Healthcare provider profile · identity verified

David Wayne Koontz, MD

Internal Medicine · GREENVILLE, SC · NPI 1750366647

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	474	126
Amlodipine Besylate	Amlodipine Besylate	374	102
Rosuvastatin Calcium	Rosuvastatin Calcium	309	89
Losartan Potassium	Losartan Potassium	308	83
Lisinopril	Lisinopril	284	79
Levothyroxine Sodium	Levothyroxine Sodium	279	73
Omeprazole	Omeprazole	270	81
Metoprolol Succinate	Metoprolol Succinate	227	62
Meloxicam	Meloxicam	204	87
Citalopram Hbr	Citalopram Hydrobromide	201	45
Gabapentin	Gabapentin	179	54
Metformin Hcl Er	Metformin Hcl	170	44
Pantoprazole Sodium	Pantoprazole Sodium	164	46
Fluticasone Propionate	Fluticasone Propionate	150	69
Potassium Chloride	Potassium Chloride	148	45
Lorazepam	Lorazepam	139	47
Pravastatin Sodium	Pravastatin Sodium	139	39
Ezetimibe	Ezetimibe	133	34
Zolpidem Tartrate	Zolpidem Tartrate	130	27
Synthroid	Levothyroxine Sodium	125	25
Trazodone Hcl	Trazodone Hcl	123	42
Alprazolam	Alprazolam	122	24
Montelukast Sodium	Montelukast Sodium	118	34
Simvastatin	Simvastatin	116	34
Hydrochlorothiazide	Hydrochlorothiazide	112	33
Tramadol Hcl	Tramadol Hcl	108	48
Bupropion Xl	Bupropion Hcl	102	35
Eliquis	Apixaban	97	29
Tamsulosin Hcl	Tamsulosin Hcl	94	25
Allopurinol	Allopurinol	92	27
Glipizide Er	Glipizide	89	25
Jardiance	Empagliflozin	82	25
Furosemide	Furosemide	81	29
Doxycycline Hyclate	Doxycycline Hyclate	79	73
Mounjaro	Tirzepatide	74	14
Hydralazine Hcl	Hydralazine Hcl	73	16
Sertraline Hcl	Sertraline Hcl	70	21
Donepezil Hcl	Donepezil Hcl	69	12
Methylprednisolone	Methylprednisolone	69	58
Spironolactone	Spironolactone	69	20
Metoprolol Tartrate	Metoprolol Tartrate	67	20
Fluoxetine Hcl	Fluoxetine Hcl	66	19
Cephalexin	Cephalexin	59	47
Metformin Hcl	Metformin Hcl	59	17
Famotidine	Famotidine	57	19
Albuterol Sulfate Hfa	Albuterol Sulfate	56	30
Esomeprazole Magnesium	Esomeprazole Magnesium	56	17
Januvia	Sitagliptin Phosphate	52	suppressed
Memantine Hcl	Memantine Hcl	51	13
Celecoxib	Celecoxib	49	16
Ozempic	Semaglutide	49	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	45	suppressed
Duloxetine Hcl	Duloxetine Hcl	45	12
Valsartan	Valsartan	43	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	42	17
Carvedilol	Carvedilol	42	12
Clopidogrel	Clopidogrel Bisulfate	42	12
Alendronate Sodium	Alendronate Sodium	41	13
Dutasteride	Dutasteride	41	suppressed
Clonidine Hcl	Clonidine Hcl	40	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	40	32
Irbesartan	Irbesartan	38	suppressed
Clonazepam	Clonazepam	37	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	33	27
Fenofibrate	Fenofibrate	33	suppressed
Estradiol	Estradiol	32	14
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	31	18
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	31	suppressed
Trulicity	Dulaglutide	31	suppressed
Lovastatin	Lovastatin	30	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	28	suppressed
Atenolol	Atenolol	27	suppressed
Finasteride	Finasteride	27	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	27	11
Nebivolol Hcl	Nebivolol Hcl	27	suppressed
Propranolol Hcl	Propranolol Hcl	27	suppressed
Pregabalin	Pregabalin	25	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	23	suppressed
Colchicine	Colchicine	22	12
Diclofenac Sodium	Diclofenac Sodium	21	14
Ondansetron Odt	Ondansetron	20	15
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	19	suppressed
Warfarin Sodium	Warfarin Sodium	19	suppressed
Prednisone	Prednisone	18	suppressed
Azithromycin	Azithromycin	17	13
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	17	suppressed
Lansoprazole	Lansoprazole	17	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	17	suppressed
Rizatriptan	Rizatriptan Benzoate	17	suppressed
Torsemide	Torsemide	17	suppressed
Verapamil Er	Verapamil Hcl	17	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	17	suppressed
Farxiga	Dapagliflozin Propanediol	16	suppressed
Myrbetriq	Mirabegron	16	suppressed
Ramipril	Ramipril	16	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	15	suppressed
Midodrine Hcl	Midodrine Hcl	15	suppressed
Mirtazapine	Mirtazapine	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Amiodarone Hcl	Amiodarone Hcl	14	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	14
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	14	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	14	suppressed
Famciclovir	Famciclovir	14	suppressed
Forteo	Teriparatide	14	suppressed
Meclizine Hcl	Meclizine Hcl	14	11
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	14	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	13	suppressed
Colesevelam Hcl	Colesevelam Hcl	13	suppressed
Fluconazole	Fluconazole	13	12
Ipratropium Bromide	Ipratropium Bromide	13	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	13	suppressed
Nifedipine Er	Nifedipine	13	suppressed
Propranolol Hcl Er	Propranolol Hcl	13	suppressed
Risperidone	Risperidone	13	suppressed
Testosterone	Testosterone	13	suppressed
Alprazolam Er	Alprazolam	12	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	12	suppressed
Levoxyl	Levothyroxine Sodium	12	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	12	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	12	suppressed
Sucralfate	Sucralfate	12	suppressed
Atomoxetine Hcl	Atomoxetine Hcl	11	suppressed
Breo Ellipta	Fluticasone/Vilanterol	11	suppressed
Enalapril Maleate	Enalapril Maleate	11	suppressed
Eszopiclone	Eszopiclone	11	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	11	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	11	suppressed
Silodosin	Silodosin	11	suppressed
Spiriva Handihaler	Tiotropium Bromide	11	suppressed
Temazepam	Temazepam	11	suppressed
Topiramate	Topiramate	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