Healthcare provider profile · identity verified

William A Schwer, M.D.

Family Practice · WORTH, IL · NPI 1811945389

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 Calcium282103
Levothyroxine SodiumLevothyroxine Sodium20964
Metformin HclMetformin Hcl18360
Amlodipine BesylateAmlodipine Besylate17962
OmeprazoleOmeprazole16150
LisinoprilLisinopril15552
Metoprolol SuccinateMetoprolol Succinate12845
AlprazolamAlprazolam12134
Losartan PotassiumLosartan Potassium10836
HydrochlorothiazideHydrochlorothiazide9830
Escitalopram OxalateEscitalopram Oxalate9128
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8829
Albuterol Sulfate HfaAlbuterol Sulfate8719
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8426
Pantoprazole SodiumPantoprazole Sodium7924
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid7627
CelecoxibCelecoxib7428
Metoprolol TartrateMetoprolol Tartrate6721
SimvastatinSimvastatin6623
Montelukast SodiumMontelukast Sodium5814
Fluticasone PropionateFluticasone Propionate5723
Pioglitazone HclPioglitazone Hcl5217
GlipizideGlipizide4916
GabapentinGabapentin4718
FurosemideFurosemide4416
Rosuvastatin CalciumRosuvastatin Calcium4214
Tamsulosin HclTamsulosin Hcl4017
Tramadol HclTramadol Hcl4012
OzempicSemaglutide37suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen35suppressed
AtenololAtenolol32suppressed
CarvedilolCarvedilol3212
Diclofenac SodiumDiclofenac Sodium31suppressed
Pravastatin SodiumPravastatin Sodium3111
TemazepamTemazepam3111
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3026
Nifedipine ErNifedipine30suppressed
SynthroidLevothyroxine Sodium30suppressed
ClonazepamClonazepam28suppressed
Duloxetine HclDuloxetine Hcl28suppressed
FamotidineFamotidine28suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2714
LorazepamLorazepam27suppressed
Potassium ChloridePotassium Chloride27suppressed
Breo ElliptaFluticasone/Vilanterol26suppressed
Alendronate SodiumAlendronate Sodium25suppressed
AllopurinolAllopurinol25suppressed
Warfarin SodiumWarfarin Sodium25suppressed
Enalapril MaleateEnalapril Maleate23suppressed
EliquisApixaban22suppressed
MeloxicamMeloxicam22suppressed
Metformin Hcl ErMetformin Hcl22suppressed
Glipizide ErGlipizide21suppressed
Meclizine HclMeclizine Hcl21suppressed
MirtazapineMirtazapine21suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog19suppressed
HydrocortisoneHydrocortisone17suppressed
ClopidogrelClopidogrel Bisulfate16suppressed
FinasterideFinasteride16suppressed
RamiprilRamipril15suppressed
Zolpidem TartrateZolpidem Tartrate15suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium14suppressed
Fluoxetine HclFluoxetine Hcl14suppressed
Sertraline HclSertraline Hcl14suppressed
DutasterideDutasteride13suppressed
PrednisonePrednisone13suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
EzetimibeEzetimibe12suppressed
LovastatinLovastatin12suppressed
Trazodone HclTrazodone Hcl12suppressed
GlimepirideGlimepiride11suppressed
IbuprofenIbuprofen11suppressed
JardianceEmpagliflozin11suppressed
NaproxenNaproxen11suppressed
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