Healthcare provider profile · identity verified

Robert K Thomen, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · CHANUTE, KS · NPI 1578553137

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 Robert K Thomen, M.D. received $48.02 in general payments during 2025 across 3 reported records.

PFIZER INC. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

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 203 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 11 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

$48.02

3 reported records · 1 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
PFIZER INC. Unresolved — no canonical attribution shown $48.02100.0%32025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$48.023

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
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $48.02 3 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $48.02 3 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 203 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
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
203 29
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
11 11

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 Calcium680170
LisinoprilLisinopril609130
Amlodipine BesylateAmlodipine Besylate520127
Levothyroxine SodiumLevothyroxine Sodium49397
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen40567
FurosemideFurosemide38692
GabapentinGabapentin35971
Pantoprazole SodiumPantoprazole Sodium34058
Metoprolol SuccinateMetoprolol Succinate30972
Losartan PotassiumLosartan Potassium30378
OmeprazoleOmeprazole30171
SimvastatinSimvastatin29966
Potassium ChloridePotassium Chloride29654
AlprazolamAlprazolam28135
HydrochlorothiazideHydrochlorothiazide22553
Metoprolol TartrateMetoprolol Tartrate22345
Metformin HclMetformin Hcl21253
Tramadol HclTramadol Hcl21241
EliquisApixaban20329
Sertraline HclSertraline Hcl20141
Tamsulosin HclTamsulosin Hcl19546
Cyclobenzaprine HclCyclobenzaprine Hcl19424
Amitriptyline HclAmitriptyline Hcl18426
Oxycodone HclOxycodone Hcl18222
Zolpidem TartrateZolpidem Tartrate17330
Albuterol Sulfate HfaAlbuterol Sulfate16544
Alendronate SodiumAlendronate Sodium16038
MeloxicamMeloxicam14236
AllopurinolAllopurinol13832
Diclofenac SodiumDiclofenac Sodium13036
ClopidogrelClopidogrel Bisulfate12229
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12134
Montelukast SodiumMontelukast Sodium11820
PrednisonePrednisone11573
Fluticasone PropionateFluticasone Propionate11330
Warfarin SodiumWarfarin Sodium11316
Duloxetine HclDuloxetine Hcl11220
Rosuvastatin CalciumRosuvastatin Calcium10834
XareltoRivaroxaban10819
Metformin Hcl ErMetformin Hcl10323
Clonidine HclClonidine Hcl9817
LovastatinLovastatin9720
FarxigaDapagliflozin Propanediol9615
PregabalinPregabalin94suppressed
ClonazepamClonazepam8815
FamotidineFamotidine8617
Tizanidine HclTizanidine Hcl8627
AtenololAtenolol8516
Venlafaxine Hcl ErVenlafaxine Hcl8015
CarvedilolCarvedilol7817
Citalopram HbrCitalopram Hydrobromide7715
SucralfateSucralfate7515
Trazodone HclTrazodone Hcl7511
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen7314
Buspirone HclBuspirone Hcl7013
Donepezil HclDonepezil Hcl7015
FinasterideFinasteride6617
MyrbetriqMirabegron66suppressed
Oxybutynin ChlorideOxybutynin Chloride64suppressed
CelecoxibCelecoxib6313
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide6319
SynthroidLevothyroxine Sodium6312
Doxepin HclDoxepin Hcl60suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl5917
BumetanideBumetanide5816
MirtazapineMirtazapine58suppressed
IbuprofenIbuprofen5717
Esomeprazole MagnesiumEsomeprazole Magnesium5512
ShingrixVaricella-Zoster Ge/As01b/Pf5446
EstradiolEstradiol5314
BaclofenBaclofen52suppressed
LorazepamLorazepam51suppressed
Hydroxyzine HclHydroxyzine Hcl5013
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5017
GlimepirideGlimepiride4915
TopiramateTopiramate48suppressed
Hydralazine HclHydralazine Hcl4715
MethocarbamolMethocarbamol46suppressed
CephalexinCephalexin4535
Paroxetine HclParoxetine Hcl44suppressed
Divalproex SodiumDivalproex Sodium43suppressed
Quetiapine FumarateQuetiapine Fumarate43suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol41suppressed
Propranolol HclPropranolol Hcl41suppressed
JardianceEmpagliflozin40suppressed
Pravastatin SodiumPravastatin Sodium38suppressed
Ropinirole HclRopinirole Hcl38suppressed
Memantine HclMemantine Hcl36suppressed
EzetimibeEzetimibe3512
NaproxenNaproxen35suppressed
NystatinNystatin35suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim3529
Verapamil ErVerapamil Hcl35suppressed
Doxazosin MesylateDoxazosin Mesylate34suppressed
FenofibrateFenofibrate34suppressed
Hydromorphone HclHydromorphone Hcl34suppressed
Oxybutynin Chloride ErOxybutynin Chloride34suppressed
Solifenacin SuccinateSolifenacin Succinate34suppressed
Terazosin HclTerazosin Hcl34suppressed
Bupropion Hcl SrBupropion Hcl33suppressed
DigoxinDigoxin33suppressed
Enalapril MaleateEnalapril Maleate33suppressed
Doxycycline HyclateDoxycycline Hyclate3227
KetoconazoleKetoconazole32suppressed
FentanylFentanyl31suppressed
Ondansetron HclOndansetron Hcl3113
Varenicline TartrateVarenicline Tartrate30suppressed
CarbamazepineCarbamazepine29suppressed
FluconazoleFluconazole29suppressed
Quetiapine Fumarate ErQuetiapine Fumarate29suppressed
CefuroximeCefuroxime Axetil2825
OlanzapineOlanzapine28suppressed
Morphine Sulfate ErMorphine Sulfate27suppressed
OzempicSemaglutide27suppressed
Propranolol Hcl ErPropranolol Hcl27suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2718
Carbidopa-LevodopaCarbidopa/Levodopa26suppressed
Novolog FlexpenInsulin Aspart26suppressed
Tolterodine Tartrate ErTolterodine Tartrate26suppressed
AzithromycinAzithromycin2523
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate25suppressed
Escitalopram OxalateEscitalopram Oxalate25suppressed
Ventolin HfaAlbuterol Sulfate24suppressed
DiazepamDiazepam23suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst23suppressed
Ziprasidone HclZiprasidone Hcl23suppressed
Ciprofloxacin HclCiprofloxacin Hcl2219
Fluoxetine HclFluoxetine Hcl22suppressed
Sumatriptan SuccinateSumatriptan Succinate22suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol21suppressed
Ondansetron OdtOndansetron21suppressed
SpironolactoneSpironolactone21suppressed
Benazepril HclBenazepril Hcl20suppressed
JantovenWarfarin Sodium20suppressed
LevetiracetamLevetiracetam20suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1817
SotalolSotalol Hcl18suppressed
Tresiba Flextouch U-100Insulin Degludec18suppressed
NitrofurantoinNitrofurantoin Macrocrystal17suppressed
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl17suppressed
Promethazine HclPromethazine Hcl17suppressed
Combivent RespimatIpratropium/Albuterol Sulfate16suppressed
LactuloseLactulose16suppressed
KerendiaFinerenone15suppressed
SymbicortBudesonide/Formoterol Fumarate15suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide15suppressed
AmoxicillinAmoxicillin1414
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide14suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)14suppressed
RybelsusSemaglutide14suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
Tresiba Flextouch U-200Insulin Degludec14suppressed
TrulicityDulaglutide14suppressed
ValsartanValsartan14suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl13suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine13suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine13suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
Diltiazem 24hr ErDiltiazem Hcl13suppressed
FenofibrateFenofibrate Nanocrystallized13suppressed
LevofloxacinLevofloxacin13suppressed
RexultiBrexpiprazole13suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter13suppressed
ZubsolvBuprenorphine Hcl/Naloxone Hcl13suppressed
Azelastine HclAzelastine Hcl12suppressed
Dexlansoprazole DrDexlansoprazole12suppressed
IndomethacinIndomethacin12suppressed
Ipratropium BromideIpratropium Bromide12suppressed
MultaqDronedarone Hcl12suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters12suppressed
Prazosin HclPrazosin Hcl12suppressed
TemazepamTemazepam12suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc11suppressed
Bupropion XlBupropion Hcl11suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro11suppressed
PaxlovidNirmatrelvir/Ritonavir1111
Raloxifene HclRaloxifene Hcl11suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog11suppressed

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 $48.02 · 3 records PFIZER INC. ELIQUIS, NURTEC ODT 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