Healthcare provider profile · identity verified

Stuart S Ferber, M.D.

Internal Medicine · BUFFALO GROVE, IL · NPI 1952389413

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	1112	301
Amlodipine Besylate	Amlodipine Besylate	713	181
Rosuvastatin Calcium	Rosuvastatin Calcium	704	219
Levothyroxine Sodium	Levothyroxine Sodium	518	130
Lisinopril	Lisinopril	518	142
Losartan Potassium	Losartan Potassium	451	124
Metoprolol Succinate	Metoprolol Succinate	416	117
Simvastatin	Simvastatin	357	101
Metformin Hcl	Metformin Hcl	352	99
Pantoprazole Sodium	Pantoprazole Sodium	319	92
Pravastatin Sodium	Pravastatin Sodium	294	76
Omeprazole	Omeprazole	265	83
Alprazolam	Alprazolam	241	85
Escitalopram Oxalate	Escitalopram Oxalate	228	65
Hydrochlorothiazide	Hydrochlorothiazide	226	67
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	221	58
Allopurinol	Allopurinol	204	56
Tamsulosin Hcl	Tamsulosin Hcl	195	57
Gabapentin	Gabapentin	178	56
Famotidine	Famotidine	177	52
Metoprolol Tartrate	Metoprolol Tartrate	173	45
Sertraline Hcl	Sertraline Hcl	163	43
Glimepiride	Glimepiride	160	47
Furosemide	Furosemide	159	39
Bupropion Xl	Bupropion Hcl	150	29
Trazodone Hcl	Trazodone Hcl	144	49
Ezetimibe	Ezetimibe	135	47
Meloxicam	Meloxicam	132	55
Montelukast Sodium	Montelukast Sodium	118	34
Eliquis	Apixaban	116	29
Finasteride	Finasteride	116	37
Lorazepam	Lorazepam	115	35
Ibandronate Sodium	Ibandronate Sodium	103	31
Tramadol Hcl	Tramadol Hcl	103	33
Metformin Hcl Er	Metformin Hcl	102	32
Duloxetine Hcl	Duloxetine Hcl	95	27
Zolpidem Tartrate	Zolpidem Tartrate	95	30
Irbesartan	Irbesartan	94	28
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	91	33
Jardiance	Empagliflozin	89	19
Ozempic	Semaglutide	83	20
Atenolol	Atenolol	81	23
Mirtazapine	Mirtazapine	80	13
Pregabalin	Pregabalin	78	12
Oxybutynin Chloride Er	Oxybutynin Chloride	75	18
Potassium Chloride	Potassium Chloride	70	20
Prednisone	Prednisone	70	35
Albuterol Sulfate Hfa	Albuterol Sulfate	69	32
Carvedilol	Carvedilol	69	23
Synthroid	Levothyroxine Sodium	68	19
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	67	21
Alfuzosin Hcl Er	Alfuzosin Hcl	64	19
Clopidogrel	Clopidogrel Bisulfate	64	15
Quetiapine Fumarate	Quetiapine Fumarate	64	suppressed
Fluticasone Propionate	Fluticasone Propionate	62	26
Clonazepam	Clonazepam	61	18
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	60	16
Lovastatin	Lovastatin	59	16
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	58	19
Donepezil Hcl	Donepezil Hcl	57	13
Trulicity	Dulaglutide	56	11
Spironolactone	Spironolactone	55	17
Venlafaxine Hcl Er	Venlafaxine Hcl	54	13
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	53	15
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	53	16
Tizanidine Hcl	Tizanidine Hcl	53	27
Fluoxetine Hcl	Fluoxetine Hcl	51	14
Esomeprazole Magnesium	Esomeprazole Magnesium	47	14
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	46	suppressed
Celecoxib	Celecoxib	44	18
Warfarin Sodium	Warfarin Sodium	44	14
Memantine Hcl	Memantine Hcl	40	12
Ketoconazole	Ketoconazole	38	16
Ramipril	Ramipril	38	11
Azelastine Hcl	Azelastine Hcl	37	13
Citalopram Hbr	Citalopram Hydrobromide	37	suppressed
Methylprednisolone	Methylprednisolone	37	36
Amitriptyline Hcl	Amitriptyline Hcl	34	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	34	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	34	11
Sumatriptan Succinate	Sumatriptan Succinate	34	suppressed
Klor-Con M20	Potassium Chloride	33	suppressed
Mounjaro	Tirzepatide	32	suppressed
Temazepam	Temazepam	32	suppressed
Xarelto	Rivaroxaban	32	suppressed
Propranolol Hcl	Propranolol Hcl	31	11
Triamcinolone Acetonide	Triamcinolone Acetonide	31	21
Amoxicillin	Amoxicillin	30	23
Lamotrigine	Lamotrigine	30	suppressed
Ondansetron Hcl	Ondansetron Hcl	30	12
Ondansetron Odt	Ondansetron	30	11
Ipratropium Bromide	Ipratropium Bromide	29	suppressed
Valsartan	Valsartan	29	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	28	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	27	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	27	27
Hydrocortisone	Hydrocortisone	26	16
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	26	14
Valacyclovir	Valacyclovir Hcl	26	16
Naproxen	Naproxen	25	suppressed
Ropinirole Hcl	Ropinirole Hcl	25	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	25	suppressed
Azithromycin	Azithromycin	24	21
Benazepril Hcl	Benazepril Hcl	23	suppressed
Buspirone Hcl	Buspirone Hcl	23	suppressed
Diclofenac Sodium	Diclofenac Sodium	23	suppressed
Glipizide	Glipizide	23	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	23	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	22	11
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	21	suppressed
Bumetanide	Bumetanide	21	suppressed
Cephalexin	Cephalexin	21	17
Hydralazine Hcl	Hydralazine Hcl	21	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	21	suppressed
Januvia	Sitagliptin Phosphate	21	suppressed
Terazosin Hcl	Terazosin Hcl	21	suppressed
Wegovy	Semaglutide	21	suppressed
Alendronate Sodium	Alendronate Sodium	20	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	20	suppressed
Enalapril Maleate	Enalapril Maleate	20	suppressed
Fentanyl	Fentanyl	20	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	19	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	19	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	18	suppressed
Breo Ellipta	Fluticasone/Vilanterol	17	suppressed
Cefadroxil	Cefadroxil	17	17
Febuxostat	Febuxostat	17	suppressed
Ibuprofen	Ibuprofen	17	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	17	suppressed
Myrbetriq	Mirabegron	17	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	17	suppressed
Propranolol Hcl Er	Propranolol Hcl	16	suppressed
Anastrozole	Anastrozole	15	suppressed
Baclofen	Baclofen	15	suppressed
Benazepril-Hydrochlorothiazide	Benazepril/Hydrochlorothiazide	15	suppressed
Clonidine Hcl	Clonidine Hcl	15	suppressed
Diazepam	Diazepam	15	12
Ezetimibe-Simvastatin	Ezetimibe/Simvastatin	15	suppressed
Lansoprazole	Lansoprazole	15	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	14	suppressed
Diltiazem 24hr Er (Xr)	Diltiazem Hcl	14	suppressed
Methenamine Hippurate	Methenamine Hippurate	14	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	14	suppressed
Paroxetine Hcl	Paroxetine Hcl	14	suppressed
Repaglinide	Repaglinide	14	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	14	suppressed
Clonidine	Clonidine	13	suppressed
Nifedipine Er	Nifedipine	13	suppressed
Chlorthalidone	Chlorthalidone	12	suppressed
Cozaar	Losartan Potassium	12	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	12	suppressed
Fenofibrate	Fenofibrate	12	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	12	suppressed
Labetalol Hcl	Labetalol Hcl	12	suppressed
Lidocaine	Lidocaine	12	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	12	suppressed
Raloxifene Hcl	Raloxifene Hcl	12	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	12	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	11	suppressed
Crestor	Rosuvastatin Calcium	11	suppressed
Eletriptan Hbr	Eletriptan Hydrobromide	11	suppressed
Farxiga	Dapagliflozin Propanediol	11	suppressed
Meclizine Hcl	Meclizine Hcl	11	suppressed
Nabumetone	Nabumetone	11	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	11	suppressed
Rivastigmine	Rivastigmine	11	suppressed
Verapamil Er	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