Healthcare provider profile · identity verified

Ken Noguchi, MD, PHD

Family Practice · MADISON, WI · NPI 1871156737

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 Calcium17834
Levothyroxine SodiumLevothyroxine Sodium13820
LisinoprilLisinopril12023
Amlodipine BesylateAmlodipine Besylate9725
OmeprazoleOmeprazole8820
FurosemideFurosemide8314
Metformin HclMetformin Hcl7614
Losartan PotassiumLosartan Potassium6117
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen60suppressed
Rosuvastatin CalciumRosuvastatin Calcium5915
GabapentinGabapentin5114
CarvedilolCarvedilol5013
Citalopram HbrCitalopram Hydrobromide47suppressed
EliquisApixaban46suppressed
Metoprolol SuccinateMetoprolol Succinate46suppressed
Pantoprazole SodiumPantoprazole Sodium44suppressed
Buprenorphine HclBuprenorphine Hcl39suppressed
Potassium ChloridePotassium Chloride39suppressed
JardianceEmpagliflozin38suppressed
BumetanideBumetanide34suppressed
Bupropion XlBupropion Hcl33suppressed
Clonidine HclClonidine Hcl32suppressed
Duloxetine HclDuloxetine Hcl32suppressed
HydrochlorothiazideHydrochlorothiazide3211
Metformin Hcl ErMetformin Hcl32suppressed
MeloxicamMeloxicam30suppressed
Tamsulosin HclTamsulosin Hcl29suppressed
Sertraline HclSertraline Hcl27suppressed
Fluticasone PropionateFluticasone Propionate26suppressed
RexultiBrexpiprazole26suppressed
Glipizide ErGlipizide25suppressed
SpironolactoneSpironolactone24suppressed
ButransBuprenorphine23suppressed
ClopidogrelClopidogrel Bisulfate23suppressed
Quetiapine FumarateQuetiapine Fumarate23suppressed
MirtazapineMirtazapine22suppressed
SimvastatinSimvastatin22suppressed
BuprenorphineBuprenorphine21suppressed
TrulicityDulaglutide21suppressed
Amitriptyline HclAmitriptyline Hcl19suppressed
ChlorthalidoneChlorthalidone19suppressed
Midodrine HclMidodrine Hcl19suppressed
Oxybutynin ChlorideOxybutynin Chloride19suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen19suppressed
OzempicSemaglutide19suppressed
Diclofenac SodiumDiclofenac Sodium18suppressed
PregabalinPregabalin18suppressed
Montelukast SodiumMontelukast Sodium17suppressed
OlanzapineOlanzapine17suppressed
PrednisonePrednisone1713
AlprazolamAlprazolam16suppressed
Carbidopa-LevodopaCarbidopa/Levodopa16suppressed
CephalexinCephalexin1615
Donepezil HclDonepezil Hcl16suppressed
Minocycline HclMinocycline Hcl16suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1513
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate15suppressed
MyrbetriqMirabegron15suppressed
CelecoxibCelecoxib14suppressed
LactuloseLactulose14suppressed
LorazepamLorazepam14suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr13suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
EzetimibeEzetimibe13suppressed
Fludrocortisone AcetateFludrocortisone Acetate13suppressed
Metoprolol TartrateMetoprolol Tartrate13suppressed
SymbicortBudesonide/Formoterol Fumarate13suppressed
Trazodone HclTrazodone Hcl13suppressed
Benztropine MesylateBenztropine Mesylate12suppressed
CalcitriolCalcitriol12suppressed
Carbamazepine ErCarbamazepine12suppressed
Clindamycin HclClindamycin Hcl12suppressed
EstradiolEstradiol12suppressed
HydrocortisoneHydrocortisone12suppressed
JanuviaSitagliptin Phosphate12suppressed
LevetiracetamLevetiracetam12suppressed
Morphine SulfateMorphine Sulfate12suppressed
PhenobarbitalPhenobarbital12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
RamiprilRamipril12suppressed
Tresiba Flextouch U-100Insulin Degludec12suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate11suppressed
Propranolol HclPropranolol Hcl11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed
Triamcinolone AcetonideTriamcinolone Acetonide11suppressed

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