Healthcare provider profile · identity verified

Christopher Andrew Madden, M.D.

Internal Medicine · CLEMMONS, NC · NPI 1366446320

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	801	225
Amlodipine Besylate	Amlodipine Besylate	437	120
Levothyroxine Sodium	Levothyroxine Sodium	365	99
Lisinopril	Lisinopril	345	98
Rosuvastatin Calcium	Rosuvastatin Calcium	309	90
Trazodone Hcl	Trazodone Hcl	269	79
Losartan Potassium	Losartan Potassium	245	61
Omeprazole	Omeprazole	242	73
Hydrochlorothiazide	Hydrochlorothiazide	232	70
Sertraline Hcl	Sertraline Hcl	228	59
Metoprolol Succinate	Metoprolol Succinate	221	55
Ozempic	Semaglutide	209	31
Gabapentin	Gabapentin	197	63
Pantoprazole Sodium	Pantoprazole Sodium	197	59
Alprazolam	Alprazolam	189	42
Pravastatin Sodium	Pravastatin Sodium	181	53
Duloxetine Hcl	Duloxetine Hcl	175	35
Tamsulosin Hcl	Tamsulosin Hcl	173	51
Simvastatin	Simvastatin	168	49
Tramadol Hcl	Tramadol Hcl	159	37
Metformin Hcl Er	Metformin Hcl	143	44
Candesartan Cilexetil	Candesartan Cilexetil	139	36
Eliquis	Apixaban	129	29
Metformin Hcl	Metformin Hcl	122	34
Zolpidem Tartrate	Zolpidem Tartrate	119	35
Meloxicam	Meloxicam	115	35
Bupropion Xl	Bupropion Hcl	109	32
Lorazepam	Lorazepam	107	25
Alendronate Sodium	Alendronate Sodium	105	35
Chlorthalidone	Chlorthalidone	100	31
Escitalopram Oxalate	Escitalopram Oxalate	91	25
Carvedilol	Carvedilol	89	23
Jardiance	Empagliflozin	89	17
Fluticasone Propionate	Fluticasone Propionate	88	42
Ezetimibe	Ezetimibe	86	29
Furosemide	Furosemide	79	20
Celecoxib	Celecoxib	76	19
Myrbetriq	Mirabegron	74	14
Allopurinol	Allopurinol	72	25
Synthroid	Levothyroxine Sodium	71	19
Albuterol Sulfate Hfa	Albuterol Sulfate	70	24
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	68	14
Telmisartan	Telmisartan	65	16
Venlafaxine Hcl Er	Venlafaxine Hcl	61	15
Montelukast Sodium	Montelukast Sodium	58	18
Mirtazapine	Mirtazapine	55	13
Clonazepam	Clonazepam	54	16
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	54	15
Farxiga	Dapagliflozin Propanediol	53	suppressed
Xarelto	Rivaroxaban	48	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	45	13
Ipratropium Bromide	Ipratropium Bromide	44	suppressed
Glimepiride	Glimepiride	42	suppressed
Potassium Chloride	Potassium Chloride	41	14
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	39	suppressed
Tizanidine Hcl	Tizanidine Hcl	39	22
Amitriptyline Hcl	Amitriptyline Hcl	37	suppressed
Donepezil Hcl	Donepezil Hcl	37	13
Atenolol	Atenolol	36	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	36	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	34	17
Prednisone	Prednisone	34	23
Diclofenac Sodium	Diclofenac Sodium	33	16
Fluoxetine Hcl	Fluoxetine Hcl	33	12
Irbesartan	Irbesartan	33	suppressed
Pregabalin	Pregabalin	33	suppressed
Torsemide	Torsemide	33	12
Valsartan	Valsartan	33	11
Benazepril Hcl	Benazepril Hcl	32	suppressed
Citalopram Hbr	Citalopram Hydrobromide	32	suppressed
Diazepam	Diazepam	31	suppressed
Trulicity	Dulaglutide	31	suppressed
Finasteride	Finasteride	30	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	30	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	29	suppressed
Famotidine	Famotidine	29	suppressed
Ketoconazole	Ketoconazole	28	suppressed
Warfarin Sodium	Warfarin Sodium	28	suppressed
Mounjaro	Tirzepatide	26	suppressed
Propranolol Hcl	Propranolol Hcl	26	suppressed
Ramipril	Ramipril	25	suppressed
Amoxicillin	Amoxicillin	24	21
Clopidogrel	Clopidogrel Bisulfate	24	suppressed
Mometasone Furoate	Mometasone Furoate	24	15
Repatha Sureclick	Evolocumab	24	suppressed
Ibandronate Sodium	Ibandronate Sodium	23	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	23	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	22	suppressed
Memantine Hcl	Memantine Hcl	22	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	22	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	21	suppressed
Lovastatin	Lovastatin	21	suppressed
Premarin	Estrogens, Conjugated	21	suppressed
Fenofibrate	Fenofibrate	20	suppressed
Meclizine Hcl	Meclizine Hcl	20	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	20	suppressed
Azelastine Hcl	Azelastine Hcl	19	13
Lantus	Insulin Glargine,hum.Rec.Anlog	19	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	19	suppressed
Ondansetron Hcl	Ondansetron Hcl	19	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	18	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	18	18
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	17	suppressed
Valacyclovir	Valacyclovir Hcl	17	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	16	12
Olmesartan Medoxomil	Olmesartan Medoxomil	16	suppressed
Testosterone	Testosterone	16	suppressed
Topiramate	Topiramate	16	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	16	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	15	suppressed
Ibuprofen	Ibuprofen	15	suppressed
Naproxen	Naproxen	15	suppressed
Novolog Flexpen	Insulin Aspart	15	suppressed
Spironolactone	Spironolactone	15	suppressed
Temazepam	Temazepam	15	suppressed
Testosterone Cypionate	Testosterone Cypionate	15	suppressed
Hydralazine Hcl	Hydralazine Hcl	14	suppressed
Januvia	Sitagliptin Phosphate	14	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	14	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	14	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	13	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	13	13
Glipizide Er	Glipizide	13	suppressed
Primidone	Primidone	13	suppressed
Soliqua 100-33	Insulin Glargine/Lixisenatide	13	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	12	suppressed
Bumetanide	Bumetanide	12	suppressed
Bupropion Hcl	Bupropion Hcl	12	suppressed
Entresto	Sacubitril/Valsartan	12	suppressed
Estradiol	Estradiol	12	suppressed
Glipizide	Glipizide	12	suppressed
Lubiprostone	Lubiprostone	12	suppressed
Paroxetine Hcl	Paroxetine Hcl	12	suppressed
Solifenacin Succinate	Solifenacin Succinate	12	suppressed
Vilazodone Hcl	Vilazodone Hcl	12	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	11	11
Cephalexin	Cephalexin	11	suppressed
Lansoprazole	Lansoprazole	11	suppressed
Nitroglycerin	Nitroglycerin	11	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	11	suppressed
Risperidone	Risperidone	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