Healthcare provider profile · identity verified

Ben Jamin Tseng, MD

Internal Medicine · CHICAGO, IL · NPI 1821104373

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 Calcium360118
Amlodipine BesylateAmlodipine Besylate28088
Rosuvastatin CalciumRosuvastatin Calcium25579
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen23337
Metformin HclMetformin Hcl16150
Losartan PotassiumLosartan Potassium15452
LisinoprilLisinopril13947
Levothyroxine SodiumLevothyroxine Sodium12839
CarvedilolCarvedilol11235
HydrochlorothiazideHydrochlorothiazide10537
Pantoprazole SodiumPantoprazole Sodium10534
Albuterol Sulfate HfaAlbuterol Sulfate10237
Tamsulosin HclTamsulosin Hcl10131
FurosemideFurosemide9431
OzempicSemaglutide9123
OmeprazoleOmeprazole9038
GabapentinGabapentin8939
Tramadol HclTramadol Hcl8225
EliquisApixaban7524
Metformin Hcl ErMetformin Hcl7527
Fluticasone PropionateFluticasone Propionate7430
Metoprolol SuccinateMetoprolol Succinate7223
Nifedipine ErNifedipine7220
Potassium ChloridePotassium Chloride6622
JardianceEmpagliflozin6518
Duloxetine HclDuloxetine Hcl5618
Olmesartan MedoxomilOlmesartan Medoxomil5616
FinasterideFinasteride5512
AlprazolamAlprazolam52suppressed
FamotidineFamotidine5216
Montelukast SodiumMontelukast Sodium5114
AllopurinolAllopurinol4914
Incruse ElliptaUmeclidinium Bromide48suppressed
LorazepamLorazepam47suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl4214
Diclofenac SodiumDiclofenac Sodium3918
Escitalopram OxalateEscitalopram Oxalate3711
Triamcinolone AcetonideTriamcinolone Acetonide3720
Enalapril MaleateEnalapril Maleate36suppressed
TrulicityDulaglutide36suppressed
PregabalinPregabalin35suppressed
Trazodone HclTrazodone Hcl3511
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril3411
Hydralazine HclHydralazine Hcl3311
Pravastatin SodiumPravastatin Sodium33suppressed
Alendronate SodiumAlendronate Sodium32suppressed
XareltoRivaroxaban32suppressed
Breo ElliptaFluticasone/Vilanterol31suppressed
EzetimibeEzetimibe3112
TelmisartanTelmisartan31suppressed
SimvastatinSimvastatin2911
MirtazapineMirtazapine28suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog27suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter27suppressed
GlimepirideGlimepiride26suppressed
PrednisonePrednisone2618
Zolpidem TartrateZolpidem Tartrate26suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate25suppressed
Sertraline HclSertraline Hcl25suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
IbuprofenIbuprofen23suppressed
Tizanidine HclTizanidine Hcl23suppressed
Advair HfaFluticasone Propion/Salmeterol22suppressed
MeloxicamMeloxicam22suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic22suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr21suppressed
ClopidogrelClopidogrel Bisulfate21suppressed
IrbesartanIrbesartan21suppressed
JanuviaSitagliptin Phosphate21suppressed
Metoprolol TartrateMetoprolol Tartrate21suppressed
Acetaminophen-CodeineAcetaminophen With Codeine19suppressed
Donepezil HclDonepezil Hcl19suppressed
SymbicortBudesonide/Formoterol Fumarate19suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads18suppressed
EszopicloneEszopiclone18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
ClonazepamClonazepam17suppressed
LinzessLinaclotide17suppressed
HydrocortisoneHydrocortisone16suppressed
KetoconazoleKetoconazole16suppressed
ValsartanValsartan16suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
MetronidazoleMetronidazole15suppressed
SpironolactoneSpironolactone15suppressed
TradjentaLinagliptin15suppressed
LevetiracetamLevetiracetam14suppressed
Midodrine HclMidodrine Hcl14suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide14suppressed
Oxycodone HclOxycodone Hcl14suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen14suppressed
Tresiba Flextouch U-100Insulin Degludec14suppressed
Venlafaxine Hcl ErVenlafaxine Hcl14suppressed
Fluoxetine HclFluoxetine Hcl13suppressed
Novolog FlexpenInsulin Aspart13suppressed
RybelsusSemaglutide13suppressed
ValacyclovirValacyclovir Hcl13suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan12suppressed
ColchicineColchicine12suppressed
LovastatinLovastatin12suppressed
Varenicline TartrateVarenicline Tartrate12suppressed
Warfarin SodiumWarfarin Sodium12suppressed
Wixela InhubFluticasone Propion/Salmeterol12suppressed
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med11suppressed
BaclofenBaclofen11suppressed
CelecoxibCelecoxib11suppressed
CephalexinCephalexin11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed

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