Healthcare provider profile · identity verified

Keith Peter Madsen, M.D.

Family Practice · BLACKSBURG, VA · NPI 1184884439

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
Levothyroxine Sodium	Levothyroxine Sodium	572	120
Atorvastatin Calcium	Atorvastatin Calcium	503	146
Rosuvastatin Calcium	Rosuvastatin Calcium	382	107
Losartan Potassium	Losartan Potassium	378	92
Gabapentin	Gabapentin	320	55
Amlodipine Besylate	Amlodipine Besylate	301	84
Furosemide	Furosemide	231	60
Famotidine	Famotidine	223	59
Omeprazole	Omeprazole	218	61
Lisinopril	Lisinopril	216	58
Pantoprazole Sodium	Pantoprazole Sodium	216	49
Celecoxib	Celecoxib	200	50
Pravastatin Sodium	Pravastatin Sodium	198	52
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	195	53
Lorazepam	Lorazepam	187	26
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	186	54
Metoprolol Succinate	Metoprolol Succinate	178	52
Glipizide Er	Glipizide	175	43
Eliquis	Apixaban	167	33
Meloxicam	Meloxicam	165	37
Tamsulosin Hcl	Tamsulosin Hcl	158	48
Alprazolam	Alprazolam	153	27
Duloxetine Hcl	Duloxetine Hcl	149	32
Montelukast Sodium	Montelukast Sodium	145	36
Synthroid	Levothyroxine Sodium	139	31
Hydrochlorothiazide	Hydrochlorothiazide	138	39
Sertraline Hcl	Sertraline Hcl	132	39
Clopidogrel	Clopidogrel Bisulfate	123	27
Trulicity	Dulaglutide	122	21
Carvedilol	Carvedilol	118	29
Tramadol Hcl	Tramadol Hcl	114	17
Clonazepam	Clonazepam	111	12
Metoprolol Tartrate	Metoprolol Tartrate	101	31
Zolpidem Tartrate	Zolpidem Tartrate	100	24
Simvastatin	Simvastatin	94	25
Methylprednisolone	Methylprednisolone	91	73
Amitriptyline Hcl	Amitriptyline Hcl	88	16
Pregabalin	Pregabalin	82	16
Trazodone Hcl	Trazodone Hcl	81	27
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	80	18
Ipratropium Bromide	Ipratropium Bromide	79	31
Metformin Hcl Er	Metformin Hcl	77	18
Potassium Chloride	Potassium Chloride	77	18
Fluticasone Propionate	Fluticasone Propionate	71	22
Allopurinol	Allopurinol	69	20
Albuterol Sulfate Hfa	Albuterol Sulfate	68	21
Bupropion Xl	Bupropion Hcl	68	17
Metformin Hcl	Metformin Hcl	67	21
Spironolactone	Spironolactone	67	21
Alendronate Sodium	Alendronate Sodium	64	13
Fluoxetine Hcl	Fluoxetine Hcl	64	18
Cephalexin	Cephalexin	61	46
Escitalopram Oxalate	Escitalopram Oxalate	58	14
Mirtazapine	Mirtazapine	55	15
Prednisone	Prednisone	55	33
Venlafaxine Hcl Er	Venlafaxine Hcl	53	suppressed
Warfarin Sodium	Warfarin Sodium	51	11
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	50	13
Esomeprazole Magnesium	Esomeprazole Magnesium	48	15
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	48	11
Nebivolol Hcl	Nebivolol Hcl	48	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	47	19
Farxiga	Dapagliflozin Propanediol	45	11
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	44	suppressed
Nifedipine Er	Nifedipine	44	suppressed
Azelastine Hcl	Azelastine Hcl	43	12
Clonidine Hcl	Clonidine Hcl	42	suppressed
Jardiance	Empagliflozin	40	12
Azithromycin	Azithromycin	39	37
Doxycycline Hyclate	Doxycycline Hyclate	39	34
Colestipol Hcl	Colestipol Hcl	37	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	35	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	33	29
Felodipine Er	Felodipine	33	suppressed
Topiramate	Topiramate	33	suppressed
Buspirone Hcl	Buspirone Hcl	32	suppressed
Candesartan Cilexetil	Candesartan Cilexetil	32	suppressed
Finasteride	Finasteride	32	suppressed
Ibuprofen	Ibuprofen	32	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	29	suppressed
Ezetimibe	Ezetimibe	28	suppressed
Fluconazole	Fluconazole	28	15
Chlorthalidone	Chlorthalidone	27	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	27	suppressed
Donepezil Hcl	Donepezil Hcl	27	suppressed
Methocarbamol	Methocarbamol	27	suppressed
Valsartan	Valsartan	27	suppressed
Hydralazine Hcl	Hydralazine Hcl	26	suppressed
Ondansetron Odt	Ondansetron	26	15
Sucralfate	Sucralfate	26	suppressed
Myrbetriq	Mirabegron	24	suppressed
Paroxetine Hcl	Paroxetine Hcl	24	suppressed
Fenofibrate	Fenofibrate,micronized	23	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	23	suppressed
Lamotrigine	Lamotrigine	23	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	23	suppressed
Lansoprazole	Lansoprazole	22	suppressed
Xarelto	Rivaroxaban	22	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	21	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Citalopram Hbr	Citalopram Hydrobromide	21	suppressed
Estradiol	Estradiol	21	suppressed
Linzess	Linaclotide	21	suppressed
Raloxifene Hcl	Raloxifene Hcl	21	suppressed
Valacyclovir	Valacyclovir Hcl	21	15
Zaleplon	Zaleplon	21	suppressed
Amoxicillin	Amoxicillin	20	16
Ciprofloxacin Hcl	Ciprofloxacin Hcl	20	17
Diclofenac Sodium	Diclofenac Sodium	20	12
Levetiracetam	Levetiracetam	20	suppressed
Liothyronine Sodium	Liothyronine Sodium	20	suppressed
Symbicort	Budesonide/Formoterol Fumarate	20	suppressed
Doxepin Hcl	Doxepin Hcl	19	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	19	suppressed
Midodrine Hcl	Midodrine Hcl	18	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	18	18
Sotalol	Sotalol Hcl	18	suppressed
Testosterone Cypionate	Testosterone Cypionate	18	suppressed
Tizanidine Hcl	Tizanidine Hcl	18	suppressed
Atenolol	Atenolol	17	suppressed
Diltiazem 24hr Er (La)	Diltiazem Hcl	17	suppressed
Oxycodone Hcl	Oxycodone Hcl	17	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	17	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	16	suppressed
Methylphenidate Er	Methylphenidate Hcl	16	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	15	suppressed
Labetalol Hcl	Labetalol Hcl	15	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	15	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	15	suppressed
Ropinirole Hcl	Ropinirole Hcl	15	suppressed
Baclofen	Baclofen	14	suppressed
Belsomra	Suvorexant	14	suppressed
Bumetanide	Bumetanide	14	suppressed
Diazepam	Diazepam	14	suppressed
Spiriva Handihaler	Tiotropium Bromide	14	suppressed
Clobetasol Propionate	Clobetasol Propionate	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Eszopiclone	Eszopiclone	13	suppressed
Folic Acid	Folic Acid	13	suppressed
Lovastatin	Lovastatin	13	suppressed
Meclizine Hcl	Meclizine Hcl	13	suppressed
Memantine Hcl	Memantine Hcl	13	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	13	suppressed
Nystatin	Nystatin	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	13	13
Bupropion Hcl	Bupropion Hcl	12	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	12	suppressed
Mirabegron Er	Mirabegron	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	suppressed
Varenicline Tartrate	Varenicline Tartrate	12	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	11	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	11	suppressed
Dutasteride	Dutasteride	11	suppressed
Glimepiride	Glimepiride	11	suppressed
Incruse Ellipta	Umeclidinium Bromide	11	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	11	suppressed
Methimazole	Methimazole	11	suppressed
Propranolol Hcl Er	Propranolol Hcl	11	suppressed
Verapamil Er	Verapamil Hcl	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