Healthcare provider profile · identity verified

Francis X O'Brien, MD

Internal Medicine · WINSTON SALEM, NC · NPI 1558348441

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
Losartan Potassium	Losartan Potassium	444	119
Amlodipine Besylate	Amlodipine Besylate	380	112
Atorvastatin Calcium	Atorvastatin Calcium	305	85
Rosuvastatin Calcium	Rosuvastatin Calcium	297	93
Omeprazole	Omeprazole	244	64
Carvedilol	Carvedilol	229	62
Levothyroxine Sodium	Levothyroxine Sodium	171	44
Metoprolol Succinate	Metoprolol Succinate	165	48
Hydrochlorothiazide	Hydrochlorothiazide	160	48
Gabapentin	Gabapentin	137	43
Pravastatin Sodium	Pravastatin Sodium	127	38
Alprazolam	Alprazolam	124	27
Tamsulosin Hcl	Tamsulosin Hcl	123	39
Eliquis	Apixaban	122	28
Pantoprazole Sodium	Pantoprazole Sodium	122	40
Potassium Chloride	Potassium Chloride	110	35
Lorazepam	Lorazepam	103	20
Fluticasone Propionate	Fluticasone Propionate	92	45
Oxycodone Hcl	Oxycodone Hcl	92	18
Furosemide	Furosemide	91	36
Lisinopril	Lisinopril	89	26
Prednisone	Prednisone	88	54
Simvastatin	Simvastatin	87	22
Metformin Hcl Er	Metformin Hcl	86	23
Ozempic	Semaglutide	84	13
Albuterol Sulfate Hfa	Albuterol Sulfate	76	29
Allopurinol	Allopurinol	76	17
Tramadol Hcl	Tramadol Hcl	74	18
Ezetimibe	Ezetimibe	67	19
Azithromycin	Azithromycin	66	42
Finasteride	Finasteride	66	20
Zolpidem Tartrate	Zolpidem Tartrate	61	19
Xarelto	Rivaroxaban	58	11
Metoprolol Tartrate	Metoprolol Tartrate	53	17
Acyclovir	Acyclovir	52	18
Glimepiride	Glimepiride	52	15
Metformin Hcl	Metformin Hcl	51	18
Spironolactone	Spironolactone	51	16
Famotidine	Famotidine	48	18
Verapamil Er	Verapamil Hcl	48	13
Warfarin Sodium	Warfarin Sodium	46	suppressed
Clopidogrel	Clopidogrel Bisulfate	44	14
Escitalopram Oxalate	Escitalopram Oxalate	42	13
Synthroid	Levothyroxine Sodium	42	13
Celecoxib	Celecoxib	41	12
Esomeprazole Magnesium	Esomeprazole Magnesium	39	12
Hydralazine Hcl	Hydralazine Hcl	39	11
Mirtazapine	Mirtazapine	39	14
Tizanidine Hcl	Tizanidine Hcl	39	suppressed
Symbicort	Budesonide/Formoterol Fumarate	38	suppressed
Enalapril Maleate	Enalapril Maleate	37	11
Triamcinolone Acetonide	Triamcinolone Acetonide	37	24
Jardiance	Empagliflozin	36	11
Benazepril Hcl	Benazepril Hcl	35	suppressed
Buspirone Hcl	Buspirone Hcl	34	suppressed
Duloxetine Hcl	Duloxetine Hcl	34	suppressed
Sertraline Hcl	Sertraline Hcl	34	11
Isosorbide Mononitrate Er	Isosorbide Mononitrate	32	suppressed
Terazosin Hcl	Terazosin Hcl	32	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	31	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	29	suppressed
Myrbetriq	Mirabegron	29	suppressed
Atenolol	Atenolol	28	suppressed
Clonazepam	Clonazepam	28	suppressed
Amoxicillin	Amoxicillin	27	18
Ciprofloxacin Hcl	Ciprofloxacin Hcl	27	16
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Montelukast Sodium	Montelukast Sodium	27	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	26	suppressed
Estradiol	Estradiol	26	suppressed
Ibuprofen	Ibuprofen	26	suppressed
Meloxicam	Meloxicam	26	11
Nitroglycerin	Nitroglycerin	26	12
Cephalexin	Cephalexin	25	19
Repatha Sureclick	Evolocumab	25	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	24	13
Methylprednisolone	Methylprednisolone	24	17
Mounjaro	Tirzepatide	24	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	24	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	24	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	23	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	23	19
Januvia	Sitagliptin Phosphate	23	suppressed
Meclizine Hcl	Meclizine Hcl	23	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	21	suppressed
Donepezil Hcl	Donepezil Hcl	21	suppressed
Valacyclovir	Valacyclovir Hcl	21	11
Humalog Kwikpen U-100	Insulin Lispro	19	suppressed
Pregabalin	Pregabalin	19	suppressed
Colchicine	Colchicine	18	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	18	suppressed
Potassium Citrate Er	Potassium Citrate	18	suppressed
Temazepam	Temazepam	18	suppressed
Chlorthalidone	Chlorthalidone	17	suppressed
Bupropion Xl	Bupropion Hcl	16	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	16	suppressed
Klor-Con M10	Potassium Chloride	16	suppressed
Telmisartan	Telmisartan	16	suppressed
Humalog	Insulin Lispro	15	suppressed
Memantine Hcl	Memantine Hcl	15	suppressed
Nifedipine Er	Nifedipine	15	suppressed
Topiramate	Topiramate	15	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	15	suppressed
Ammonium Lactate	Ammonium Lactate	14	suppressed
Carbamazepine Er	Carbamazepine	14	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	14	11
Lansoprazole	Lansoprazole	14	suppressed
Ondansetron Hcl	Ondansetron Hcl	14	suppressed
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Citalopram Hbr	Citalopram Hydrobromide	13	suppressed
Labetalol Hcl	Labetalol Hcl	13	suppressed
Novolog Flexpen	Insulin Aspart	13	suppressed
Nystatin	Nystatin	13	suppressed
Praluent Pen	Alirocumab	13	suppressed
Trazodone Hcl	Trazodone Hcl	13	suppressed
Dabigatran Etexilate	Dabigatran Etexilate Mesylate	12	suppressed
Diazepam	Diazepam	12	suppressed
Dutasteride	Dutasteride	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	12	suppressed
Paroxetine Hcl	Paroxetine Hcl	12	suppressed
Sildenafil Citrate	Sildenafil Citrate	12	suppressed
Verapamil Sr	Verapamil Hcl	12	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	12	suppressed
Alendronate Sodium	Alendronate Sodium	11	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	11	suppressed
Glipizide	Glipizide	11	suppressed
Mupirocin	Mupirocin	11	suppressed
Propranolol Hcl	Propranolol Hcl	11	suppressed
Tresiba Flextouch U-100	Insulin Degludec	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