Healthcare provider profile · identity verified

William Arthur Stinson, MD

Internal Medicine · CRYSTAL LAKE, IL · NPI 1336112911

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	675	239
Levothyroxine Sodium	Levothyroxine Sodium	498	164
Amlodipine Besylate	Amlodipine Besylate	489	177
Losartan Potassium	Losartan Potassium	379	121
Lisinopril	Lisinopril	285	96
Pantoprazole Sodium	Pantoprazole Sodium	271	83
Rosuvastatin Calcium	Rosuvastatin Calcium	266	92
Metoprolol Succinate	Metoprolol Succinate	253	86
Alprazolam	Alprazolam	243	67
Gabapentin	Gabapentin	224	75
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	224	40
Metformin Hcl	Metformin Hcl	222	82
Omeprazole	Omeprazole	219	76
Tamsulosin Hcl	Tamsulosin Hcl	212	76
Irbesartan	Irbesartan	206	68
Zolpidem Tartrate	Zolpidem Tartrate	186	53
Allopurinol	Allopurinol	184	57
Carvedilol	Carvedilol	168	53
Hydrochlorothiazide	Hydrochlorothiazide	159	58
Escitalopram Oxalate	Escitalopram Oxalate	157	47
Simvastatin	Simvastatin	144	48
Celecoxib	Celecoxib	138	47
Sertraline Hcl	Sertraline Hcl	137	32
Bupropion Xl	Bupropion Hcl	130	30
Montelukast Sodium	Montelukast Sodium	129	49
Albuterol Sulfate Hfa	Albuterol Sulfate	127	39
Duloxetine Hcl	Duloxetine Hcl	109	35
Ezetimibe	Ezetimibe	108	31
Tramadol Hcl	Tramadol Hcl	102	35
Eliquis	Apixaban	101	27
Pravastatin Sodium	Pravastatin Sodium	96	38
Furosemide	Furosemide	95	41
Potassium Chloride	Potassium Chloride	92	29
Atenolol	Atenolol	80	30
Finasteride	Finasteride	80	27
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	78	26
Lorazepam	Lorazepam	74	24
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	72	21
Donepezil Hcl	Donepezil Hcl	72	17
Jardiance	Empagliflozin	65	19
Metoprolol Tartrate	Metoprolol Tartrate	63	20
Meloxicam	Meloxicam	60	17
Pregabalin	Pregabalin	59	13
Glipizide	Glipizide	55	19
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	55	19
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	54	17
Fluticasone Propionate	Fluticasone Propionate	52	33
Rybelsus	Semaglutide	52	15
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	51	13
Clopidogrel	Clopidogrel Bisulfate	50	19
Synthroid	Levothyroxine Sodium	49	19
Glipizide Er	Glipizide	48	15
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	48	15
Memantine Hcl	Memantine Hcl	48	13
Xarelto	Rivaroxaban	48	16
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	45	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	44	16
Valsartan	Valsartan	44	18
Warfarin Sodium	Warfarin Sodium	43	17
Clonazepam	Clonazepam	42	14
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	42	15
Diazepam	Diazepam	41	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	40	14
Trazodone Hcl	Trazodone Hcl	40	15
Fenofibrate	Fenofibrate	39	13
Glimepiride	Glimepiride	39	11
Metformin Hcl Er	Metformin Hcl	38	18
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	38	suppressed
Ozempic	Semaglutide	37	suppressed
Fentanyl	Fentanyl	35	suppressed
Famotidine	Famotidine	34	16
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	33	suppressed
Naltrexone Hcl	Naltrexone Hcl	33	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	33	12
Temazepam	Temazepam	31	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	31	14
Terazosin Hcl	Terazosin Hcl	30	suppressed
Hydralazine Hcl	Hydralazine Hcl	29	16
Januvia	Sitagliptin Phosphate	29	suppressed
Chlorthalidone	Chlorthalidone	28	suppressed
Nifedipine Er	Nifedipine	27	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	26	suppressed
Methylprednisolone	Methylprednisolone	26	26
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	25	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	25	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	25	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	25	suppressed
Oxycodone Hcl	Oxycodone Hcl	25	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	25	suppressed
Enalapril Maleate	Enalapril Maleate	24	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	24	suppressed
Paroxetine Hcl	Paroxetine Hcl	24	suppressed
Spironolactone	Spironolactone	24	12
Valacyclovir	Valacyclovir Hcl	24	12
Alendronate Sodium	Alendronate Sodium	23	suppressed
Azithromycin	Azithromycin	23	22
Benazepril Hcl	Benazepril Hcl	23	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	23	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	23	suppressed
Breo Ellipta	Fluticasone/Vilanterol	22	suppressed
Cefdinir	Cefdinir	22	22
Toujeo Max Solostar	Insulin Glargine,hum.Rec.Anlog	22	suppressed
Diclofenac Sodium	Diclofenac Sodium	20	suppressed
Farxiga	Dapagliflozin Propanediol	20	suppressed
Testosterone Cypionate	Testosterone Cypionate	20	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	19	suppressed
Clonidine Hcl	Clonidine Hcl	19	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	19	15
Topiramate	Topiramate	19	suppressed
Bumetanide	Bumetanide	18	suppressed
Creon	Lipase/Protease/Amylase	18	suppressed
Telmisartan	Telmisartan	18	suppressed
Citalopram Hbr	Citalopram Hydrobromide	17	suppressed
Doxepin Hcl	Doxepin Hcl	17	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	17	suppressed
Mirtazapine	Mirtazapine	17	suppressed
Ondansetron Odt	Ondansetron	17	suppressed
Ropinirole Hcl	Ropinirole Hcl	17	suppressed
Amlodipine-Olmesartan	Amlodipine Bes/Olmesartan Med	16	suppressed
Modafinil	Modafinil	16	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	15	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	15	suppressed
Novolog Flexpen	Insulin Aspart	15	suppressed
Novolog Mix 70-30 Flexpen	Insulin Aspart Prot/Insuln Asp	15	suppressed
Tizanidine Hcl	Tizanidine Hcl	15	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	15	suppressed
Hydrocortisone	Hydrocortisone	14	11
Methylphenidate Hcl	Methylphenidate Hcl	14	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	14	suppressed
Tadalafil	Tadalafil	14	suppressed
Terbinafine Hcl	Terbinafine Hcl	14	suppressed
Buspirone Hcl	Buspirone Hcl	13	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	13	12
Glipizide-Metformin	Glipizide/Metformin Hcl	13	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	13	suppressed
Baclofen	Baclofen	12	suppressed
Budesonide Dr	Budesonide	12	suppressed
Dutasteride	Dutasteride	12	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	12	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	11	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	11	suppressed
Bupropion Hcl Sr	Bupropion Hcl	11	suppressed
Colchicine	Colchicine	11	suppressed
Lidocaine	Lidocaine	11	suppressed
Myrbetriq	Mirabegron	11	suppressed
Novolin 70-30 Flexpen	Insulin Nph Hum/Reg Insulin Hm	11	suppressed
Ramipril	Ramipril	11	suppressed
Spiriva Handihaler	Tiotropium Bromide	11	suppressed
Verapamil Hcl	Verapamil 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