Healthcare provider profile · identity verified

Nirav P Chudgar, MD

Internal Medicine · CALUMET CITY, IL · NPI 1780763805

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 Calcium630195
Amlodipine BesylateAmlodipine Besylate540166
Losartan PotassiumLosartan Potassium32997
Metformin HclMetformin Hcl30792
Metoprolol SuccinateMetoprolol Succinate27181
FurosemideFurosemide22381
HydrochlorothiazideHydrochlorothiazide21572
GabapentinGabapentin20979
Levothyroxine SodiumLevothyroxine Sodium20958
Pantoprazole SodiumPantoprazole Sodium20685
Tamsulosin HclTamsulosin Hcl17750
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16431
LisinoprilLisinopril16047
SimvastatinSimvastatin15442
Albuterol Sulfate HfaAlbuterol Sulfate14257
Tizanidine HclTizanidine Hcl14051
Metoprolol TartrateMetoprolol Tartrate13838
Potassium ChloridePotassium Chloride12946
Rosuvastatin CalciumRosuvastatin Calcium11438
Tramadol HclTramadol Hcl11429
Warfarin SodiumWarfarin Sodium11311
OzempicSemaglutide10923
GlimepirideGlimepiride10530
EliquisApixaban10334
FinasterideFinasteride10231
IbuprofenIbuprofen10129
OmeprazoleOmeprazole9532
Fluticasone PropionateFluticasone Propionate9336
Hydralazine HclHydralazine Hcl8327
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8123
Lantus SolostarInsulin Glargine,hum.Rec.Anlog8020
Montelukast SodiumMontelukast Sodium8023
PrednisonePrednisone8026
CarvedilolCarvedilol7925
AlprazolamAlprazolam7321
Triamcinolone AcetonideTriamcinolone Acetonide7238
Trazodone HclTrazodone Hcl7123
AzithromycinAzithromycin6951
Ciprofloxacin HclCiprofloxacin Hcl6752
Nifedipine ErNifedipine6620
Duloxetine HclDuloxetine Hcl6521
MeloxicamMeloxicam6522
AllopurinolAllopurinol6222
ClopidogrelClopidogrel Bisulfate5618
Olmesartan MedoxomilOlmesartan Medoxomil5615
LinzessLinaclotide5520
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5415
Diclofenac SodiumDiclofenac Sodium5226
Escitalopram OxalateEscitalopram Oxalate5119
Meclizine HclMeclizine Hcl5119
CephalexinCephalexin5039
JardianceEmpagliflozin4916
Alendronate SodiumAlendronate Sodium4815
FamotidineFamotidine4714
MounjaroTirzepatide47suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4612
CelecoxibCelecoxib4511
Clonidine HclClonidine Hcl4412
JanuviaSitagliptin Phosphate4312
Nano 2nd Gen Pen NeedlePen Needle, Diabetic4216
Pravastatin SodiumPravastatin Sodium4215
Venlafaxine Hcl ErVenlafaxine Hcl40suppressed
Metformin Hcl ErMetformin Hcl3913
PregabalinPregabalin3915
Vitamin D2Ergocalciferol (Vitamin D2)3912
Acetaminophen-CodeineAcetaminophen With Codeine3820
Fluticasone-SalmeterolFluticasone Propion/Salmeterol38suppressed
Buspirone HclBuspirone Hcl37suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl37suppressed
Oxybutynin Chloride ErOxybutynin Chloride3715
ClonazepamClonazepam36suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog35suppressed
GlipizideGlipizide3413
Glipizide ErGlipizide33suppressed
NystatinNystatin3217
ValacyclovirValacyclovir Hcl3215
Benazepril HclBenazepril Hcl31suppressed
FarxigaDapagliflozin Propanediol30suppressed
NaproxenNaproxen3012
Ondansetron OdtOndansetron3017
EntrestoSacubitril/Valsartan29suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate29suppressed
ValsartanValsartan29suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl28suppressed
EzetimibeEzetimibe27suppressed
Hydroxyzine HclHydroxyzine Hcl26suppressed
NitroglycerinNitroglycerin26suppressed
Humalog Kwikpen U-100Insulin Lispro25suppressed
LorazepamLorazepam25suppressed
Sildenafil CitrateSildenafil Citrate25suppressed
Ventolin HfaAlbuterol Sulfate2512
AtenololAtenolol24suppressed
Donepezil HclDonepezil Hcl24suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2320
Levemir FlexpenInsulin Detemir23suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide23suppressed
Propranolol HclPropranolol Hcl23suppressed
Sertraline HclSertraline Hcl23suppressed
Bupropion XlBupropion Hcl22suppressed
RybelsusSemaglutide22suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium21suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril20suppressed
Novolog FlexpenInsulin Aspart20suppressed
SpironolactoneSpironolactone20suppressed
TrulicityDulaglutide20suppressed
LidocaineLidocaine19suppressed
LovastatinLovastatin19suppressed
FluconazoleFluconazole1813
HumalogInsulin Lispro18suppressed
TacrolimusTacrolimus18suppressed
BaclofenBaclofen16suppressed
Breo ElliptaFluticasone/Vilanterol16suppressed
MirtazapineMirtazapine16suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1613
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate15suppressed
DutasterideDutasteride15suppressed
Emgality PenGalcanezumab-Gnlm15suppressed
Repatha SureclickEvolocumab15suppressed
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid15suppressed
Klor-Con M20Potassium Chloride14suppressed
MethylprednisoloneMethylprednisolone1412
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/714suppressed
SymbicortBudesonide/Formoterol Fumarate14suppressed
Alcohol PadsAlcohol Antiseptic Pads13suppressed
Amiodarone HclAmiodarone Hcl13suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads13suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog13suppressed
AmoxicillinAmoxicillin12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
LansoprazoleLansoprazole12suppressed
TemazepamTemazepam12suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
AcarboseAcarbose11suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone11suppressed
ColchicineColchicine11suppressed
Easy Comfort Pen NeedlesPen Needle, Diabetic11suppressed
Enalapril MaleateEnalapril Maleate11suppressed
Fluoxetine HclFluoxetine Hcl11suppressed
IndomethacinIndomethacin11suppressed
Janumet XrSitagliptin Phos/Metformin Hcl11suppressed
PaxlovidNirmatrelvir/Ritonavir1111
SynthroidLevothyroxine Sodium11suppressed
TorsemideTorsemide11suppressed

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