Healthcare provider profile · identity verified

Benjamin Winarko, M.D.

Internal Medicine · CERRITOS, CA · NPI 1811255185

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 Calcium489179
Amlodipine BesylateAmlodipine Besylate315132
LisinoprilLisinopril20286
Losartan PotassiumLosartan Potassium19577
Metformin HclMetformin Hcl19378
GlipizideGlipizide13958
Rosuvastatin CalciumRosuvastatin Calcium13954
SimvastatinSimvastatin12554
HydrochlorothiazideHydrochlorothiazide11647
Levothyroxine SodiumLevothyroxine Sodium11354
OmeprazoleOmeprazole11255
Tamsulosin HclTamsulosin Hcl8432
Bisoprolol FumarateBisoprolol Fumarate8227
Pravastatin SodiumPravastatin Sodium8226
Metoprolol TartrateMetoprolol Tartrate8134
AtenololAtenolol7126
FurosemideFurosemide6933
MeloxicamMeloxicam6535
Albuterol Sulfate HfaAlbuterol Sulfate6441
Alendronate SodiumAlendronate Sodium6424
GabapentinGabapentin5831
Hydralazine HclHydralazine Hcl5530
Potassium ChloridePotassium Chloride5332
Triamcinolone AcetonideTriamcinolone Acetonide5333
PradaxaDabigatran Etexilate Mesylate5121
Metformin Hcl ErMetformin Hcl5022
AllopurinolAllopurinol4919
IbuprofenIbuprofen4726
JardianceEmpagliflozin4721
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4318
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4221
FamotidineFamotidine4122
Pantoprazole SodiumPantoprazole Sodium4019
Trazodone HclTrazodone Hcl3317
CephalexinCephalexin3229
FinasterideFinasteride3112
Wixela InhubFluticasone Propion/Salmeterol31suppressed
AbrysvoRsv Vacc, Pref A And Pref B/Pf3030
LidocaineLidocaine2811
Azelastine HclAzelastine Hcl2714
AzithromycinAzithromycin2726
CarvedilolCarvedilol2714
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide2713
Terazosin HclTerazosin Hcl27suppressed
MupirocinMupirocin2611
NaproxenNaproxen2617
AlvescoCiclesonide2514
LovastatinLovastatin25suppressed
Montelukast SodiumMontelukast Sodium25suppressed
SpironolactoneSpironolactone23suppressed
ColchicineColchicine2212
Humulin NInsulin Nph Human Isophane22suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic2213
PrednisonePrednisone2222
Spiriva RespimatTiotropium Bromide22suppressed
Ondansetron OdtOndansetron21suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1919
HydrocortisoneHydrocortisone1913
Escitalopram OxalateEscitalopram Oxalate18suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate18suppressed
EliquisApixaban17suppressed
Fluticasone PropionateFluticasone Propionate17suppressed
Tramadol HclTramadol Hcl16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid16suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen15suppressed
CiclopiroxCiclopirox14suppressed
DigoxinDigoxin14suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn14suppressed
ClopidogrelClopidogrel Bisulfate13suppressed
LactuloseLactulose13suppressed
OzempicSemaglutide13suppressed
Veo Insulin SyringeSyrge-Ndl,ins 0.3 Ml Half Mark13suppressed
AcyclovirAcyclovir12suppressed
Calcitonin-SalmonCalcitonin,salmon,synthetic11suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1111
Humulin N KwikpenInsulin Nph Human Isophane11suppressed
Pioglitazone HclPioglitazone Hcl11suppressed
Veo Insulin SyringeSyringe And Needle,insulin,1ml11suppressed
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml11suppressed

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