Healthcare provider profile · identity verified

Thomas E. Barker, M.D.

Internal Medicine · FORT WORTH, TX · NPI 1295775542

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	1309	380
Levothyroxine Sodium	Levothyroxine Sodium	641	187
Amlodipine Besylate	Amlodipine Besylate	562	181
Lisinopril	Lisinopril	454	132
Simvastatin	Simvastatin	419	124
Pravastatin Sodium	Pravastatin Sodium	362	104
Losartan Potassium	Losartan Potassium	329	108
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	317	102
Rosuvastatin Calcium	Rosuvastatin Calcium	296	93
Omeprazole	Omeprazole	293	85
Escitalopram Oxalate	Escitalopram Oxalate	291	94
Trazodone Hcl	Trazodone Hcl	283	68
Gabapentin	Gabapentin	269	81
Pantoprazole Sodium	Pantoprazole Sodium	238	73
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	218	67
Metoprolol Succinate	Metoprolol Succinate	212	68
Alprazolam	Alprazolam	171	49
Carvedilol	Carvedilol	165	47
Ezetimibe	Ezetimibe	165	56
Metformin Hcl	Metformin Hcl	162	51
Tamsulosin Hcl	Tamsulosin Hcl	162	52
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	162	45
Montelukast Sodium	Montelukast Sodium	150	46
Citalopram Hbr	Citalopram Hydrobromide	140	40
Glimepiride	Glimepiride	137	45
Eliquis	Apixaban	135	31
Metformin Hcl Er	Metformin Hcl	131	43
Hydrochlorothiazide	Hydrochlorothiazide	130	40
Fluticasone Propionate	Fluticasone Propionate	118	46
Sertraline Hcl	Sertraline Hcl	110	36
Albuterol Sulfate Hfa	Albuterol Sulfate	108	42
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	107	25
Alendronate Sodium	Alendronate Sodium	101	30
Furosemide	Furosemide	101	36
Zolpidem Tartrate	Zolpidem Tartrate	99	23
Meloxicam	Meloxicam	96	32
Ozempic	Semaglutide	96	17
Potassium Chloride	Potassium Chloride	95	32
Allopurinol	Allopurinol	93	28
Tramadol Hcl	Tramadol Hcl	93	25
Synthroid	Levothyroxine Sodium	92	27
Valsartan	Valsartan	91	28
Clopidogrel	Clopidogrel Bisulfate	89	28
Bupropion Xl	Bupropion Hcl	87	26
Lovastatin	Lovastatin	82	24
Esomeprazole Magnesium	Esomeprazole Magnesium	80	27
Jardiance	Empagliflozin	79	23
Temazepam	Temazepam	77	14
Atenolol	Atenolol	75	19
Ezetimibe-Simvastatin	Ezetimibe/Simvastatin	74	25
Synjardy Xr	Empagliflozin/Metformin Hcl	73	18
Fluoxetine Hcl	Fluoxetine Hcl	72	20
Metoprolol Tartrate	Metoprolol Tartrate	71	21
Tresiba Flextouch U-100	Insulin Degludec	65	14
Warfarin Sodium	Warfarin Sodium	61	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	60	23
Ciprofloxacin Hcl	Ciprofloxacin Hcl	58	46
Paroxetine Hcl	Paroxetine Hcl	58	20
Buspirone Hcl	Buspirone Hcl	54	14
Tizanidine Hcl	Tizanidine Hcl	54	21
Glipizide Er	Glipizide	48	12
Celecoxib	Celecoxib	46	14
Ropinirole Hcl	Ropinirole Hcl	45	15
Estradiol	Estradiol	44	16
Mounjaro	Tirzepatide	44	suppressed
Clonazepam	Clonazepam	43	12
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	43	15
Oxybutynin Chloride Er	Oxybutynin Chloride	42	11
Lansoprazole	Lansoprazole	40	11
Prednisone	Prednisone	40	31
Duloxetine Hcl	Duloxetine Hcl	39	11
Venlafaxine Hcl Er	Venlafaxine Hcl	39	11
Benazepril Hcl	Benazepril Hcl	38	12
Finasteride	Finasteride	37	13
Xigduo Xr	Dapaglifloz Propaned/Metformin	37	suppressed
Bupropion Hcl Sr	Bupropion Hcl	35	suppressed
Spironolactone	Spironolactone	35	suppressed
Valacyclovir	Valacyclovir Hcl	35	16
Ibandronate Sodium	Ibandronate Sodium	34	18
Trulicity	Dulaglutide	34	suppressed
Tresiba Flextouch U-200	Insulin Degludec	32	suppressed
Acyclovir	Acyclovir	31	suppressed
Donepezil Hcl	Donepezil Hcl	31	12
Mirtazapine	Mirtazapine	31	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	30	suppressed
Labetalol Hcl	Labetalol Hcl	30	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	30	suppressed
Fenofibrate	Fenofibrate	28	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	28	suppressed
Naproxen	Naproxen	28	suppressed
Xarelto	Rivaroxaban	28	suppressed
Famotidine	Famotidine	27	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	27	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Livalo	Pitavastatin Calcium	25	suppressed
Memantine Hcl	Memantine Hcl	25	suppressed
Farxiga	Dapagliflozin Propanediol	24	suppressed
Ondansetron Hcl	Ondansetron Hcl	24	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	22	suppressed
Colesevelam Hcl	Colesevelam Hcl	22	suppressed
Nifedipine Er	Nifedipine	22	suppressed
Symbicort	Budesonide/Formoterol Fumarate	22	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	21	suppressed
Fluconazole	Fluconazole	21	12
Myrbetriq	Mirabegron	21	suppressed
Novolog Flexpen	Insulin Aspart	21	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	20	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	20	suppressed
Hydralazine Hcl	Hydralazine Hcl	20	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	20	11
Paxlovid	Nirmatrelvir/Ritonavir	19	19
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	18	suppressed
Verapamil Er	Verapamil Hcl	18	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	17	suppressed
Azithromycin	Azithromycin	17	17
Bisoprolol Fumarate	Bisoprolol Fumarate	17	suppressed
Chlorthalidone	Chlorthalidone	17	suppressed
Glipizide	Glipizide	17	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	17	15
Olmesartan Medoxomil	Olmesartan Medoxomil	17	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	17	suppressed
Terazosin Hcl	Terazosin Hcl	17	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	17	suppressed
Baclofen	Baclofen	16	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	16	suppressed
Humalog Kwikpen U-100	Insulin Lispro	16	suppressed
Humulin R	Insulin Regular, Human	16	suppressed
Testosterone	Testosterone	16	suppressed
Clonidine Hcl	Clonidine Hcl	15	suppressed
Eszopiclone	Eszopiclone	15	suppressed
Irbesartan	Irbesartan	15	suppressed
Levemir Flexpen	Insulin Detemir	15	suppressed
Nystatin	Nystatin	15	11
Ramipril	Ramipril	15	suppressed
Solifenacin Succinate	Solifenacin Succinate	15	suppressed
Telmisartan	Telmisartan	15	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	14	suppressed
Janumet Xr	Sitagliptin Phos/Metformin Hcl	14	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	14	suppressed
Premarin	Estrogens, Conjugated	14	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	14	suppressed
Testosterone Cypionate	Testosterone Cypionate	14	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	13	suppressed
Lorazepam	Lorazepam	13	suppressed
Methocarbamol	Methocarbamol	13	suppressed
Topiramate	Topiramate	13	suppressed
Toprol Xl	Metoprolol Succinate	13	suppressed
Verapamil Hcl	Verapamil Hcl	13	suppressed
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	12	suppressed
Ondansetron Odt	Ondansetron	12	suppressed
Propranolol Hcl Er	Propranolol Hcl	12	suppressed
Abiraterone Acetate	Abiraterone Acetate	11	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	11	suppressed
Benazepril-Hydrochlorothiazide	Benazepril/Hydrochlorothiazide	11	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	11	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	11	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	11	suppressed
Jantoven	Warfarin Sodium	11	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	11	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	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