Healthcare provider profile · identity verified

Peter D Cladis, M.D.

Family Practice · GENEVA, IL · NPI 1467452755

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 Calcium763244
Levothyroxine SodiumLevothyroxine Sodium658202
LisinoprilLisinopril316101
Metoprolol SuccinateMetoprolol Succinate27592
OmeprazoleOmeprazole19473
HydrochlorothiazideHydrochlorothiazide18660
Losartan PotassiumLosartan Potassium18158
AllopurinolAllopurinol17657
Tamsulosin HclTamsulosin Hcl15655
Zolpidem TartrateZolpidem Tartrate12436
Amlodipine BesylateAmlodipine Besylate12249
Rosuvastatin CalciumRosuvastatin Calcium12245
SynthroidLevothyroxine Sodium11735
SimvastatinSimvastatin10438
Montelukast SodiumMontelukast Sodium9532
Pantoprazole SodiumPantoprazole Sodium9337
FinasterideFinasteride9131
Sertraline HclSertraline Hcl8628
GabapentinGabapentin8026
Metformin HclMetformin Hcl8025
Trazodone HclTrazodone Hcl6817
AlprazolamAlprazolam6626
EstradiolEstradiol6426
Metformin Hcl ErMetformin Hcl6326
Citalopram HbrCitalopram Hydrobromide6221
Paroxetine HclParoxetine Hcl5617
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5318
Duloxetine HclDuloxetine Hcl5111
Pravastatin SodiumPravastatin Sodium5120
EzetimibeEzetimibe4815
Albuterol Sulfate HfaAlbuterol Sulfate4616
Escitalopram OxalateEscitalopram Oxalate4518
LorazepamLorazepam4516
LovastatinLovastatin4513
MeloxicamMeloxicam4514
JanuviaSitagliptin Phosphate4412
PrednisonePrednisone4430
Metoprolol TartrateMetoprolol Tartrate4317
OzempicSemaglutide41suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid4012
Fluticasone PropionateFluticasone Propionate3922
SpironolactoneSpironolactone3912
Fluoxetine HclFluoxetine Hcl38suppressed
CephalexinCephalexin3725
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3612
Oxybutynin Chloride ErOxybutynin Chloride3414
GlimepirideGlimepiride3312
Alendronate SodiumAlendronate Sodium31suppressed
Memantine HclMemantine Hcl31suppressed
AtenololAtenolol30suppressed
Venlafaxine Hcl ErVenlafaxine Hcl30suppressed
Vitamin D2Ergocalciferol (Vitamin D2)2911
AmoxicillinAmoxicillin2825
MethylprednisoloneMethylprednisolone2823
ClonazepamClonazepam27suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium27suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol27suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2513
Raloxifene HclRaloxifene Hcl25suppressed
XareltoRivaroxaban24suppressed
FurosemideFurosemide2311
Potassium ChloridePotassium Chloride23suppressed
Ropinirole HclRopinirole Hcl23suppressed
Azelastine HclAzelastine Hcl2213
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2219
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate21suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl21suppressed
JardianceEmpagliflozin21suppressed
Propranolol HclPropranolol Hcl21suppressed
Sumatriptan SuccinateSumatriptan Succinate21suppressed
CarvedilolCarvedilol19suppressed
Hydralazine HclHydralazine Hcl19suppressed
IrbesartanIrbesartan19suppressed
NitrofurantoinNitrofurantoin Macrocrystal19suppressed
AzithromycinAzithromycin1817
ClopidogrelClopidogrel Bisulfate18suppressed
Doxazosin MesylateDoxazosin Mesylate18suppressed
Olmesartan MedoxomilOlmesartan Medoxomil18suppressed
Bupropion XlBupropion Hcl17suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine17suppressed
Benazepril HclBenazepril Hcl16suppressed
Doxycycline HyclateDoxycycline Hyclate1615
Galantamine HbrGalantamine Hbr16suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen1614
LansoprazoleLansoprazole16suppressed
Ondansetron HclOndansetron Hcl16suppressed
Tizanidine HclTizanidine Hcl16suppressed
ChlorthalidoneChlorthalidone15suppressed
ValsartanValsartan15suppressed
Tramadol HclTramadol Hcl14suppressed
Glipizide ErGlipizide13suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
ValacyclovirValacyclovir Hcl13suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
EliquisApixaban12suppressed
FenofibrateFenofibrate Nanocrystallized12suppressed
IndapamideIndapamide11suppressed
JanumetSitagliptin Phos/Metformin 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