Healthcare provider profile · identity verified

William Bartkoski, D.O.

Family Practice · SENECA, KS · NPI 1518946086

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium41398
Losartan PotassiumLosartan Potassium38694
Levothyroxine SodiumLevothyroxine Sodium33664
Pantoprazole SodiumPantoprazole Sodium33481
Amlodipine BesylateAmlodipine Besylate23151
Rosuvastatin CalciumRosuvastatin Calcium22551
FurosemideFurosemide21344
GabapentinGabapentin20236
LisinoprilLisinopril18951
HydrochlorothiazideHydrochlorothiazide17437
Metformin Hcl ErMetformin Hcl16839
Potassium ChloridePotassium Chloride15542
Sertraline HclSertraline Hcl15328
OmeprazoleOmeprazole15133
SimvastatinSimvastatin14030
Tamsulosin HclTamsulosin Hcl13739
Metoprolol SuccinateMetoprolol Succinate11429
Warfarin SodiumWarfarin Sodium9817
MeloxicamMeloxicam8020
LorazepamLorazepam7818
Metoprolol TartrateMetoprolol Tartrate7816
ClopidogrelClopidogrel Bisulfate7317
EliquisApixaban7315
Montelukast SodiumMontelukast Sodium7319
CarvedilolCarvedilol6818
Donepezil HclDonepezil Hcl6412
Tramadol HclTramadol Hcl64suppressed
PrednisonePrednisone6134
Citalopram HbrCitalopram Hydrobromide5912
LevetiracetamLevetiracetam59suppressed
PregabalinPregabalin5513
AllopurinolAllopurinol5415
Klor-Con M20Potassium Chloride5421
Fluoxetine HclFluoxetine Hcl5311
Metformin HclMetformin Hcl53suppressed
MirtazapineMirtazapine49suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen48suppressed
XareltoRivaroxaban47suppressed
CefdinirCefdinir4639
Ropinirole HclRopinirole Hcl44suppressed
Alendronate SodiumAlendronate Sodium43suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl4313
Fluticasone-SalmeterolFluticasone Propion/Salmeterol40suppressed
Duloxetine HclDuloxetine Hcl38suppressed
SpironolactoneSpironolactone3811
Doxycycline HyclateDoxycycline Hyclate3633
ClonazepamClonazepam35suppressed
CephalexinCephalexin3425
Carbidopa-LevodopaCarbidopa/Levodopa33suppressed
Escitalopram OxalateEscitalopram Oxalate33suppressed
AzithromycinAzithromycin3220
Trazodone HclTrazodone Hcl32suppressed
Amiodarone HclAmiodarone Hcl31suppressed
TorsemideTorsemide31suppressed
GlimepirideGlimepiride30suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3012
Albuterol Sulfate HfaAlbuterol Sulfate29suppressed
Quetiapine FumarateQuetiapine Fumarate29suppressed
AlprazolamAlprazolam28suppressed
Combivent RespimatIpratropium/Albuterol Sulfate28suppressed
FinasterideFinasteride28suppressed
Paroxetine HclParoxetine Hcl28suppressed
SynthroidLevothyroxine Sodium28suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl27suppressed
FentanylFentanyl27suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2719
Buspirone HclBuspirone Hcl26suppressed
Ciprofloxacin HclCiprofloxacin Hcl2623
Zolpidem TartrateZolpidem Tartrate26suppressed
Colestipol HclColestipol Hcl25suppressed
DigoxinDigoxin25suppressed
MetolazoneMetolazone25suppressed
FamotidineFamotidine24suppressed
Fluticasone PropionateFluticasone Propionate24suppressed
GlipizideGlipizide24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog23suppressed
Memantine HclMemantine Hcl23suppressed
OzempicSemaglutide23suppressed
Pioglitazone HclPioglitazone Hcl23suppressed
Benazepril HclBenazepril Hcl22suppressed
ChlorthalidoneChlorthalidone22suppressed
EzetimibeEzetimibe22suppressed
MounjaroTirzepatide22suppressed
Pravastatin SodiumPravastatin Sodium22suppressed
SucralfateSucralfate22suppressed
BaclofenBaclofen20suppressed
Clobetasol PropionateClobetasol Propionate2013
MethylprednisoloneMethylprednisolone1918
TopiramateTopiramate19suppressed
PrimidonePrimidone18suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter18suppressed
FiaspInsulin Aspart (Niacinamide)17suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic17suppressed
Venlafaxine Hcl ErVenlafaxine Hcl17suppressed
AtenololAtenolol16suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog16suppressed
LantusInsulin Glargine,hum.Rec.Anlog16suppressed
LidocaineLidocaine16suppressed
NitrofurantoinNitrofurantoin Macrocrystal16suppressed
Bupropion XlBupropion Hcl15suppressed
FluconazoleFluconazole15suppressed
Glipizide ErGlipizide15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
Novolog FlexpenInsulin Aspart15suppressed
AcyclovirAcyclovir14suppressed
Azelastine HclAzelastine Hcl14suppressed
Divalproex SodiumDivalproex Sodium14suppressed
HumalogInsulin Lispro14suppressed
Humalog Kwikpen U-100Insulin Lispro14suppressed
LevofloxacinLevofloxacin1411
MupirocinMupirocin1412
RisperidoneRisperidone14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
Arnuity ElliptaFluticasone Furoate13suppressed
ClonidineClonidine13suppressed
LatanoprostLatanoprost13suppressed
Levemir FlexpenInsulin Detemir13suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13suppressed
Midodrine HclMidodrine Hcl13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Propranolol HclPropranolol Hcl13suppressed
ValsartanValsartan13suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr12suppressed
BudesonideBudesonide12suppressed
Colesevelam HclColesevelam Hcl12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
LacosamideLacosamide12suppressed
PhenobarbitalPhenobarbital12suppressed
Spiriva HandihalerTiotropium Bromide12suppressed
Theophylline ErTheophylline Anhydrous12suppressed
Tolterodine Tartrate ErTolterodine Tartrate12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1111
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended11suppressed
TemazepamTemazepam11suppressed
Terazosin HclTerazosin 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
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