Healthcare provider profile · identity verified

David T Wechter, M.D.

Internal Medicine · CHICAGO, IL · NPI 1659486348

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 Calcium475134
Amlodipine BesylateAmlodipine Besylate447122
Metoprolol SuccinateMetoprolol Succinate25972
HydrochlorothiazideHydrochlorothiazide25170
Losartan PotassiumLosartan Potassium19352
Rosuvastatin CalciumRosuvastatin Calcium19359
Metformin HclMetformin Hcl15149
SpironolactoneSpironolactone14045
LisinoprilLisinopril13841
SimvastatinSimvastatin12134
AllopurinolAllopurinol11434
FurosemideFurosemide10938
Levothyroxine SodiumLevothyroxine Sodium10631
Potassium ChloridePotassium Chloride10530
Tamsulosin HclTamsulosin Hcl10432
GabapentinGabapentin10033
Albuterol Sulfate HfaAlbuterol Sulfate8827
EliquisApixaban8720
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8623
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid8525
Duloxetine HclDuloxetine Hcl8216
Nifedipine ErNifedipine8122
Lantus SolostarInsulin Glargine,hum.Rec.Anlog8019
OzempicSemaglutide7719
Pantoprazole SodiumPantoprazole Sodium7428
Tramadol HclTramadol Hcl7218
RybelsusSemaglutide6814
CarvedilolCarvedilol6622
Fluticasone PropionateFluticasone Propionate6624
JardianceEmpagliflozin6414
Metformin Hcl ErMetformin Hcl6418
OmeprazoleOmeprazole6122
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6011
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5716
PrednisonePrednisone5620
AlprazolamAlprazolam5512
LorazepamLorazepam5311
Montelukast SodiumMontelukast Sodium5214
Enalapril MaleateEnalapril Maleate5115
Metoprolol TartrateMetoprolol Tartrate5116
BaclofenBaclofen4615
Diltiazem 24hr Er (Cd)Diltiazem Hcl4513
FamotidineFamotidine45suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter4511
ClopidogrelClopidogrel Bisulfate4416
Warfarin SodiumWarfarin Sodium4112
IrbesartanIrbesartan4011
Nano 2nd Gen Pen NeedlePen Needle, Diabetic3811
Benazepril HclBenazepril Hcl3711
Triamcinolone AcetonideTriamcinolone Acetonide3722
Sertraline HclSertraline Hcl3612
XareltoRivaroxaban36suppressed
GlimepirideGlimepiride3513
GlipizideGlipizide3511
Zolpidem TartrateZolpidem Tartrate3513
ChlorthalidoneChlorthalidone34suppressed
Ipratropium BromideIpratropium Bromide33suppressed
Propranolol HclPropranolol Hcl32suppressed
Escitalopram OxalateEscitalopram Oxalate30suppressed
Hydralazine HclHydralazine Hcl3011
ClonazepamClonazepam29suppressed
Glipizide ErGlipizide29suppressed
AtenololAtenolol28suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol2711
Trazodone HclTrazodone Hcl26suppressed
Doxycycline MonohydrateDoxycycline Monohydrate25suppressed
FinasterideFinasteride25suppressed
ValsartanValsartan25suppressed
LidocaineLidocaine24suppressed
IbuprofenIbuprofen22suppressed
Pravastatin SodiumPravastatin Sodium21suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide21suppressed
Candesartan CilexetilCandesartan Cilexetil20suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril19suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl19suppressed
Doxycycline HyclateDoxycycline Hyclate19suppressed
EzetimibeEzetimibe19suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate19suppressed
LovastatinLovastatin19suppressed
Nortriptyline HclNortriptyline Hcl19suppressed
AzithromycinAzithromycin18suppressed
Ibandronate SodiumIbandronate Sodium18suppressed
MirtazapineMirtazapine18suppressed
TrulicityDulaglutide18suppressed
CelecoxibCelecoxib16suppressed
PaxlovidNirmatrelvir/Ritonavir1616
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog15suppressed
Candesartan-HydrochlorothiazidCandesartan/Hydrochlorothiazid15suppressed
LansoprazoleLansoprazole15suppressed
DiazepamDiazepam14suppressed
MethimazoleMethimazole14suppressed
MethotrexateMethotrexate Sodium14suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic14suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide13suppressed
Klor-Con M20Potassium Chloride13suppressed
LevetiracetamLevetiracetam13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil13suppressed
Verapamil ErVerapamil Hcl13suppressed
Bupropion HclBupropion Hcl12suppressed
Clonidine HclClonidine Hcl12suppressed
Diltiazem 24hr Er (Xr)Diltiazem Hcl12suppressed
Levalbuterol Tartrate HfaLevalbuterol Tartrate12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
Dicyclomine HclDicyclomine Hcl11suppressed
Donepezil HclDonepezil Hcl11suppressed
EntrestoSacubitril/Valsartan11suppressed
JanumetSitagliptin Phos/Metformin Hcl11suppressed
LatanoprostLatanoprost11suppressed
Meclizine HclMeclizine Hcl11suppressed
Memantine HclMemantine Hcl11suppressed
MounjaroTirzepatide11suppressed
PregabalinPregabalin11suppressed
Tolterodine TartrateTolterodine Tartrate11suppressed
Ventolin HfaAlbuterol Sulfate11suppressed

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