Healthcare provider profile · identity verified

Benjamin Chao, D.O.

Family Practice · JANESVILLE, WI · NPI 1760833727

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 Calcium561169
OmeprazoleOmeprazole29388
LisinoprilLisinopril28890
Amlodipine BesylateAmlodipine Besylate22968
Levothyroxine SodiumLevothyroxine Sodium20959
HydrochlorothiazideHydrochlorothiazide16349
Metformin HclMetformin Hcl13638
Metoprolol TartrateMetoprolol Tartrate13440
Losartan PotassiumLosartan Potassium13040
Metoprolol SuccinateMetoprolol Succinate12638
Tamsulosin HclTamsulosin Hcl11939
GabapentinGabapentin11439
SimvastatinSimvastatin10834
Rosuvastatin CalciumRosuvastatin Calcium10432
Pantoprazole SodiumPantoprazole Sodium10326
Trazodone HclTrazodone Hcl9627
FurosemideFurosemide8536
Metformin Hcl ErMetformin Hcl8429
Albuterol Sulfate HfaAlbuterol Sulfate8036
JardianceEmpagliflozin7016
EliquisApixaban6618
GlipizideGlipizide6521
FinasterideFinasteride5514
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5420
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5412
Warfarin SodiumWarfarin Sodium5315
Enalapril MaleateEnalapril Maleate5212
Fluticasone PropionateFluticasone Propionate5223
Pravastatin SodiumPravastatin Sodium5011
AllopurinolAllopurinol4716
CarvedilolCarvedilol4614
Fluoxetine HclFluoxetine Hcl4615
Glipizide ErGlipizide4511
Bupropion XlBupropion Hcl4412
Sertraline HclSertraline Hcl4417
Citalopram HbrCitalopram Hydrobromide4213
Cyclobenzaprine HclCyclobenzaprine Hcl4211
Zolpidem TartrateZolpidem Tartrate41suppressed
Duloxetine HclDuloxetine Hcl3813
AtenololAtenolol3715
ClopidogrelClopidogrel Bisulfate3711
Escitalopram OxalateEscitalopram Oxalate35suppressed
FamotidineFamotidine3511
Tramadol HclTramadol Hcl3518
TrulicityDulaglutide34suppressed
Oxybutynin Chloride ErOxybutynin Chloride33suppressed
SpironolactoneSpironolactone32suppressed
Alendronate SodiumAlendronate Sodium30suppressed
Pioglitazone HclPioglitazone Hcl30suppressed
Sumatriptan SuccinateSumatriptan Succinate27suppressed
Benazepril HclBenazepril Hcl26suppressed
Oxybutynin ChlorideOxybutynin Chloride25suppressed
AlprazolamAlprazolam2412
Fludrocortisone AcetateFludrocortisone Acetate24suppressed
NaproxenNaproxen24suppressed
Potassium ChloridePotassium Chloride2313
Testosterone CypionateTestosterone Cypionate23suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid23suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)22suppressed
TemazepamTemazepam22suppressed
Ventolin HfaAlbuterol Sulfate2211
XareltoRivaroxaban22suppressed
Montelukast SodiumMontelukast Sodium21suppressed
ClonazepamClonazepam20suppressed
Doxazosin MesylateDoxazosin Mesylate20suppressed
Hydroxyzine HclHydroxyzine Hcl20suppressed
Ropinirole HclRopinirole Hcl20suppressed
Diclofenac SodiumDiclofenac Sodium19suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol19suppressed
KetoconazoleKetoconazole19suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide19suppressed
NystopNystatin18suppressed
Oxycodone HclOxycodone Hcl18suppressed
Paroxetine HclParoxetine Hcl18suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog17suppressed
Hydralazine HclHydralazine Hcl17suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl17suppressed
PrednisonePrednisone1711
Triamcinolone AcetonideTriamcinolone Acetonide17suppressed
HydrocortisoneHydrocortisone16suppressed
LovastatinLovastatin16suppressed
Advair HfaFluticasone Propion/Salmeterol15suppressed
Combivent RespimatIpratropium/Albuterol Sulfate15suppressed
MirtazapineMirtazapine15suppressed
Novolog FlexpenInsulin Aspart15suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp15suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen15suppressed
Tizanidine HclTizanidine Hcl15suppressed
Venlafaxine Hcl ErVenlafaxine Hcl15suppressed
Amitriptyline HclAmitriptyline Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1412
Diltiazem 24hr Er (Cd)Diltiazem Hcl14suppressed
Fluticasone Propionate HfaFluticasone Propionate14suppressed
IbuprofenIbuprofen14suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate14suppressed
Meclizine HclMeclizine Hcl14suppressed
MeloxicamMeloxicam14suppressed
Ondansetron HclOndansetron Hcl14suppressed
OzempicSemaglutide14suppressed
Diltiazem 24hr ErDiltiazem Hcl13suppressed
EzetimibeEzetimibe13suppressed
GlimepirideGlimepiride13suppressed
LorazepamLorazepam13suppressed
Morphine Sulfate ErMorphine Sulfate13suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
Doxycycline HyclateDoxycycline Hyclate12suppressed
Insulin Aspart FlexpenInsulin Aspart12suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
Verapamil ErVerapamil Hcl12suppressed
EszopicloneEszopiclone11suppressed
FenofibrateFenofibrate Nanocrystallized11suppressed
Humalog Kwikpen U-100Insulin Lispro11suppressed

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