Healthcare provider profile · identity verified

Thomas J Halloran, MD

Internal Medicine · DANVILLE, IL · NPI 1588696785

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
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	1256	191
Atorvastatin Calcium	Atorvastatin Calcium	1144	416
Levothyroxine Sodium	Levothyroxine Sodium	928	320
Omeprazole	Omeprazole	815	276
Amlodipine Besylate	Amlodipine Besylate	777	283
Hydrochlorothiazide	Hydrochlorothiazide	688	238
Lisinopril	Lisinopril	670	251
Pantoprazole Sodium	Pantoprazole Sodium	576	194
Losartan Potassium	Losartan Potassium	572	201
Gabapentin	Gabapentin	555	198
Metoprolol Tartrate	Metoprolol Tartrate	541	199
Eliquis	Apixaban	511	143
Tamsulosin Hcl	Tamsulosin Hcl	467	169
Lorazepam	Lorazepam	459	135
Furosemide	Furosemide	440	174
Albuterol Sulfate Hfa	Albuterol Sulfate	417	149
Metoprolol Succinate	Metoprolol Succinate	405	145
Simvastatin	Simvastatin	347	119
Metformin Hcl	Metformin Hcl	339	128
Alprazolam	Alprazolam	296	65
Allopurinol	Allopurinol	282	91
Carvedilol	Carvedilol	277	106
Warfarin Sodium	Warfarin Sodium	266	74
Rosuvastatin Calcium	Rosuvastatin Calcium	265	92
Clopidogrel	Clopidogrel Bisulfate	258	87
Fluticasone Propionate	Fluticasone Propionate	245	90
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	228	86
Potassium Chloride	Potassium Chloride	227	77
Tramadol Hcl	Tramadol Hcl	200	65
Citalopram Hbr	Citalopram Hydrobromide	198	71
Trazodone Hcl	Trazodone Hcl	197	67
Famotidine	Famotidine	179	58
Montelukast Sodium	Montelukast Sodium	172	58
Finasteride	Finasteride	156	62
Lovastatin	Lovastatin	156	56
Atenolol	Atenolol	154	56
Glipizide	Glipizide	143	58
Duloxetine Hcl	Duloxetine Hcl	137	53
Ezetimibe	Ezetimibe	133	42
Jardiance	Empagliflozin	132	51
Sertraline Hcl	Sertraline Hcl	129	53
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	128	40
Glipizide Er	Glipizide	121	52
Pravastatin Sodium	Pravastatin Sodium	117	40
Isosorbide Mononitrate Er	Isosorbide Mononitrate	114	42
Meloxicam	Meloxicam	113	45
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	112	40
Zolpidem Tartrate	Zolpidem Tartrate	111	25
Clonazepam	Clonazepam	103	22
Ozempic	Semaglutide	99	21
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	96	25
Metformin Hcl Er	Metformin Hcl	93	32
Spironolactone	Spironolactone	92	34
Pregabalin	Pregabalin	91	28
Nitroglycerin	Nitroglycerin	89	51
Xarelto	Rivaroxaban	88	23
Tizanidine Hcl	Tizanidine Hcl	87	38
Diazepam	Diazepam	86	14
Doxazosin Mesylate	Doxazosin Mesylate	85	27
Fentanyl	Fentanyl	85	suppressed
Meclizine Hcl	Meclizine Hcl	80	38
Triamcinolone Acetonide	Triamcinolone Acetonide	78	50
Mirtazapine	Mirtazapine	76	21
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	72	28
Prednisone	Prednisone	72	55
Temazepam	Temazepam	72	17
Ropinirole Hcl	Ropinirole Hcl	70	29
Buspirone Hcl	Buspirone Hcl	69	21
Diclofenac Sodium	Diclofenac Sodium	68	22
Escitalopram Oxalate	Escitalopram Oxalate	67	26
Hydralazine Hcl	Hydralazine Hcl	65	22
Paroxetine Hcl	Paroxetine Hcl	63	27
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	62	25
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	60	50
Trulicity	Dulaglutide	60	20
Donepezil Hcl	Donepezil Hcl	59	20
Venlafaxine Hcl Er	Venlafaxine Hcl	58	19
Ondansetron Odt	Ondansetron	56	20
Propranolol Hcl	Propranolol Hcl	55	20
Jantoven	Warfarin Sodium	54	12
Baclofen	Baclofen	53	17
Torsemide	Torsemide	53	27
Estradiol	Estradiol	52	32
Sumatriptan Succinate	Sumatriptan Succinate	52	12
Breo Ellipta	Fluticasone/Vilanterol	51	18
Klor-Con M20	Potassium Chloride	51	18
Nystatin	Nystatin	50	27
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	50	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	49	45
Ibuprofen	Ibuprofen	49	16
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	48	15
Oxybutynin Chloride Er	Oxybutynin Chloride	45	16
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	45	13
Fluoxetine Hcl	Fluoxetine Hcl	44	14
Levetiracetam	Levetiracetam	44	17
Ventolin Hfa	Albuterol Sulfate	44	21
Celecoxib	Celecoxib	41	13
Fenofibrate	Fenofibrate Nanocrystallized	41	14
Mounjaro	Tirzepatide	41	15
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	41	14
Verapamil Er	Verapamil Hcl	41	14
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	40	16
Colestipol Hcl	Colestipol Hcl	40	22
Cephalexin	Cephalexin	38	28
Primidone	Primidone	38	17
Quetiapine Fumarate	Quetiapine Fumarate	37	11
Valsartan	Valsartan	37	11
Oxycodone Hcl	Oxycodone Hcl	36	11
Lantus	Insulin Glargine,hum.Rec.Anlog	34	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	34	16
Valacyclovir	Valacyclovir Hcl	34	15
Entresto	Sacubitril/Valsartan	33	13
Digoxin	Digoxin	31	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	30	11
Bupropion Xl	Bupropion Hcl	30	13
Methocarbamol	Methocarbamol	30	14
Ondansetron Hcl	Ondansetron Hcl	30	13
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	30	13
Azithromycin	Azithromycin	29	22
Fluconazole	Fluconazole	29	15
Propranolol Hcl Er	Propranolol Hcl	29	suppressed
Benazepril Hcl	Benazepril Hcl	28	suppressed
Terbinafine Hcl	Terbinafine Hcl	28	13
Humalog Kwikpen U-100	Insulin Lispro	27	suppressed
Naproxen	Naproxen	27	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	27	suppressed
Bupropion Hcl Sr	Bupropion Hcl	26	11
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	25	suppressed
Topiramate	Topiramate	25	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	24	12
Esomeprazole Magnesium	Esomeprazole Magnesium	24	suppressed
Fenofibrate	Fenofibrate	24	suppressed
Metolazone	Metolazone	24	11
Novolog Flexpen	Insulin Aspart	24	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	24	suppressed
Loperamide	Loperamide Hcl	23	suppressed
Midodrine Hcl	Midodrine Hcl	23	suppressed
Myrbetriq	Mirabegron	23	suppressed
Amiodarone Hcl	Amiodarone Hcl	21	suppressed
Synthroid	Levothyroxine Sodium	21	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	20	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	20	suppressed
Doxepin Hcl	Doxepin Hcl	20	suppressed
Flecainide Acetate	Flecainide Acetate	20	suppressed
Klor-Con M10	Potassium Chloride	20	suppressed
Lansoprazole	Lansoprazole	20	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	19	suppressed
Januvia	Sitagliptin Phosphate	19	suppressed
Zolmitriptan	Zolmitriptan	19	suppressed
Alendronate Sodium	Alendronate Sodium	18	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	18	14
Enoxaparin Sodium	Enoxaparin Sodium	18	suppressed
Sucralfate	Sucralfate	18	suppressed
Symbicort	Budesonide/Formoterol Fumarate	18	suppressed
Varenicline Tartrate	Varenicline Tartrate	18	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	17	suppressed
Clobetasol Propionate	Clobetasol Propionate	17	suppressed
Gemfibrozil	Gemfibrozil	17	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	17	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	17	suppressed
Bupropion Hcl	Bupropion Hcl	16	suppressed
Morphine Sulfate	Morphine Sulfate	16	suppressed
Linzess	Linaclotide	15	suppressed
Memantine Hcl	Memantine Hcl	15	suppressed
Mupirocin	Mupirocin	15	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	15	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	15	11
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	14	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	14	suppressed
Insulin Syringe	Syringe And Needle,insulin,1ml	14	suppressed
Oxycontin	Oxycodone Hcl	14	suppressed
Premarin	Estrogens, Conjugated	14	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	13	suppressed
Chlorthalidone	Chlorthalidone	13	suppressed
Divalproex Sodium Er	Divalproex Sodium	13	suppressed
Glipizide-Metformin	Glipizide/Metformin Hcl	13	suppressed
Hydrocortisone	Hydrocortisone	13	suppressed
Single Use Swab	Alcohol Antiseptic Pads	13	suppressed
Spiriva Respimat	Tiotropium Bromide	13	suppressed
Verapamil Sr	Verapamil Hcl	13	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	12	suppressed
Clotrimazole	Clotrimazole	12	suppressed
Irbesartan	Irbesartan	12	suppressed
Methadone Hcl	Methadone Hcl	12	suppressed
Morphine Sulfate Er	Morphine Sulfate	12	suppressed
Novofine Autocover	Pen Needle, Diabetic, Safety	12	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	12	suppressed
Prazosin Hcl	Prazosin Hcl	12	suppressed
Rybelsus	Semaglutide	12	suppressed
Tradjenta	Linagliptin	12	suppressed
Acarbose	Acarbose	11	suppressed
Azelastine Hcl	Azelastine Hcl	11	suppressed
Carbamazepine Er	Carbamazepine	11	suppressed
Glimepiride	Glimepiride	11	suppressed
Methimazole	Methimazole	11	suppressed
Naloxone Hcl	Naloxone Hcl	11	suppressed
Nebivolol Hcl	Nebivolol Hcl	11	suppressed
Olanzapine	Olanzapine	11	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	11	suppressed
Prasugrel Hcl	Prasugrel Hcl	11	suppressed
Spiriva Handihaler	Tiotropium Bromide	11	suppressed
Trueplus Pen Needle	Pen Needle, Diabetic	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