Healthcare provider profile · identity verified

Marc Alan Workman, MD

Family Practice · LOUISA, KY · NPI 1598859464

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
Gabapentin	Gabapentin	1053	145
Atorvastatin Calcium	Atorvastatin Calcium	943	219
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	909	136
Lisinopril	Lisinopril	896	199
Levothyroxine Sodium	Levothyroxine Sodium	820	158
Amlodipine Besylate	Amlodipine Besylate	691	164
Omeprazole	Omeprazole	646	147
Pantoprazole Sodium	Pantoprazole Sodium	607	154
Rosuvastatin Calcium	Rosuvastatin Calcium	589	141
Metoprolol Succinate	Metoprolol Succinate	520	108
Carvedilol	Carvedilol	467	102
Furosemide	Furosemide	464	126
Tamsulosin Hcl	Tamsulosin Hcl	457	106
Metformin Hcl Er	Metformin Hcl	389	90
Potassium Chloride	Potassium Chloride	368	92
Trazodone Hcl	Trazodone Hcl	361	93
Hydrochlorothiazide	Hydrochlorothiazide	345	89
Losartan Potassium	Losartan Potassium	340	86
Duloxetine Hcl	Duloxetine Hcl	331	78
Citalopram Hbr	Citalopram Hydrobromide	322	68
Metformin Hcl	Metformin Hcl	315	78
Eliquis	Apixaban	314	67
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	310	50
Simvastatin	Simvastatin	301	71
Albuterol Sulfate Hfa	Albuterol Sulfate	300	96
Tramadol Hcl	Tramadol Hcl	282	57
Tizanidine Hcl	Tizanidine Hcl	263	73
Fluticasone Propionate	Fluticasone Propionate	261	88
Montelukast Sodium	Montelukast Sodium	259	62
Prednisone	Prednisone	244	140
Ibuprofen	Ibuprofen	223	65
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	209	44
Metoprolol Tartrate	Metoprolol Tartrate	209	63
Allopurinol	Allopurinol	198	45
Ropinirole Hcl	Ropinirole Hcl	195	36
Pioglitazone Hcl	Pioglitazone Hcl	193	50
Lorazepam	Lorazepam	188	40
Mirtazapine	Mirtazapine	185	43
Clopidogrel	Clopidogrel Bisulfate	182	44
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	182	50
Alprazolam	Alprazolam	180	31
Ozempic	Semaglutide	180	33
Clonazepam	Clonazepam	177	21
Bupropion Xl	Bupropion Hcl	174	36
Famotidine	Famotidine	171	44
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	168	33
Ondansetron Hcl	Ondansetron Hcl	165	62
Escitalopram Oxalate	Escitalopram Oxalate	163	44
Warfarin Sodium	Warfarin Sodium	163	24
Pravastatin Sodium	Pravastatin Sodium	159	41
Celecoxib	Celecoxib	157	36
Donepezil Hcl	Donepezil Hcl	154	48
Alendronate Sodium	Alendronate Sodium	153	32
Ezetimibe	Ezetimibe	152	37
Synthroid	Levothyroxine Sodium	143	32
Meloxicam	Meloxicam	137	37
Diclofenac Sodium	Diclofenac Sodium	136	40
Pregabalin	Pregabalin	127	23
Doxycycline Hyclate	Doxycycline Hyclate	125	95
Esomeprazole Magnesium	Esomeprazole Magnesium	116	28
Januvia	Sitagliptin Phosphate	115	21
Glimepiride	Glimepiride	111	27
Glipizide	Glipizide	108	25
Sertraline Hcl	Sertraline Hcl	107	25
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	105	27
Venlafaxine Hcl Er	Venlafaxine Hcl	104	25
Fenofibrate	Fenofibrate	100	21
Finasteride	Finasteride	100	27
Jardiance	Empagliflozin	95	23
Isosorbide Mononitrate Er	Isosorbide Mononitrate	92	24
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	90	27
Buspirone Hcl	Buspirone Hcl	88	25
Meclizine Hcl	Meclizine Hcl	87	33
Triamcinolone Acetonide	Triamcinolone Acetonide	87	55
Oxycodone Hcl	Oxycodone Hcl	81	11
Fluconazole	Fluconazole	80	45
Hydralazine Hcl	Hydralazine Hcl	80	18
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	80	16
Ventolin Hfa	Albuterol Sulfate	78	22
Mounjaro	Tirzepatide	75	14
Cephalexin	Cephalexin	74	57
Fluoxetine Hcl	Fluoxetine Hcl	74	17
Spironolactone	Spironolactone	74	20
Vitamin D2	Ergocalciferol (Vitamin D2)	73	16
Mupirocin	Mupirocin	69	45
Sucralfate	Sucralfate	69	24
Paroxetine Hcl	Paroxetine Hcl	67	14
Hydroxyzine Hcl	Hydroxyzine Hcl	64	31
Ketoconazole	Ketoconazole	64	36
Nitroglycerin	Nitroglycerin	64	34
Xarelto	Rivaroxaban	64	13
Olmesartan Medoxomil	Olmesartan Medoxomil	63	suppressed
Rybelsus	Semaglutide	62	13
Methadone Hcl	Methadone Hcl	60	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	60	48
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	59	15
Aripiprazole	Aripiprazole	56	12
Valsartan	Valsartan	56	15
Atenolol	Atenolol	55	12
Cefdinir	Cefdinir	53	48
Oxybutynin Chloride Er	Oxybutynin Chloride	53	15
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	53	16
Dicyclomine Hcl	Dicyclomine Hcl	52	14
Ondansetron Odt	Ondansetron	52	14
Glipizide Er	Glipizide	51	21
Diazepam	Diazepam	50	suppressed
Clonidine Hcl	Clonidine Hcl	49	15
Nifedipine Er	Nifedipine	49	suppressed
Promethazine Hcl	Promethazine Hcl	48	suppressed
Methocarbamol	Methocarbamol	47	13
Sotalol	Sotalol Hcl	46	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	46	13
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	45	38
Azelastine Hcl	Azelastine Hcl	43	11
Farxiga	Dapagliflozin Propanediol	42	suppressed
Estradiol	Estradiol	40	12
Oxybutynin Chloride	Oxybutynin Chloride	40	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	40	suppressed
Azithromycin	Azithromycin	39	35
Colestipol Hcl	Colestipol Hcl	39	14
Lactulose	Lactulose	39	17
Linzess	Linaclotide	38	12
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	36	suppressed
Levofloxacin	Levofloxacin	36	35
Nystatin	Nystatin	36	25
Benazepril Hcl	Benazepril Hcl	35	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	35	suppressed
Morphine Sulfate Er	Morphine Sulfate	35	suppressed
Dexamethasone	Dexamethasone	34	32
Levetiracetam	Levetiracetam	34	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	33	suppressed
Naproxen	Naproxen	33	suppressed
Topiramate	Topiramate	33	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	32	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	32	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	32	11
Zolpidem Tartrate	Zolpidem Tartrate	32	suppressed
Labetalol Hcl	Labetalol Hcl	31	suppressed
Novolog Flexpen	Insulin Aspart	31	11
Terbinafine Hcl	Terbinafine Hcl	31	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	30	suppressed
Chlorthalidone	Chlorthalidone	29	suppressed
Breo Ellipta	Fluticasone/Vilanterol	28	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	28	suppressed
Trulicity	Dulaglutide	28	suppressed
Amoxicillin	Amoxicillin	27	24
Tradjenta	Linagliptin	27	suppressed
Valacyclovir	Valacyclovir Hcl	27	15
Amitriptyline Hcl	Amitriptyline Hcl	26	suppressed
Hydrocortisone	Hydrocortisone	26	12
Nebivolol Hcl	Nebivolol Hcl	26	suppressed
Amiodarone Hcl	Amiodarone Hcl	25	11
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	25	suppressed
Dropsafe Prep Pads	Alcohol Antiseptic Pads	25	suppressed
Enulose	Lactulose	25	15
Ciprofloxacin Hcl	Ciprofloxacin Hcl	23	19
Ipratropium Bromide	Ipratropium Bromide	23	suppressed
Clobetasol Propionate	Clobetasol Propionate	22	suppressed
Insulin Syringe	Syringe And Needle,insulin,1ml	22	suppressed
Ranolazine Er	Ranolazine	22	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	22	suppressed
Xifaxan	Rifaximin	22	suppressed
Anastrozole	Anastrozole	21	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	21	suppressed
Methotrexate	Methotrexate Sodium	21	suppressed
Novolog	Insulin Aspart	21	suppressed
Risperidone	Risperidone	21	suppressed
Lansoprazole	Lansoprazole	20	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Lovastatin	Lovastatin	20	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	20	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	19	suppressed
Bupropion Hcl Sr	Bupropion Hcl	19	suppressed
Digoxin	Digoxin	19	suppressed
Klor-Con M20	Potassium Chloride	19	suppressed
Loperamide	Loperamide Hcl	19	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	19	suppressed
Clindamycin Hcl	Clindamycin Hcl	18	12
Flecainide Acetate	Flecainide Acetate	18	suppressed
Lamotrigine	Lamotrigine	18	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	18	15
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	18	suppressed
Metolazone	Metolazone	17	suppressed
Metronidazole	Metronidazole	17	16
Nyamyc	Nystatin	17	suppressed
Torsemide	Torsemide	17	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	16	suppressed
Doxepin Hcl	Doxepin Hcl	16	suppressed
Ibandronate Sodium	Ibandronate Sodium	16	suppressed
Memantine Hcl	Memantine Hcl	16	suppressed
Pyridostigmine Bromide	Pyridostigmine Bromide	16	suppressed
Zypitamag	Pitavastatin Magnesium	16	suppressed
Avonex (4 Pack)	Interferon Beta-1a	15	suppressed
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	15	suppressed
Dexlansoprazole Dr	Dexlansoprazole	15	suppressed
Fluocinonide	Fluocinonide	15	suppressed
Irbesartan	Irbesartan	15	suppressed
Niacin Er	Niacin	15	suppressed
Propranolol Hcl	Propranolol Hcl	15	suppressed
Propranolol Hcl Er	Propranolol Hcl	15	suppressed
Temazepam	Temazepam	15	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Repatha Syringe	Evolocumab	14	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	13	suppressed
Baclofen	Baclofen	13	suppressed
Bumetanide	Bumetanide	13	suppressed
Humalog Kwikpen U-100	Insulin Lispro	13	suppressed
Indomethacin	Indomethacin	13	suppressed
Savella	Milnacipran Hcl	13	suppressed
Vancomycin Hcl	Vancomycin Hcl	13	suppressed
Ibu	Ibuprofen	12	suppressed
Midodrine Hcl	Midodrine Hcl	12	suppressed
Oxazepam	Oxazepam	12	suppressed
Prolia	Denosumab	12	suppressed
Zolmitriptan	Zolmitriptan	12	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	11	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	11	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	11	suppressed
Epinephrine	Epinephrine	11	suppressed
Fluticasone Propionate Hfa	Fluticasone Propionate	11	suppressed
Folic Acid	Folic Acid	11	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	11	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	11	suppressed
Procto-Med Hc	Hydrocortisone	11	suppressed
Rabeprazole Sodium	Rabeprazole Sodium	11	suppressed
Rexulti	Brexpiprazole	11	suppressed
Solifenacin Succinate	Solifenacin Succinate	11	suppressed
Symbicort	Budesonide/Formoterol Fumarate	11	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	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