenobarbital56suppressed
SucralfateSucralfate5412
MirtazapineMirtazapine5314
SpironolactoneSpironolactone5314
Dicyclomine HclDicyclomine Hcl5215
TradjentaLinagliptin51suppressed
NaproxenNaproxen5011
DexamethasoneDexamethasone4824
FamotidineFamotidine4811
LinzessLinaclotide47suppressed
Pravastatin SodiumPravastatin Sodium47suppressed
Humulin 70/30 KwikpenInsulin Nph Hum/Reg Insulin Hm4613
Promethazine HclPromethazine Hcl4615
Venlafaxine Hcl ErVenlafaxine Hcl46suppressed
Diclofenac SodiumDiclofenac Sodium45suppressed
Nifedipine ErNifedipine45suppressed
Novolin RInsulin Regular, Human45suppressed
Triamcinolone AcetonideTriamcinolone Acetonide4514
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic4517
Warfarin SodiumWarfarin Sodium4512
ColchicineColchicine4413
Pioglitazone HclPioglitazone Hcl43suppressed
SymbicortBudesonide/Formoterol Fumarate4112
CilostazolCilostazol40suppressed
LamotrigineLamotrigine40suppressed
Amiodarone HclAmiodarone Hcl3912
Doxepin HclDoxepin Hcl39suppressed
Metformin Hcl ErMetformin Hcl38suppressed
Terbinafine HclTerbinafine Hcl3811
Doxycycline HyclateDoxycycline Hyclate3711
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide36suppressed
Metoclopramide HclMetoclopramide Hcl36suppressed
Ranolazine ErRanolazine36suppressed
Testosterone CypionateTestosterone Cypionate36suppressed
Glipizide ErGlipizide34suppressed
Clobetasol PropionateClobetasol Propionate3322
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog3211
Benazepril HclBenazepril Hcl32suppressed
Divalproex SodiumDivalproex Sodium32suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid32suppressed
XareltoRivaroxaban32suppressed
AripiprazoleAripiprazole31suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl31suppressed
TopiramateTopiramate31suppressed
FarxigaDapagliflozin Propanediol30suppressed
Tizanidine HclTizanidine Hcl30suppressed
Humulin RInsulin Regular, Human2911
LevetiracetamLevetiracetam29suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide29suppressed
RisperidoneRisperidone29suppressed
SynthroidLevothyroxine Sodium29suppressed
Terazosin HclTerazosin Hcl29suppressed
Theophylline ErTheophylline Anhydrous29suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter29suppressed
ValacyclovirValacyclovir Hcl2916
Propranolol HclPropranolol Hcl28suppressed
Combivent RespimatIpratropium/Albuterol Sulfate27suppressed
GemfibrozilGemfibrozil27suppressed
Humulin 70-30Insulin Nph Hum/Reg Insulin Hm27suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic2714
Novolin 70-30 FlexpenInsulin Nph Hum/Reg Insulin Hm26suppressed
Enalapril MaleateEnalapril Maleate25suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril24suppressed
Benztropine MesylateBenztropine Mesylate24suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl24suppressed
EstradiolEstradiol24suppressed
HydrocortisoneHydrocortisone24suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp24suppressed
ValsartanValsartan24suppressed
Bupropion XlBupropion Hcl23suppressed
CarbamazepineCarbamazepine23suppressed
EzetimibeEzetimibe23suppressed
Memantine HclMemantine Hcl23suppressed
OtezlaApremilast22suppressed
PregabalinPregabalin22suppressed
Aspirin-Dipyridamole ErAspirin/Dipyridamole21suppressed
LantusInsulin Glargine,hum.Rec.Anlog21suppressed
LoperamideLoperamide Hcl21suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2119
Alendronate SodiumAlendronate Sodium20suppressed
FinasterideFinasteride20suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2016
OxcarbazepineOxcarbazepine20suppressed
ConstuloseLactulose1911
LansoprazoleLansoprazole19suppressed
NitroglycerinNitroglycerin1912
Fluticasone-SalmeterolFluticasone Propion/Salmeterol18suppressed
Insulin SyringeSyringe-Needle,insulin,0.5 Ml18suppressed
KetoconazoleKetoconazole18suppressed
Novolog Mix 70-30Insulin Aspart Prot/Insuln Asp18suppressed
Ondansetron OdtOndansetron18suppressed
LatanoprostLatanoprost17suppressed
Megestrol AcetateMegestrol Acetate17suppressed
Nortriptyline HclNortriptyline Hcl17suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended17suppressed
RestasisCyclosporine17suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc16suppressed
Bupropion Hcl SrBupropion Hcl16suppressed
HumalogInsulin Lispro16suppressed
Humalog Mix 75-25 KwikpenInsulin Lispro Protamin/Lispro16suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate16suppressed
MetronidazoleMetronidazole1615
Nano 2nd Gen Pen NeedlePen Needle, Diabetic16suppressed
Sumatriptan SuccinateSumatriptan Succinate16suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine1514
LactuloseLactulose1512
DigoxinDigoxin14suppressed
FluocinonideFluocinonide14suppressed
LacosamideLacosamide14suppressed
Midodrine HclMidodrine Hcl14suppressed
Oxybutynin Chloride ErOxybutynin Chloride14suppressed
Acetaminophen-CodeineAcetaminophen With Codeine13suppressed
AmantadineAmantadine Hcl13suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr13suppressed
Balsalazide DisodiumBalsalazide Disodium13suppressed
NabumetoneNabumetone13suppressed
Nystatin-TriamcinoloneNystatin/Triamcinolone Acet13suppressed
NystopNystatin13suppressed
OxazepamOxazepam13suppressed
PentoxifyllinePentoxifylline13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
RivastigmineRivastigmine13suppressed
Ropinirole HclRopinirole Hcl13suppressed
SotalolSotalol Hcl13suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
AdmelogInsulin Lispro12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1211
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide12suppressed
Cholestyramine LightCholestyramine12suppressed
Insulin SyringeSyringe And Needle,insulin,1ml12suppressed
NuedextaDextromethorphan Hbr/Quinidine12suppressed
BaclofenBaclofen11suppressed
Fluphenazine HclFluphenazine Hcl11suppressed
IndomethacinIndomethacin11suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate11suppressed
Mesalamine ErMesalamine11suppressed
Penicillin V PotassiumPenicillin V Potassium11suppressed
VraylarCariprazine 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 $188.13 · 10 records GlaxoSmithKline, LLC. CAPLYTA, Cologuard Collection Kit, DUPIXENT, GVOKE HYPOPEN, JOURNAVX, NUCALA, NURTEC ODT, ZAVZPRET 2
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