Healthcare provider profile · identity verified

Michael R Brooks, MD

Nephrology · SHEBOYGAN, WI · NPI 1942358403

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
Amlodipine BesylateAmlodipine Besylate24687
Losartan PotassiumLosartan Potassium22376
FurosemideFurosemide17963
LisinoprilLisinopril17757
Atorvastatin CalciumAtorvastatin Calcium15773
HydrochlorothiazideHydrochlorothiazide12145
Pantoprazole SodiumPantoprazole Sodium11939
CalcitriolCalcitriol10731
Metoprolol SuccinateMetoprolol Succinate10638
AllopurinolAllopurinol10230
Levothyroxine SodiumLevothyroxine Sodium10139
SimvastatinSimvastatin9829
OmeprazoleOmeprazole9436
PrednisonePrednisone8033
ProsolParenteral Amino Acid 20% No.171suppressed
Metoprolol TartrateMetoprolol Tartrate6922
Metformin Hcl ErMetformin Hcl6727
GabapentinGabapentin5822
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5715
Zolpidem TartrateZolpidem Tartrate5713
AlprazolamAlprazolam5617
Metformin HclMetformin Hcl5321
SpironolactoneSpironolactone5316
Doxazosin MesylateDoxazosin Mesylate5117
Albuterol Sulfate HfaAlbuterol Sulfate4814
ClopidogrelClopidogrel Bisulfate4518
EliquisApixaban4512
Potassium ChloridePotassium Chloride4515
Tamsulosin HclTamsulosin Hcl4318
FarxigaDapagliflozin Propanediol41suppressed
Rosuvastatin CalciumRosuvastatin Calcium4112
PregabalinPregabalin38suppressed
CarvedilolCarvedilol3214
Hydralazine HclHydralazine Hcl32suppressed
Escitalopram OxalateEscitalopram Oxalate31suppressed
Fluoxetine HclFluoxetine Hcl31suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen30suppressed
EzetimibeEzetimibe28suppressed
Montelukast SodiumMontelukast Sodium28suppressed
Tramadol HclTramadol Hcl28suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl26suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2523
Duloxetine HclDuloxetine Hcl25suppressed
GemfibrozilGemfibrozil25suppressed
Pravastatin SodiumPravastatin Sodium2512
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters22suppressed
JanuviaSitagliptin Phosphate21suppressed
JardianceEmpagliflozin21suppressed
Mycophenolate MofetilMycophenolate Mofetil20suppressed
Oxycodone HclOxycodone Hcl20suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim20suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine19suppressed
FinasterideFinasteride19suppressed
LoperamideLoperamide Hcl19suppressed
MeloxicamMeloxicam19suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen19suppressed
FenofibrateFenofibrate18suppressed
Bupropion Hcl SrBupropion Hcl17suppressed
Novolog FlexpenInsulin Aspart17suppressed
AtenololAtenolol16suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine15suppressed
Midodrine HclMidodrine Hcl15suppressed
Nifedipine ErNifedipine15suppressed
Trazodone HclTrazodone Hcl15suppressed
Tresiba Flextouch U-100Insulin Degludec15suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid15suppressed
Doxycycline MonohydrateDoxycycline Monohydrate14suppressed
Paroxetine HclParoxetine Hcl14suppressed
Potassium Citrate ErPotassium Citrate14suppressed
Sertraline HclSertraline Hcl14suppressed
SymbicortBudesonide/Formoterol Fumarate14suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic14suppressed
GlimepirideGlimepiride13suppressed
Hydrocodone-IbuprofenHydrocodone/Ibuprofen13suppressed
Praluent PenAlirocumab13suppressed
Sevelamer CarbonateSevelamer Carbonate13suppressed
BumetanideBumetanide12suppressed
CreonLipase/Protease/Amylase12suppressed
Desmopressin AcetateDesmopressin Acetate12suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
VascepaIcosapent Ethyl12suppressed
Ropinirole HclRopinirole 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