Healthcare provider profile · identity verified

Daniel R Johnson, DO

Family Practice · N FOND DU LAC, WI · NPI 1801038476

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 Calcium554149
Losartan PotassiumLosartan Potassium20360
Levothyroxine SodiumLevothyroxine Sodium19743
SimvastatinSimvastatin17147
OmeprazoleOmeprazole16246
Tamsulosin HclTamsulosin Hcl16140
Amlodipine BesylateAmlodipine Besylate15639
Pantoprazole SodiumPantoprazole Sodium15250
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15042
GabapentinGabapentin14248
PrednisonePrednisone13893
Metformin Hcl ErMetformin Hcl13542
FurosemideFurosemide13434
LisinoprilLisinopril12740
EliquisApixaban11226
Trazodone HclTrazodone Hcl10726
Fluticasone PropionateFluticasone Propionate10638
Metoprolol SuccinateMetoprolol Succinate10428
Albuterol Sulfate HfaAlbuterol Sulfate10339
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide9524
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen9428
Metformin HclMetformin Hcl9428
MeloxicamMeloxicam9329
AllopurinolAllopurinol9124
Tramadol HclTramadol Hcl8919
Montelukast SodiumMontelukast Sodium8521
Rosuvastatin CalciumRosuvastatin Calcium8025
FinasterideFinasteride7819
FamotidineFamotidine7219
Pravastatin SodiumPravastatin Sodium7219
Sertraline HclSertraline Hcl7019
OzempicSemaglutide6912
HydrochlorothiazideHydrochlorothiazide6618
Metoprolol TartrateMetoprolol Tartrate6622
GlimepirideGlimepiride6520
Zolpidem TartrateZolpidem Tartrate6016
AzithromycinAzithromycin5846
Pioglitazone HclPioglitazone Hcl5817
JanuviaSitagliptin Phosphate5614
MethylprednisoloneMethylprednisolone5647
AtenololAtenolol5114
Donepezil HclDonepezil Hcl5013
Tizanidine HclTizanidine Hcl4914
Warfarin SodiumWarfarin Sodium4916
CarvedilolCarvedilol4812
Oxybutynin Chloride ErOxybutynin Chloride48suppressed
LorazepamLorazepam4720
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide4413
Esomeprazole MagnesiumEsomeprazole Magnesium4415
ClopidogrelClopidogrel Bisulfate4218
Fluoxetine HclFluoxetine Hcl4214
Cyclobenzaprine HclCyclobenzaprine Hcl4014
Escitalopram OxalateEscitalopram Oxalate40suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone39suppressed
Duloxetine HclDuloxetine Hcl39suppressed
Bisoprolol FumarateBisoprolol Fumarate35suppressed
Potassium ChloridePotassium Chloride3311
Alendronate SodiumAlendronate Sodium32suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3029
EstradiolEstradiol30suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol30suppressed
Bupropion XlBupropion Hcl29suppressed
PregabalinPregabalin29suppressed
Glipizide-MetforminGlipizide/Metformin Hcl28suppressed
CelecoxibCelecoxib2713
SynthroidLevothyroxine Sodium27suppressed
DiazepamDiazepam26suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride26suppressed
Venlafaxine Hcl ErVenlafaxine Hcl26suppressed
LovastatinLovastatin25suppressed
Citalopram HbrCitalopram Hydrobromide24suppressed
Dexlansoprazole DrDexlansoprazole24suppressed
Doxazosin MesylateDoxazosin Mesylate24suppressed
Doxepin HclDoxepin Hcl24suppressed
Doxycycline HyclateDoxycycline Hyclate2321
Ondansetron HclOndansetron Hcl23suppressed
Enalapril MaleateEnalapril Maleate21suppressed
FenofibrateFenofibrate21suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen21suppressed
Ropinirole HclRopinirole Hcl21suppressed
XareltoRivaroxaban21suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip2011
EzetimibeEzetimibe20suppressed
Hydralazine HclHydralazine Hcl20suppressed
Meclizine HclMeclizine Hcl20suppressed
MounjaroTirzepatide20suppressed
SpironolactoneSpironolactone20suppressed
TradjentaLinagliptin20suppressed
Hydroxyzine HclHydroxyzine Hcl19suppressed
Nifedipine ErNifedipine19suppressed
SymbicortBudesonide/Formoterol Fumarate19suppressed
Clobetasol PropionateClobetasol Propionate18suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate18suppressed
Triamcinolone AcetonideTriamcinolone Acetonide18suppressed
CiclopiroxCiclopirox17suppressed
MupirocinMupirocin1716
Penicillin V PotassiumPenicillin V Potassium17suppressed
Advair HfaFluticasone Propion/Salmeterol16suppressed
BaclofenBaclofen16suppressed
Glipizide ErGlipizide16suppressed
LansoprazoleLansoprazole16suppressed
Ondansetron OdtOndansetron16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid16suppressed
Betamethasone DipropionateBetamethasone Dipropionate15suppressed
Betamethasone ValerateBetamethasone Valerate15suppressed
JardianceEmpagliflozin15suppressed
PaxlovidNirmatrelvir/Ritonavir1515
Pramipexole DihydrochloridePramipexole Di-Hcl15suppressed
AlprazolamAlprazolam14suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Varenicline TartrateVarenicline Tartrate14suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
Buspirone HclBuspirone Hcl13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1313
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine13suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Memantine HclMemantine Hcl13suppressed
Nebivolol HclNebivolol Hcl13suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide12suppressed
NystatinNystatin12suppressed
Oxycodone HclOxycodone Hcl12suppressed
Spiriva RespimatTiotropium Bromide12suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
IrbesartanIrbesartan11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
RizatriptanRizatriptan Benzoate11suppressed
TriazolamTriazolam11suppressed
ZolmitriptanZolmitriptan11suppressed

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