Healthcare provider profile · identity verified

Carol A Feuerstein, MD

Family Practice · MILWAUKEE, WI · NPI 1578594909

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	365	99
Amlodipine Besylate	Amlodipine Besylate	284	80
Levothyroxine Sodium	Levothyroxine Sodium	202	45
Lisinopril	Lisinopril	164	40
Metoprolol Succinate	Metoprolol Succinate	155	49
Gabapentin	Gabapentin	150	48
Potassium Chloride	Potassium Chloride	143	38
Metformin Hcl	Metformin Hcl	140	39
Pantoprazole Sodium	Pantoprazole Sodium	140	32
Losartan Potassium	Losartan Potassium	135	38
Omeprazole	Omeprazole	131	36
Furosemide	Furosemide	128	33
Hydrochlorothiazide	Hydrochlorothiazide	119	31
Carvedilol	Carvedilol	111	31
Rosuvastatin Calcium	Rosuvastatin Calcium	98	25
Albuterol Sulfate Hfa	Albuterol Sulfate	97	28
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	95	25
Spironolactone	Spironolactone	91	25
Glimepiride	Glimepiride	90	25
Sertraline Hcl	Sertraline Hcl	87	26
Simvastatin	Simvastatin	87	23
Escitalopram Oxalate	Escitalopram Oxalate	84	19
Bupropion Xl	Bupropion Hcl	81	21
Meloxicam	Meloxicam	73	22
Trulicity	Dulaglutide	64	suppressed
Buspirone Hcl	Buspirone Hcl	62	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	62	23
Pravastatin Sodium	Pravastatin Sodium	62	18
Hydralazine Hcl	Hydralazine Hcl	60	15
Metoprolol Tartrate	Metoprolol Tartrate	57	13
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	55	13
Duloxetine Hcl	Duloxetine Hcl	54	14
Atenolol	Atenolol	53	15
Alendronate Sodium	Alendronate Sodium	52	13
Clopidogrel	Clopidogrel Bisulfate	47	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	46	14
Montelukast Sodium	Montelukast Sodium	46	12
Fluoxetine Hcl	Fluoxetine Hcl	45	12
Ozempic	Semaglutide	45	suppressed
Eliquis	Apixaban	44	suppressed
Fluticasone Propionate	Fluticasone Propionate	43	18
Metformin Hcl Er	Metformin Hcl	43	14
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	40	19
Valsartan	Valsartan	40	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	39	suppressed
Lidocaine	Lidocaine	39	13
Hydroxyzine Hcl	Hydroxyzine Hcl	38	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	38	20
Mirtazapine	Mirtazapine	37	suppressed
Bumetanide	Bumetanide	36	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	36	suppressed
Famotidine	Famotidine	35	11
Allopurinol	Allopurinol	34	suppressed
Lorazepam	Lorazepam	33	suppressed
Tramadol Hcl	Tramadol Hcl	33	17
Trazodone Hcl	Trazodone Hcl	33	11
Venlafaxine Hcl Er	Venlafaxine Hcl	33	suppressed
Tizanidine Hcl	Tizanidine Hcl	31	15
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	29	suppressed
Estradiol	Estradiol	29	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	29	13
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	28	suppressed
Januvia	Sitagliptin Phosphate	27	suppressed
Finasteride	Finasteride	26	suppressed
Donepezil Hcl	Donepezil Hcl	25	suppressed
Lovastatin	Lovastatin	23	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	22	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	22	suppressed
Pregabalin	Pregabalin	22	suppressed
Glipizide	Glipizide	21	suppressed
Ibuprofen	Ibuprofen	21	suppressed
Nystatin	Nystatin	21	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	21	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	20	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	20	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	20	suppressed
Naproxen	Naproxen	20	suppressed
Ropinirole Hcl	Ropinirole Hcl	20	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	20	suppressed
Alprazolam	Alprazolam	19	suppressed
Bupropion Hcl Sr	Bupropion Hcl	19	suppressed
Rybelsus	Semaglutide	19	suppressed
Baclofen	Baclofen	18	suppressed
Ezetimibe	Ezetimibe	18	suppressed
Prednisone	Prednisone	18	13
Topiramate	Topiramate	18	suppressed
Diclofenac Sodium	Diclofenac Sodium	17	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	17	suppressed
Irbesartan	Irbesartan	17	suppressed
Ondansetron Odt	Ondansetron	17	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	17	16
Tradjenta	Linagliptin	17	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	16	suppressed
Doxepin Hcl	Doxepin Hcl	16	suppressed
Fluconazole	Fluconazole	16	12
Jardiance	Empagliflozin	16	suppressed
Tamsulosin Hcl	Tamsulosin Hcl	16	suppressed
Verapamil Sr	Verapamil Hcl	16	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	15	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	15	suppressed
Ketoconazole	Ketoconazole	15	suppressed
Mupirocin	Mupirocin	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Brilinta	Ticagrelor	14	suppressed
Farxiga	Dapagliflozin Propanediol	14	suppressed
Levetiracetam	Levetiracetam	14	suppressed
Meclizine Hcl	Meclizine Hcl	14	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	13	suppressed
Haloperidol	Haloperidol	13	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Ventolin Hfa	Albuterol Sulfate	13	suppressed
Citalopram Hbr	Citalopram Hydrobromide	12	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	12	suppressed
Insulin Aspart Flexpen	Insulin Aspart	12	suppressed
Naltrexone Hcl	Naltrexone Hcl	12	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	12	suppressed
Trintellix	Vortioxetine Hydrobromide	12	suppressed
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	12	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	12	suppressed
Warfarin Sodium	Warfarin Sodium	12	suppressed
Amiodarone Hcl	Amiodarone Hcl	11	suppressed
Gemfibrozil	Gemfibrozil	11	suppressed
Humalog Kwikpen U-200	Insulin Lispro	11	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	11	suppressed
Naloxone Hcl	Naloxone Hcl	11	suppressed
Ondansetron Hcl	Ondansetron Hcl	11	suppressed
Xarelto	Rivaroxaban	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