Healthcare provider profile · identity verified

Aggeliki Zikos, M.D.

Internal Medicine · WAUKESHA, WI · NPI 1447471677

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 Calcium511137
Amlodipine BesylateAmlodipine Besylate26575
Losartan PotassiumLosartan Potassium24164
Rosuvastatin CalciumRosuvastatin Calcium23065
Levothyroxine SodiumLevothyroxine Sodium20552
LisinoprilLisinopril17347
Pantoprazole SodiumPantoprazole Sodium16245
GabapentinGabapentin15043
Metformin Hcl ErMetformin Hcl13534
OmeprazoleOmeprazole12629
HydrochlorothiazideHydrochlorothiazide12132
EzetimibeEzetimibe10930
Alendronate SodiumAlendronate Sodium9626
Sertraline HclSertraline Hcl9330
Metoprolol SuccinateMetoprolol Succinate8024
Duloxetine HclDuloxetine Hcl7814
Escitalopram OxalateEscitalopram Oxalate6915
SimvastatinSimvastatin6416
Metformin HclMetformin Hcl5918
JardianceEmpagliflozin5812
Albuterol Sulfate HfaAlbuterol Sulfate5723
EliquisApixaban5114
Tamsulosin HclTamsulosin Hcl5016
Venlafaxine Hcl ErVenlafaxine Hcl48suppressed
OzempicSemaglutide4712
Pravastatin SodiumPravastatin Sodium4614
Montelukast SodiumMontelukast Sodium4511
SynthroidLevothyroxine Sodium45suppressed
Trazodone HclTrazodone Hcl4317
FamotidineFamotidine4112
AtenololAtenolol40suppressed
AllopurinolAllopurinol3911
FurosemideFurosemide3714
Warfarin SodiumWarfarin Sodium3712
Bupropion XlBupropion Hcl3611
SpironolactoneSpironolactone36suppressed
TrulicityDulaglutide36suppressed
Fluticasone PropionateFluticasone Propionate3413
Metoprolol TartrateMetoprolol Tartrate31suppressed
Potassium ChloridePotassium Chloride31suppressed
TopiramateTopiramate30suppressed
AlprazolamAlprazolam29suppressed
Memantine HclMemantine Hcl26suppressed
EstradiolEstradiol2411
Tizanidine HclTizanidine Hcl24suppressed
MyrbetriqMirabegron22suppressed
ValacyclovirValacyclovir Hcl22suppressed
GlimepirideGlimepiride21suppressed
PregabalinPregabalin21suppressed
CarvedilolCarvedilol20suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol20suppressed
Azelastine HclAzelastine Hcl19suppressed
FenofibrateFenofibrate Nanocrystallized19suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1714
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr17suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
ClopidogrelClopidogrel Bisulfate16suppressed
FinasterideFinasteride16suppressed
LidocaineLidocaine16suppressed
Meclizine HclMeclizine Hcl16suppressed
Benazepril HclBenazepril Hcl15suppressed
ClotrimazoleClotrimazole15suppressed
Ropinirole HclRopinirole Hcl15suppressed
IrbesartanIrbesartan14suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide14suppressed
Amiodarone HclAmiodarone Hcl13suppressed
Tramadol HclTramadol Hcl13suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid13suppressed
Enalapril MaleateEnalapril Maleate12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
RamiprilRamipril12suppressed
Tresiba Flextouch U-100Insulin Degludec12suppressed
Zolpidem Tartrate ErZolpidem Tartrate12suppressed
BaclofenBaclofen11suppressed
BumetanideBumetanide11suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl11suppressed
GlipizideGlipizide11suppressed
NaproxenNaproxen11suppressed
Ondansetron OdtOndansetron11suppressed
Zolpidem TartrateZolpidem Tartrate11suppressed

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