Healthcare provider profile · identity verified

Mark Hroncich, MD

Internal Medicine · BERWYN, IL · NPI 1265465108

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 Calcium564176
Amlodipine BesylateAmlodipine Besylate28385
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen28340
LisinoprilLisinopril24268
Levothyroxine SodiumLevothyroxine Sodium22563
GabapentinGabapentin22465
FurosemideFurosemide21265
Tamsulosin HclTamsulosin Hcl20365
Losartan PotassiumLosartan Potassium19959
Metformin HclMetformin Hcl19858
Metoprolol SuccinateMetoprolol Succinate19563
AlprazolamAlprazolam18932
SimvastatinSimvastatin18150
Pantoprazole SodiumPantoprazole Sodium16249
Metformin Hcl ErMetformin Hcl14948
Rosuvastatin CalciumRosuvastatin Calcium14345
Tramadol HclTramadol Hcl13550
HydrochlorothiazideHydrochlorothiazide13238
EliquisApixaban12732
OmeprazoleOmeprazole12335
Albuterol Sulfate HfaAlbuterol Sulfate10938
Trazodone HclTrazodone Hcl9934
GlipizideGlipizide9728
MeloxicamMeloxicam9132
CarvedilolCarvedilol8521
Duloxetine HclDuloxetine Hcl8122
AzithromycinAzithromycin7752
Alendronate SodiumAlendronate Sodium7628
Glipizide ErGlipizide7617
Escitalopram OxalateEscitalopram Oxalate7121
PrednisonePrednisone7045
AllopurinolAllopurinol6823
FamotidineFamotidine6827
LorazepamLorazepam67suppressed
Pioglitazone HclPioglitazone Hcl6521
Montelukast SodiumMontelukast Sodium6413
FinasterideFinasteride5922
Cyclobenzaprine HclCyclobenzaprine Hcl5827
Fluticasone PropionateFluticasone Propionate5828
JanuviaSitagliptin Phosphate58suppressed
Metoprolol TartrateMetoprolol Tartrate5717
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5719
KetoconazoleKetoconazole5619
Pravastatin SodiumPravastatin Sodium5517
OzempicSemaglutide5414
Potassium ChloridePotassium Chloride5314
CelecoxibCelecoxib5013
EzetimibeEzetimibe4916
Vitamin D2Ergocalciferol (Vitamin D2)4914
NabumetoneNabumetone4815
Enalapril MaleateEnalapril Maleate4711
Esomeprazole MagnesiumEsomeprazole Magnesium46suppressed
Sertraline HclSertraline Hcl4614
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4312
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4034
ClonazepamClonazepam39suppressed
Ciprofloxacin HclCiprofloxacin Hcl3634
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3613
Meclizine HclMeclizine Hcl3516
Memantine HclMemantine Hcl34suppressed
Breo ElliptaFluticasone/Vilanterol33suppressed
SpironolactoneSpironolactone33suppressed
TrulicityDulaglutide33suppressed
ClopidogrelClopidogrel Bisulfate3213
Mometasone FuroateMometasone Furoate3222
PregabalinPregabalin3113
Ventolin HfaAlbuterol Sulfate31suppressed
Citalopram HbrCitalopram Hydrobromide30suppressed
Paroxetine HclParoxetine Hcl30suppressed
Fluoxetine HclFluoxetine Hcl29suppressed
NystatinNystatin29suppressed
Oxybutynin Chloride ErOxybutynin Chloride29suppressed
CephalexinCephalexin2724
Donepezil HclDonepezil Hcl27suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2724
Diclofenac SodiumDiclofenac Sodium2614
Lantus SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
NaproxenNaproxen26suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril24suppressed
Buspirone HclBuspirone Hcl2411
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog2311
DutasterideDutasteride23suppressed
Hydralazine HclHydralazine Hcl23suppressed
XareltoRivaroxaban23suppressed
Benazepril-HydrochlorothiazideBenazepril/Hydrochlorothiazide22suppressed
Spiriva HandihalerTiotropium Bromide22suppressed
Tizanidine HclTizanidine Hcl2214
TorsemideTorsemide22suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic22suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2111
Fluticasone-SalmeterolFluticasone Propion/Salmeterol21suppressed
Spiriva RespimatTiotropium Bromide21suppressed
SynthroidLevothyroxine Sodium21suppressed
Wixela InhubFluticasone Propion/Salmeterol21suppressed
Benazepril HclBenazepril Hcl20suppressed
IbuprofenIbuprofen20suppressed
LovastatinLovastatin20suppressed
ValsartanValsartan20suppressed
LevetiracetamLevetiracetam19suppressed
ValacyclovirValacyclovir Hcl19suppressed
Venlafaxine Hcl ErVenlafaxine Hcl19suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads18suppressed
HydrocortisoneHydrocortisone18suppressed
Metoclopramide HclMetoclopramide Hcl18suppressed
Incruse ElliptaUmeclidinium Bromide17suppressed
Nifedipine ErNifedipine17suppressed
AtenololAtenolol16suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl16suppressed
Doxycycline HyclateDoxycycline Hyclate1611
EntrestoSacubitril/Valsartan16suppressed
JardianceEmpagliflozin16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
SymbicortBudesonide/Formoterol Fumarate16suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate15suppressed
FluconazoleFluconazole1512
MupirocinMupirocin15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Tolterodine Tartrate ErTolterodine Tartrate15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide15suppressed
BreynaBudesonide/Formoterol Fumarate14suppressed
BumetanideBumetanide14suppressed
Bupropion XlBupropion Hcl14suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine14suppressed
FenofibrateFenofibrate,micronized14suppressed
RisperidoneRisperidone14suppressed
Solifenacin SuccinateSolifenacin Succinate14suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine13suppressed
FenofibrateFenofibrate Nanocrystallized13suppressed
GlimepirideGlimepiride13suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate13suppressed
MirtazapineMirtazapine13suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl13suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
Tresiba Flextouch U-100Insulin Degludec13suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide13suppressed
AripiprazoleAripiprazole12suppressed
FluocinonideFluocinonide12suppressed
HumalogInsulin Lispro12suppressed
Ipratropium BromideIpratropium Bromide12suppressed
PaxlovidNirmatrelvir/Ritonavir1211
Restasis MultidoseCyclosporine12suppressed
FenofibrateFenofibrate11suppressed
LidocaineLidocaine11suppressed
Neomycin-Polymyxin-HcNeomycin/Polymyxin B/Hydrocort11suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic11suppressed
Verapamil HclVerapamil 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