Healthcare provider profile · identity verified

Gregory G Nowak, MD

Cardiology · ROCKFORD, IL · NPI 1376516625

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 Calcium1960569
Metoprolol SuccinateMetoprolol Succinate1449440
Amlodipine BesylateAmlodipine Besylate1138337
EzetimibeEzetimibe1089310
LisinoprilLisinopril898266
EliquisApixaban880196
FurosemideFurosemide822229
SpironolactoneSpironolactone798243
Hydralazine HclHydralazine Hcl720217
Losartan PotassiumLosartan Potassium620185
CarvedilolCarvedilol534156
Rosuvastatin CalciumRosuvastatin Calcium496150
Warfarin SodiumWarfarin Sodium474137
Metoprolol TartrateMetoprolol Tartrate401121
ClopidogrelClopidogrel Bisulfate332103
Isosorbide Mononitrate ErIsosorbide Mononitrate25582
Repatha SureclickEvolocumab22550
XareltoRivaroxaban21851
Diltiazem 24hr Er (Cd)Diltiazem Hcl19758
AtenololAtenolol17648
MinoxidilMinoxidil17650
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide16145
ValsartanValsartan14743
EntrestoSacubitril/Valsartan14546
Potassium ChloridePotassium Chloride14544
DigoxinDigoxin13842
HydrochlorothiazideHydrochlorothiazide13243
JardianceEmpagliflozin12944
Nifedipine ErNifedipine11228
FarxigaDapagliflozin Propanediol10933
TorsemideTorsemide9933
Amiodarone HclAmiodarone Hcl9834
Flecainide AcetateFlecainide Acetate9530
SimvastatinSimvastatin8524
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8127
Praluent PenAlirocumab7821
ChlorthalidoneChlorthalidone6220
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide6116
Diltiazem HclDiltiazem Hcl5818
Ranolazine ErRanolazine5816
Terazosin HclTerazosin Hcl5820
BumetanideBumetanide5617
RamiprilRamipril5417
Pravastatin SodiumPravastatin Sodium4716
Nebivolol HclNebivolol Hcl4613
JantovenWarfarin Sodium4411
Klor-Con M20Potassium Chloride4314
Clonidine HclClonidine Hcl4114
Benazepril HclBenazepril Hcl40suppressed
FenofibrateFenofibrate Nanocrystallized4013
IrbesartanIrbesartan4011
Bisoprolol FumarateBisoprolol Fumarate3912
Labetalol HclLabetalol Hcl36suppressed
Isosorbide DinitrateIsosorbide Dinitrate3211
NitroglycerinNitroglycerin3126
Midodrine HclMidodrine Hcl28suppressed
SotalolSotalol Hcl28suppressed
BrilintaTicagrelor25suppressed
Enalapril MaleateEnalapril Maleate25suppressed
Fludrocortisone AcetateFludrocortisone Acetate25suppressed
AmoxicillinAmoxicillin2413
AmbrisentanAmbrisentan23suppressed
Repatha SyringeEvolocumab21suppressed
Dilt-XrDiltiazem Hcl20suppressed
FenofibrateFenofibrate18suppressed
MetolazoneMetolazone18suppressed
Propafenone HclPropafenone Hcl17suppressed
Diltiazem 24hr ErDiltiazem Hcl15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Cartia XtDiltiazem Hcl14suppressed
Enoxaparin SodiumEnoxaparin Sodium13suppressed
Klor-Con M10Potassium Chloride13suppressed
Propranolol HclPropranolol Hcl13suppressed
Pyridostigmine BromidePyridostigmine Bromide13suppressed
Sildenafil CitrateSildenafil Citrate13suppressed
EplerenoneEplerenone12suppressed
AllopurinolAllopurinol11suppressed
PradaxaDabigatran Etexilate Mesylate11suppressed
Verapamil ErVerapamil 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