Healthcare provider profile · identity verified

Maggie E Chacko, MD

Internal Medicine · ELMHURST, IL · NPI 1417993734

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 Calcium28594
Montelukast SodiumMontelukast Sodium23283
Levothyroxine SodiumLevothyroxine Sodium20451
Amlodipine BesylateAmlodipine Besylate19456
SimvastatinSimvastatin16146
LisinoprilLisinopril15044
Metformin HclMetformin Hcl14454
Metoprolol SuccinateMetoprolol Succinate12240
OmeprazoleOmeprazole11841
Rosuvastatin CalciumRosuvastatin Calcium11837
Pantoprazole SodiumPantoprazole Sodium10038
GlimepirideGlimepiride9328
ValsartanValsartan8729
Losartan PotassiumLosartan Potassium8631
Albuterol Sulfate HfaAlbuterol Sulfate8038
Potassium ChloridePotassium Chloride8028
GabapentinGabapentin7828
OzempicSemaglutide7413
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid6523
Escitalopram OxalateEscitalopram Oxalate6420
PregabalinPregabalin6421
Tizanidine HclTizanidine Hcl6338
Alendronate SodiumAlendronate Sodium6019
Hydralazine HclHydralazine Hcl6017
Metformin Hcl ErMetformin Hcl5116
ClopidogrelClopidogrel Bisulfate5014
HydrochlorothiazideHydrochlorothiazide4716
Warfarin SodiumWarfarin Sodium44suppressed
CarvedilolCarvedilol4314
FurosemideFurosemide4113
TrulicityDulaglutide41suppressed
FenofibrateFenofibrate,micronized3913
Fluticasone PropionateFluticasone Propionate3915
LovastatinLovastatin39suppressed
Tamsulosin HclTamsulosin Hcl3912
FamotidineFamotidine3819
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride3811
Citalopram HbrCitalopram Hydrobromide3612
Duloxetine HclDuloxetine Hcl36suppressed
Metoprolol TartrateMetoprolol Tartrate3612
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3512
AllopurinolAllopurinol33suppressed
Fluoxetine HclFluoxetine Hcl33suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol3213
EliquisApixaban30suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide29suppressed
Pravastatin SodiumPravastatin Sodium2912
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide2911
Glipizide ErGlipizide27suppressed
CelecoxibCelecoxib26suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2623
ValacyclovirValacyclovir Hcl25suppressed
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone24suppressed
MethylprednisoloneMethylprednisolone2419
TopiramateTopiramate24suppressed
MounjaroTirzepatide22suppressed
Ciprofloxacin HclCiprofloxacin Hcl2118
Diltiazem 24hr Er (Cd)Diltiazem Hcl21suppressed
SpironolactoneSpironolactone21suppressed
AtenololAtenolol19suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl1813
TorsemideTorsemide18suppressed
LorazepamLorazepam17suppressed
MeloxicamMeloxicam17suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic17suppressed
Wixela InhubFluticasone Propion/Salmeterol17suppressed
Acetaminophen-CodeineAcetaminophen With Codeine16suppressed
AzithromycinAzithromycin16suppressed
Bupropion XlBupropion Hcl16suppressed
Clonidine HclClonidine Hcl16suppressed
FenofibrateFenofibrate Nanocrystallized16suppressed
GlipizideGlipizide16suppressed
JardianceEmpagliflozin16suppressed
NystatinNystatin16suppressed
Sertraline HclSertraline Hcl16suppressed
Ventolin HfaAlbuterol Sulfate16suppressed
Zolpidem TartrateZolpidem Tartrate16suppressed
Labetalol HclLabetalol Hcl15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
SynthroidLevothyroxine Sodium15suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip14suppressed
DiazepamDiazepam14suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
FinasterideFinasteride14suppressed
Nortriptyline HclNortriptyline Hcl14suppressed
Paroxetine HclParoxetine Hcl14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
AmoxicillinAmoxicillin13suppressed
Breo ElliptaFluticasone/Vilanterol13suppressed
Candesartan CilexetilCandesartan Cilexetil13suppressed
Tramadol HclTramadol Hcl13suppressed
DigoxinDigoxin12suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads12suppressed
Spiriva HandihalerTiotropium Bromide12suppressed

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