Healthcare provider profile · identity verified

Antonis Antoniou, MD

Internal Medicine · FRESNO, CA · NPI 1861564601

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 Calcium27641
Amlodipine BesylateAmlodipine Besylate25039
Levothyroxine SodiumLevothyroxine Sodium21623
FamotidineFamotidine19226
GabapentinGabapentin18826
Metoprolol TartrateMetoprolol Tartrate14226
LisinoprilLisinopril12225
NystatinNystatin11132
FurosemideFurosemide9824
Hydralazine HclHydralazine Hcl9716
Sertraline HclSertraline Hcl9512
AllopurinolAllopurinol92suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn7411
AtenololAtenolol73suppressed
DigoxinDigoxin72suppressed
Losartan PotassiumLosartan Potassium6917
MirtazapineMirtazapine6918
Tamsulosin HclTamsulosin Hcl6413
Triamcinolone AcetonideTriamcinolone Acetonide6411
PrednisonePrednisone6329
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6215
PradaxaDabigatran Etexilate Mesylate5811
Dicyclomine HclDicyclomine Hcl54suppressed
Pantoprazole SodiumPantoprazole Sodium5217
PrimidonePrimidone52suppressed
Duloxetine HclDuloxetine Hcl51suppressed
Metoprolol SuccinateMetoprolol Succinate5115
ClopidogrelClopidogrel Bisulfate5014
Isosorbide Mononitrate ErIsosorbide Mononitrate4813
Montelukast SodiumMontelukast Sodium48suppressed
Humulin RInsulin Regular, Human4513
Doxycycline MonohydrateDoxycycline Monohydrate4438
Quetiapine FumarateQuetiapine Fumarate4416
Escitalopram OxalateEscitalopram Oxalate38suppressed
Potassium ChloridePotassium Chloride37suppressed
AlvescoCiclesonide36suppressed
Wixela InhubFluticasone Propion/Salmeterol36suppressed
Fluticasone PropionateFluticasone Propionate3513
LatanoprostLatanoprost35suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3420
Fluoxetine HclFluoxetine Hcl34suppressed
Trazodone HclTrazodone Hcl3412
Divalproex SodiumDivalproex Sodium3311
Ciprofloxacin HclCiprofloxacin Hcl3226
EliquisApixaban31suppressed
Metformin HclMetformin Hcl3113
Labetalol HclLabetalol Hcl30suppressed
Diclofenac SodiumDiclofenac Sodium28suppressed
Spiriva RespimatTiotropium Bromide28suppressed
Doxycycline HyclateDoxycycline Hyclate2720
Humulin N KwikpenInsulin Nph Human Isophane27suppressed
Amiodarone HclAmiodarone Hcl26suppressed
GlipizideGlipizide26suppressed
JardianceEmpagliflozin25suppressed
CarvedilolCarvedilol24suppressed
PregabalinPregabalin24suppressed
Tramadol HclTramadol Hcl24suppressed
EnuloseLactulose21suppressed
XareltoRivaroxaban21suppressed
FinasterideFinasteride20suppressed
HydrochlorothiazideHydrochlorothiazide20suppressed
Klor-Con 10Potassium Chloride20suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate19suppressed
LevofloxacinLevofloxacin1918
NitroglycerinNitroglycerin1912
Oxybutynin ChlorideOxybutynin Chloride19suppressed
Trospium ChlorideTrospium Chloride19suppressed
SimvastatinSimvastatin18suppressed
BumetanideBumetanide17suppressed
OlanzapineOlanzapine17suppressed
SantylCollagenase Clostridium Hist.17suppressed
SpironolactoneSpironolactone17suppressed
Valproic AcidValproic Acid (As Sodium Salt)17suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen16suppressed
Sevelamer CarbonateSevelamer Carbonate16suppressed
Midodrine HclMidodrine Hcl15suppressed
Buspirone HclBuspirone Hcl14suppressed
CephalexinCephalexin1411
Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat14suppressed
Timolol MaleateTimolol Maleate14suppressed
ColchicineColchicine13suppressed
Divalproex Sodium ErDivalproex Sodium13suppressed
Humalog Kwikpen U-100Insulin Lispro13suppressed
LactuloseLactulose13suppressed
OmeprazoleOmeprazole13suppressed
CelecoxibCelecoxib12suppressed
Glipizide ErGlipizide12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
MetronidazoleMetronidazole12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
Propranolol HclPropranolol Hcl12suppressed
Albuterol SulfateAlbuterol Sulfate11suppressed
AmoxicillinAmoxicillin11suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav11suppressed
Olanzapine OdtOlanzapine11suppressed
Terazosin HclTerazosin Hcl11suppressed

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