Healthcare provider profile · identity verified

Christopher J Adler, MD

Internal Medicine · MARSHFIELD, WI · NPI 1891217741

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 Calcium817255
LisinoprilLisinopril487151
Amlodipine BesylateAmlodipine Besylate441130
Metoprolol SuccinateMetoprolol Succinate342109
OmeprazoleOmeprazole335102
Losartan PotassiumLosartan Potassium29193
Levothyroxine SodiumLevothyroxine Sodium28284
Metformin HclMetformin Hcl26182
HydrochlorothiazideHydrochlorothiazide25886
Rosuvastatin CalciumRosuvastatin Calcium23271
Tamsulosin HclTamsulosin Hcl21266
Metoprolol TartrateMetoprolol Tartrate20073
Warfarin SodiumWarfarin Sodium19256
AllopurinolAllopurinol18960
SimvastatinSimvastatin17353
EliquisApixaban13739
Pantoprazole SodiumPantoprazole Sodium13644
FurosemideFurosemide12248
Sertraline HclSertraline Hcl12139
GabapentinGabapentin11937
LovastatinLovastatin10329
FinasterideFinasteride10232
Potassium ChloridePotassium Chloride9832
Pravastatin SodiumPravastatin Sodium9530
ClopidogrelClopidogrel Bisulfate9132
Enalapril MaleateEnalapril Maleate8826
Albuterol Sulfate HfaAlbuterol Sulfate8741
Alendronate SodiumAlendronate Sodium7825
Metformin Hcl ErMetformin Hcl6520
Isosorbide Mononitrate ErIsosorbide Mononitrate6420
OzempicSemaglutide6218
FamotidineFamotidine6022
JardianceEmpagliflozin5916
EzetimibeEzetimibe5818
GlimepirideGlimepiride5516
CarvedilolCarvedilol5119
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5113
Fluticasone-SalmeterolFluticasone Propion/Salmeterol4912
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf4747
NitroglycerinNitroglycerin4737
AlprazolamAlprazolam4413
Citalopram HbrCitalopram Hydrobromide4213
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4211
Tramadol HclTramadol Hcl4114
Diltiazem 24hr Er (Cd)Diltiazem Hcl4012
GlipizideGlipizide4012
Fluoxetine HclFluoxetine Hcl3811
Breo ElliptaFluticasone/Vilanterol37suppressed
ChlorthalidoneChlorthalidone3711
SpironolactoneSpironolactone3415
Fluticasone PropionateFluticasone Propionate3314
Amitriptyline HclAmitriptyline Hcl32suppressed
Glipizide ErGlipizide2811
Zolpidem TartrateZolpidem Tartrate28suppressed
XareltoRivaroxaban25suppressed
Doxazosin MesylateDoxazosin Mesylate24suppressed
Propranolol Hcl ErPropranolol Hcl24suppressed
Sumatriptan SuccinateSumatriptan Succinate24suppressed
AmoxicillinAmoxicillin2315
ClonazepamClonazepam23suppressed
Paroxetine HclParoxetine Hcl23suppressed
Escitalopram OxalateEscitalopram Oxalate22suppressed
Rabeprazole SodiumRabeprazole Sodium22suppressed
AtenololAtenolol21suppressed
Fosinopril SodiumFosinopril Sodium21suppressed
Ropinirole HclRopinirole Hcl21suppressed
AcarboseAcarbose20suppressed
Semglee (Yfgn) PenInsulin Glargine-Yfgn20suppressed
SynthroidLevothyroxine Sodium20suppressed
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
Duloxetine HclDuloxetine Hcl19suppressed
CelecoxibCelecoxib18suppressed
VascepaIcosapent Ethyl18suppressed
Diclofenac SodiumDiclofenac Sodium17suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen17suppressed
IrbesartanIrbesartan17suppressed
MeloxicamMeloxicam17suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic17suppressed
Nifedipine ErNifedipine17suppressed
Triamcinolone AcetonideTriamcinolone Acetonide17suppressed
Advair HfaFluticasone Propion/Salmeterol16suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog16suppressed
FenofibrateFenofibrate Nanocrystallized16suppressed
MirtazapineMirtazapine16suppressed
NystatinNystatin16suppressed
Semglee (Yfgn)Insulin Glargine-Yfgn16suppressed
Trazodone HclTrazodone Hcl16suppressed
BaclofenBaclofen15suppressed
Bupropion Hcl SrBupropion Hcl15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl15suppressed
FenofibrateFenofibrate,micronized15suppressed
Oxycodone HclOxycodone Hcl15suppressed
Combivent RespimatIpratropium/Albuterol Sulfate14suppressed
LevoxylLevothyroxine Sodium14suppressed
MounjaroTirzepatide14suppressed
Potassium Citrate ErPotassium Citrate14suppressed
Spiriva RespimatTiotropium Bromide14suppressed
DigoxinDigoxin13suppressed
PrednisonePrednisone13suppressed
TrulicityDulaglutide13suppressed
Benazepril HclBenazepril Hcl12suppressed
Fluticasone Propionate HfaFluticasone Propionate12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Hydralazine HclHydralazine Hcl11suppressed
Hydroxyzine HclHydroxyzine Hcl11suppressed
Insulin AspartInsulin Aspart11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Novolin 70-30 FlexpenInsulin Nph Hum/Reg Insulin Hm11suppressed
TrandolaprilTrandolapril11suppressed

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