Healthcare provider profile · identity verified

Jack S. Bartoszek, D.O.

Allopathic & Osteopathic Physicians|Family Medicine|Geriatric Medicine · MISHAWAKA, IN · NPI 1093714818

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 Jack S. Bartoszek, D.O. received $634.44 in general payments during 2025 across 7 reported records.

Teva Pharmaceuticals USA, Inc. accounted for 61.5% 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: Rexulti.

Otsuka America Pharmaceutical, 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 REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Rexulti by this doctor in 2024.

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

Payment overview · 2025

General Payments

$634.44

7 reported records · 2 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
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $390.2461.5%52025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $244.2038.5%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$634.447

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
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $390.24 5 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $244.20 2 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
REXULTI
rexulti
2025 Rexulti 2024 21
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
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
160756 supporting records · 46288 recipient NPIs · example record 1227267708
Rexulti · 2024
Exact normalized brand match · 1 Part D row
21 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 Calcium23538
Sertraline HclSertraline Hcl16225
FurosemideFurosemide14521
Amlodipine BesylateAmlodipine Besylate12619
Levothyroxine SodiumLevothyroxine Sodium12620
CarvedilolCarvedilol10514
GabapentinGabapentin10416
Donepezil HclDonepezil Hcl9916
Potassium ChloridePotassium Chloride9615
EliquisApixaban8511
Tamsulosin HclTamsulosin Hcl7514
Losartan PotassiumLosartan Potassium60suppressed
Metformin HclMetformin Hcl59suppressed
Metoprolol TartrateMetoprolol Tartrate5714
Pantoprazole SodiumPantoprazole Sodium5714
FamotidineFamotidine5511
Trazodone HclTrazodone Hcl46suppressed
JardianceEmpagliflozin45suppressed
Memantine HclMemantine Hcl44suppressed
LantusInsulin Glargine,hum.Rec.Anlog4211
Metoprolol SuccinateMetoprolol Succinate41suppressed
OlanzapineOlanzapine41suppressed
TorsemideTorsemide39suppressed
LamotrigineLamotrigine38suppressed
LisinoprilLisinopril37suppressed
RisperidoneRisperidone36suppressed
ClopidogrelClopidogrel Bisulfate33suppressed
SpironolactoneSpironolactone33suppressed
FanaptIloperidone31suppressed
Bupropion XlBupropion Hcl29suppressed
EnuloseLactulose29suppressed
LorazepamLorazepam29suppressed
NystatinNystatin2811
FarxigaDapagliflozin Propanediol26suppressed
HumalogInsulin Lispro26suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen26suppressed
Ondansetron HclOndansetron Hcl26suppressed
BaclofenBaclofen25suppressed
Risedronate SodiumRisedronate Sodium25suppressed
AripiprazoleAripiprazole23suppressed
PrednisonePrednisone23suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr22suppressed
PerphenazinePerphenazine22suppressed
EzetimibeEzetimibe21suppressed
RexultiBrexpiprazole21suppressed
Carbidopa-LevodopaCarbidopa/Levodopa20suppressed
Divalproex SodiumDivalproex Sodium20suppressed
Rosuvastatin CalciumRosuvastatin Calcium20suppressed
Montelukast SodiumMontelukast Sodium19suppressed
Quetiapine FumarateQuetiapine Fumarate19suppressed
HaloperidolHaloperidol18suppressed
LevetiracetamLevetiracetam18suppressed
CimetidineCimetidine17suppressed
DapagliflozinDapagliflozin Propanediol17suppressed
Duloxetine HclDuloxetine Hcl17suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
Incruse ElliptaUmeclidinium Bromide17suppressed
LoperamideLoperamide Hcl17suppressed
OxcarbazepineOxcarbazepine17suppressed
CephalexinCephalexin1611
Galantamine HbrGalantamine Hbr16suppressed
GlipizideGlipizide16suppressed
Medroxyprogesterone AcetateMedroxyprogesterone Acetate16suppressed
OmeprazoleOmeprazole16suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog15suppressed
ValsartanValsartan15suppressed
Albuterol Sulfate HfaAlbuterol Sulfate1411
Amiodarone HclAmiodarone Hcl14suppressed
Ciprofloxacin HclCiprofloxacin Hcl14suppressed
FinasterideFinasteride14suppressed
MirtazapineMirtazapine14suppressed
OzempicSemaglutide14suppressed
PhenobarbitalPhenobarbital14suppressed
Benztropine MesylateBenztropine Mesylate13suppressed
ChlorthalidoneChlorthalidone13suppressed
Escitalopram OxalateEscitalopram Oxalate13suppressed
PregabalinPregabalin13suppressed
Spiriva RespimatTiotropium Bromide13suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
Metformin Hcl ErMetformin Hcl12suppressed
Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha12suppressed
NyamycNystatin12suppressed
Ondansetron OdtOndansetron12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
Bethanechol ChlorideBethanechol Chloride11suppressed
CefuroximeCefuroxime Axetil11suppressed
Fluticasone PropionateFluticasone Propionate11suppressed
MethocarbamolMethocarbamol11suppressed
SimvastatinSimvastatin11suppressed
Trihexyphenidyl HclTrihexyphenidyl 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 $634.44 · 7 records Teva Pharmaceuticals USA, Inc. AUSTEDO XR, REXULTI 1
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