Healthcare provider profile · identity verified

Charles T Kaufmann

Family Practice · WEST BEND, WI · NPI 1760564595

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	728	181
Levothyroxine Sodium	Levothyroxine Sodium	720	164
Simvastatin	Simvastatin	500	118
Lisinopril	Lisinopril	486	123
Omeprazole	Omeprazole	408	104
Amlodipine Besylate	Amlodipine Besylate	386	98
Metoprolol Succinate	Metoprolol Succinate	375	97
Furosemide	Furosemide	292	84
Metformin Hcl	Metformin Hcl	273	65
Atenolol	Atenolol	225	61
Glipizide Er	Glipizide	225	58
Pantoprazole Sodium	Pantoprazole Sodium	201	50
Allopurinol	Allopurinol	197	45
Meloxicam	Meloxicam	196	69
Enalapril Maleate	Enalapril Maleate	195	51
Metformin Hcl Er	Metformin Hcl	188	49
Losartan Potassium	Losartan Potassium	185	48
Warfarin Sodium	Warfarin Sodium	169	36
Tamsulosin Hcl	Tamsulosin Hcl	165	51
Metoprolol Tartrate	Metoprolol Tartrate	151	35
Hydrochlorothiazide	Hydrochlorothiazide	141	35
Sertraline Hcl	Sertraline Hcl	138	37
Lorazepam	Lorazepam	117	22
Rosuvastatin Calcium	Rosuvastatin Calcium	107	29
Gabapentin	Gabapentin	105	28
Spironolactone	Spironolactone	105	31
Clopidogrel	Clopidogrel Bisulfate	96	25
Potassium Chloride	Potassium Chloride	91	30
Albuterol Sulfate Hfa	Albuterol Sulfate	78	34
Alendronate Sodium	Alendronate Sodium	76	20
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	67	23
Ezetimibe	Ezetimibe	66	18
Alprazolam	Alprazolam	64	suppressed
Amoxicillin	Amoxicillin	58	35
Fluticasone Propionate	Fluticasone Propionate	58	19
Citalopram Hbr	Citalopram Hydrobromide	57	12
Ozempic	Semaglutide	57	suppressed
Gemfibrozil	Gemfibrozil	55	13
Triamcinolone Acetonide	Triamcinolone Acetonide	54	37
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	52	14
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	49	38
Clonidine Hcl	Clonidine Hcl	49	11
Trazodone Hcl	Trazodone Hcl	49	13
Carvedilol	Carvedilol	47	16
Oxybutynin Chloride	Oxybutynin Chloride	47	14
Lovastatin	Lovastatin	46	13
Zolpidem Tartrate	Zolpidem Tartrate	46	suppressed
Montelukast Sodium	Montelukast Sodium	44	13
Tramadol Hcl	Tramadol Hcl	44	15
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	43	11
Methylprednisolone	Methylprednisolone	43	41
Eliquis	Apixaban	42	12
Amitriptyline Hcl	Amitriptyline Hcl	40	11
Synthroid	Levothyroxine Sodium	40	suppressed
Jardiance	Empagliflozin	38	suppressed
Mounjaro	Tirzepatide	36	suppressed
Paroxetine Hcl	Paroxetine Hcl	36	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	35	32
Glipizide	Glipizide	35	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	35	suppressed
Propranolol Hcl	Propranolol Hcl	35	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	31	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	31	suppressed
Famotidine	Famotidine	30	suppressed
Pravastatin Sodium	Pravastatin Sodium	30	suppressed
Cephalexin	Cephalexin	29	19
Memantine Hcl	Memantine Hcl	29	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	28	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	27	24
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	27	18
Colchicine	Colchicine	27	suppressed
Diclofenac Sodium	Diclofenac Sodium	27	12
Finasteride	Finasteride	27	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	25	suppressed
Propranolol Hcl Er	Propranolol Hcl	25	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	25	16
Celecoxib	Celecoxib	24	suppressed
Januvia	Sitagliptin Phosphate	23	suppressed
Trulicity	Dulaglutide	23	suppressed
Bumetanide	Bumetanide	22	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	22	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	22	suppressed
Levetiracetam	Levetiracetam	22	suppressed
Prednisone	Prednisone	22	11
Glyxambi	Empagliflozin/Linagliptin	21	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	21	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	21	suppressed
Chlorthalidone	Chlorthalidone	19	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	19	18
Ondansetron Odt	Ondansetron	19	suppressed
Terazosin Hcl	Terazosin Hcl	19	suppressed
Acyclovir	Acyclovir	18	suppressed
Naproxen	Naproxen	18	suppressed
Nifedipine Er	Nifedipine	18	suppressed
Topiramate	Topiramate	18	suppressed
Xarelto	Rivaroxaban	18	suppressed
Azithromycin	Azithromycin	17	16
Insulin Syringe	Syringe And Needle,insulin,1ml	17	suppressed
Tradjenta	Linagliptin	17	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	17	suppressed
Donepezil Hcl	Donepezil Hcl	16	suppressed
Solifenacin Succinate	Solifenacin Succinate	16	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	16	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	15	suppressed
Humalog Kwikpen U-100	Insulin Lispro	15	suppressed
Meclizine Hcl	Meclizine Hcl	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Sildenafil Citrate	Sildenafil Citrate	15	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	14	suppressed
Ipratropium Bromide	Ipratropium Bromide	14	suppressed
Lansoprazole	Lansoprazole	14	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	14	suppressed
Benazepril Hcl	Benazepril Hcl	13	suppressed
Bupropion Hcl Sr	Bupropion Hcl	13	suppressed
Duloxetine Hcl	Duloxetine Hcl	13	suppressed
Metronidazole	Metronidazole	13	suppressed
Mupirocin	Mupirocin	13	suppressed
Nystatin	Nystatin	13	suppressed
Premarin	Estrogens, Conjugated	13	suppressed
Baclofen	Baclofen	12	suppressed
Clonazepam	Clonazepam	12	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	12	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	12	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	12	suppressed
Naproxen Sodium	Naproxen Sodium	12	suppressed
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	12	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	11	suppressed
Ibuprofen	Ibuprofen	11	suppressed
Nitroglycerin	Nitroglycerin	11	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	11	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	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

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