Healthcare provider profile · identity verified

Mark Donald Mackay, DO

Family Practice · BROADWAY, VA · NPI 1427618735

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	458	152
Losartan Potassium	Losartan Potassium	302	95
Lisinopril	Lisinopril	287	93
Rosuvastatin Calcium	Rosuvastatin Calcium	279	81
Amlodipine Besylate	Amlodipine Besylate	271	84
Omeprazole	Omeprazole	268	78
Levothyroxine Sodium	Levothyroxine Sodium	265	74
Albuterol Sulfate Hfa	Albuterol Sulfate	205	64
Metformin Hcl Er	Metformin Hcl	185	63
Tamsulosin Hcl	Tamsulosin Hcl	174	55
Furosemide	Furosemide	172	53
Metoprolol Succinate	Metoprolol Succinate	158	49
Eliquis	Apixaban	150	30
Sertraline Hcl	Sertraline Hcl	149	38
Hydrochlorothiazide	Hydrochlorothiazide	147	46
Pantoprazole Sodium	Pantoprazole Sodium	143	51
Metformin Hcl	Metformin Hcl	130	42
Buspirone Hcl	Buspirone Hcl	128	34
Glimepiride	Glimepiride	123	40
Gabapentin	Gabapentin	122	37
Montelukast Sodium	Montelukast Sodium	117	34
Simvastatin	Simvastatin	117	28
Duloxetine Hcl	Duloxetine Hcl	109	33
Bupropion Xl	Bupropion Hcl	97	22
Ozempic	Semaglutide	97	28
Jardiance	Empagliflozin	96	33
Carvedilol	Carvedilol	89	23
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	86	26
Trazodone Hcl	Trazodone Hcl	81	26
Pravastatin Sodium	Pravastatin Sodium	78	25
Trulicity	Dulaglutide	78	20
Ezetimibe	Ezetimibe	76	23
Metoprolol Tartrate	Metoprolol Tartrate	70	27
Citalopram Hbr	Citalopram Hydrobromide	69	20
Fluticasone Propionate	Fluticasone Propionate	69	31
Potassium Chloride	Potassium Chloride	69	19
Quetiapine Fumarate	Quetiapine Fumarate	67	15
Pregabalin	Pregabalin	66	19
Escitalopram Oxalate	Escitalopram Oxalate	65	17
Famotidine	Famotidine	60	19
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	55	15
Pioglitazone Hcl	Pioglitazone Hcl	55	16
Clopidogrel	Clopidogrel Bisulfate	54	14
Doxycycline Hyclate	Doxycycline Hyclate	54	47
Prednisone	Prednisone	53	47
Spironolactone	Spironolactone	53	22
Esomeprazole Magnesium	Esomeprazole Magnesium	51	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	49	17
Allopurinol	Allopurinol	48	15
Meloxicam	Meloxicam	46	16
Fluoxetine Hcl	Fluoxetine Hcl	43	16
Ropinirole Hcl	Ropinirole Hcl	40	15
Synthroid	Levothyroxine Sodium	39	suppressed
Donepezil Hcl	Donepezil Hcl	38	suppressed
Tizanidine Hcl	Tizanidine Hcl	34	14
Finasteride	Finasteride	33	14
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	33	11
Triamcinolone Acetonide	Triamcinolone Acetonide	33	20
Warfarin Sodium	Warfarin Sodium	33	suppressed
Glipizide Er	Glipizide	32	suppressed
Paroxetine Hcl	Paroxetine Hcl	31	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	31	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	31	suppressed
Farxiga	Dapagliflozin Propanediol	30	suppressed
Nifedipine Er	Nifedipine	30	suppressed
Rybelsus	Semaglutide	30	suppressed
Xarelto	Rivaroxaban	30	suppressed
Atenolol	Atenolol	29	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	29	suppressed
Tramadol Hcl	Tramadol Hcl	29	suppressed
Bumetanide	Bumetanide	28	suppressed
Fenofibrate	Fenofibrate	27	suppressed
Humulin N	Insulin Nph Human Isophane	27	suppressed
Ketoconazole	Ketoconazole	27	15
Mounjaro	Tirzepatide	27	suppressed
Terazosin Hcl	Terazosin Hcl	27	suppressed
Chlorthalidone	Chlorthalidone	26	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	26	16
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	24	suppressed
Januvia	Sitagliptin Phosphate	24	suppressed
Ondansetron Odt	Ondansetron	24	16
Alendronate Sodium	Alendronate Sodium	23	suppressed
Meclizine Hcl	Meclizine Hcl	23	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	22	suppressed
Celecoxib	Celecoxib	22	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	22	11
Hydralazine Hcl	Hydralazine Hcl	22	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	22	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	19
Cefadroxil	Cefadroxil	21	19
Cephalexin	Cephalexin	21	14
Nystatin	Nystatin	20	suppressed
Diclofenac Sodium	Diclofenac Sodium	19	suppressed
Naproxen	Naproxen	19	suppressed
Spiriva Respimat	Tiotropium Bromide	19	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	19	suppressed
Temazepam	Temazepam	19	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	18	suppressed
Breyna	Budesonide/Formoterol Fumarate	18	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	18	11
Ventolin Hfa	Albuterol Sulfate	18	11
Colchicine	Colchicine	17	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	17	suppressed
Novolog Flexpen	Insulin Aspart	17	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	17	12
Lorazepam	Lorazepam	16	suppressed
Topiramate	Topiramate	16	suppressed
Benazepril Hcl	Benazepril Hcl	15	suppressed
Gemtesa	Vibegron	15	suppressed
Lansoprazole	Lansoprazole	15	suppressed
Nitroglycerin	Nitroglycerin	15	12
Alprazolam	Alprazolam	14	suppressed
Azithromycin	Azithromycin	14	13
Mupirocin	Mupirocin	14	13
Propranolol Hcl Er	Propranolol Hcl	14	suppressed
Verapamil Er	Verapamil Hcl	14	suppressed
Bupropion Hcl Sr	Bupropion Hcl	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Eszopiclone	Eszopiclone	13	suppressed
Levetiracetam	Levetiracetam	13	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	13	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	13	suppressed
Clonazepam	Clonazepam	12	suppressed
Lamotrigine	Lamotrigine	12	suppressed
Lovastatin	Lovastatin	12	suppressed
Quetiapine Fumarate Er	Quetiapine Fumarate	12	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	12	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	11	suppressed
Fluconazole	Fluconazole	11	suppressed
Ipratropium Bromide	Ipratropium Bromide	11	suppressed
Memantine Hcl	Memantine Hcl	11	suppressed
Novolin N	Insulin Nph Human Isophane	11	suppressed
Symbicort	Budesonide/Formoterol Fumarate	11	suppressed
Valsartan	Valsartan	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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