Healthcare provider profile · identity verified

Ethan W Carlson, MD

Family Practice · BARABOO, WI · NPI 1265498588

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

Brand	Generic	Claims	Beneficiaries
Atorvastatin Calcium	Atorvastatin Calcium	628	174
Lisinopril	Lisinopril	295	81
Omeprazole	Omeprazole	282	80
Metoprolol Succinate	Metoprolol Succinate	199	63
Amlodipine Besylate	Amlodipine Besylate	195	50
Losartan Potassium	Losartan Potassium	185	55
Levothyroxine Sodium	Levothyroxine Sodium	147	38
Tamsulosin Hcl	Tamsulosin Hcl	145	41
Metoprolol Tartrate	Metoprolol Tartrate	113	29
Metformin Hcl	Metformin Hcl	107	30
Furosemide	Furosemide	101	28
Potassium Chloride	Potassium Chloride	95	25
Rosuvastatin Calcium	Rosuvastatin Calcium	92	29
Hydrochlorothiazide	Hydrochlorothiazide	91	26
Fluticasone Propionate	Fluticasone Propionate	88	39
Pantoprazole Sodium	Pantoprazole Sodium	86	25
Pioglitazone Hcl	Pioglitazone Hcl	83	19
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	79	15
Warfarin Sodium	Warfarin Sodium	74	19
Metformin Hcl Er	Metformin Hcl	72	20
Gabapentin	Gabapentin	70	21
Famotidine	Famotidine	69	22
Mirtazapine	Mirtazapine	69	15
Spironolactone	Spironolactone	67	20
Albuterol Sulfate Hfa	Albuterol Sulfate	66	29
Trazodone Hcl	Trazodone Hcl	63	15
Carvedilol	Carvedilol	61	15
Xarelto	Rivaroxaban	57	13
Clopidogrel	Clopidogrel Bisulfate	55	18
Jardiance	Empagliflozin	53	17
Glimepiride	Glimepiride	52	16
Eliquis	Apixaban	49	15
Atenolol	Atenolol	48	14
Allopurinol	Allopurinol	47	14
Sertraline Hcl	Sertraline Hcl	47	14
Farxiga	Dapagliflozin Propanediol	45	suppressed
Simvastatin	Simvastatin	43	13
Sumatriptan Succinate	Sumatriptan Succinate	40	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	39	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	39	suppressed
Ozempic	Semaglutide	37	suppressed
Tizanidine Hcl	Tizanidine Hcl	37	suppressed
Diclofenac Sodium	Diclofenac Sodium	35	14
Dicyclomine Hcl	Dicyclomine Hcl	35	suppressed
Finasteride	Finasteride	34	11
Citalopram Hbr	Citalopram Hydrobromide	33	suppressed
Enalapril Maleate	Enalapril Maleate	31	suppressed
Buspirone Hcl	Buspirone Hcl	30	suppressed
Duloxetine Hcl	Duloxetine Hcl	30	suppressed
Tramadol Hcl	Tramadol Hcl	30	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	30	suppressed
Alendronate Sodium	Alendronate Sodium	29	suppressed
Benazepril Hcl	Benazepril Hcl	29	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	29	suppressed
Meloxicam	Meloxicam	29	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	28	suppressed
Glipizide Er	Glipizide	27	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	27	suppressed
Ezetimibe	Ezetimibe	26	suppressed
Nystatin	Nystatin	24	suppressed
Rybelsus	Semaglutide	24	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	23	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	22	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	22	suppressed
Mounjaro	Tirzepatide	21	suppressed
Clonazepam	Clonazepam	20	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	20	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	19	suppressed
Digoxin	Digoxin	18	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	18	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	18	suppressed
Morphine Sulfate Er	Morphine Sulfate	18	suppressed
Nitroglycerin	Nitroglycerin	18	13
Symbicort	Budesonide/Formoterol Fumarate	18	suppressed
Baclofen	Baclofen	17	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Pravastatin Sodium	Pravastatin Sodium	17	suppressed
Spiriva Handihaler	Tiotropium Bromide	17	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	17	13
Calcitriol	Calcitriol	16	suppressed
Lovastatin	Lovastatin	16	suppressed
Memantine Hcl	Memantine Hcl	16	suppressed
Montelukast Sodium	Montelukast Sodium	16	suppressed
Prednisone	Prednisone	16	suppressed
Bupropion Hcl Sr	Bupropion Hcl	15	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	15	suppressed
Irbesartan	Irbesartan	15	suppressed
Lorazepam	Lorazepam	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Trospium Chloride Er	Trospium Chloride	15	suppressed
Donepezil Hcl	Donepezil Hcl	14	suppressed
Januvia	Sitagliptin Phosphate	14	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	14	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	14	suppressed
Betamethasone Diprop Augmented	Betamethasone/Propylene Glyc	13	suppressed
Bupropion Xl	Bupropion Hcl	13	suppressed
Chlorthalidone	Chlorthalidone	13	suppressed
Nifedipine Er	Nifedipine	13	suppressed
Nystop	Nystatin	13	suppressed
Topiramate	Topiramate	13	suppressed
Ventolin Hfa	Albuterol Sulfate	13	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	12	suppressed
Elmiron	Pentosan Polysulfate Sodium	12	suppressed
Ibuprofen	Ibuprofen	12	suppressed
Tolterodine Tartrate	Tolterodine Tartrate	12	suppressed
Trulicity	Dulaglutide	12	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	12	suppressed
Zonisamide	Zonisamide	12	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	11	suppressed
Celecoxib	Celecoxib	11	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	11	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	11	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Meclizine Hcl	Meclizine Hcl	11	suppressed
Naproxen	Naproxen	11	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	11	suppressed
Percocet	Oxycodone Hcl/Acetaminophen	11	suppressed

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.

Year	General Payments	Main payer	Explicit products	Company overlaps	Part D coverage
2025	—	—	—	—	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

Are there reasonable alternatives I should understand when we discuss treatment options?
How should I interpret the industry-payment records shown here in the context of my care?

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.

Loaded source releases

Dataset	Year	Publication	Source
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