Healthcare provider profile · identity verified

David J. Fox, M.D.

Internal Medicine · CHICAGO, IL · NPI 1760610067

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	817	239
Amlodipine Besylate	Amlodipine Besylate	620	184
Losartan Potassium	Losartan Potassium	291	86
Levothyroxine Sodium	Levothyroxine Sodium	283	75
Lisinopril	Lisinopril	211	63
Omeprazole	Omeprazole	200	59
Hydrochlorothiazide	Hydrochlorothiazide	173	59
Tamsulosin Hcl	Tamsulosin Hcl	161	48
Metformin Hcl Er	Metformin Hcl	152	46
Rosuvastatin Calcium	Rosuvastatin Calcium	140	45
Olmesartan Medoxomil	Olmesartan Medoxomil	138	39
Alprazolam	Alprazolam	137	30
Metoprolol Succinate	Metoprolol Succinate	130	40
Metformin Hcl	Metformin Hcl	120	36
Gabapentin	Gabapentin	107	33
Pravastatin Sodium	Pravastatin Sodium	104	32
Zolpidem Tartrate	Zolpidem Tartrate	92	28
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	91	18
Jardiance	Empagliflozin	86	20
Escitalopram Oxalate	Escitalopram Oxalate	81	25
Ozempic	Semaglutide	79	17
Simvastatin	Simvastatin	79	23
Duloxetine Hcl	Duloxetine Hcl	78	14
Chlorthalidone	Chlorthalidone	77	21
Eliquis	Apixaban	77	22
Pantoprazole Sodium	Pantoprazole Sodium	76	21
Allopurinol	Allopurinol	73	22
Carvedilol	Carvedilol	73	22
Fluticasone Propionate	Fluticasone Propionate	71	25
Mounjaro	Tirzepatide	71	13
Clonazepam	Clonazepam	69	11
Pregabalin	Pregabalin	67	14
Potassium Chloride	Potassium Chloride	63	18
Warfarin Sodium	Warfarin Sodium	62	13
Trazodone Hcl	Trazodone Hcl	60	14
Furosemide	Furosemide	57	18
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	57	suppressed
Tramadol Hcl	Tramadol Hcl	55	16
Bupropion Xl	Bupropion Hcl	50	11
Ezetimibe	Ezetimibe	46	14
Spironolactone	Spironolactone	44	suppressed
Xarelto	Rivaroxaban	44	14
Meloxicam	Meloxicam	39	11
Metoprolol Tartrate	Metoprolol Tartrate	39	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	38	suppressed
Prednisone	Prednisone	38	12
Valacyclovir	Valacyclovir Hcl	38	16
Amitriptyline Hcl	Amitriptyline Hcl	37	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	36	16
Famotidine	Famotidine	36	suppressed
Finasteride	Finasteride	35	suppressed
Trulicity	Dulaglutide	35	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	34	12
Topiramate	Topiramate	34	17
Azelastine Hcl	Azelastine Hcl	32	13
Glimepiride	Glimepiride	32	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	31	suppressed
Oxycodone Hcl	Oxycodone Hcl	31	suppressed
Celecoxib	Celecoxib	30	suppressed
Sertraline Hcl	Sertraline Hcl	29	suppressed
Synthroid	Levothyroxine Sodium	29	suppressed
Ramipril	Ramipril	28	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	27	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	27	suppressed
Nifedipine Er	Nifedipine	25	suppressed
Propranolol Hcl Er	Propranolol Hcl	25	suppressed
Irbesartan	Irbesartan	22	suppressed
Bumetanide	Bumetanide	21	suppressed
Donepezil Hcl	Donepezil Hcl	21	suppressed
Alendronate Sodium	Alendronate Sodium	20	suppressed
Clopidogrel	Clopidogrel Bisulfate	20	suppressed
Lorazepam	Lorazepam	20	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	19	suppressed
Montelukast Sodium	Montelukast Sodium	19	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	19	suppressed
Entresto	Sacubitril/Valsartan	18	suppressed
Ondansetron Odt	Ondansetron	18	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	18	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	18	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	17	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	16	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	16	suppressed
Bydureon Bcise	Exenatide Microspheres	16	suppressed
Dutasteride	Dutasteride	16	suppressed
Glipizide Er	Glipizide	16	suppressed
Indapamide	Indapamide	16	suppressed
Labetalol Hcl	Labetalol Hcl	16	suppressed
Naproxen	Naproxen	16	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	16	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	16	16
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	16	suppressed
Valsartan	Valsartan	16	suppressed
Baclofen	Baclofen	15	suppressed
Diazepam	Diazepam	15	suppressed
Estradiol	Estradiol	15	suppressed
Telmisartan	Telmisartan	15	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	14	suppressed
Fenofibrate	Fenofibrate	14	suppressed
Ibuprofen	Ibuprofen	14	suppressed
Klor-Con M20	Potassium Chloride	14	suppressed
Memantine Hcl Er	Memantine Hcl	14	suppressed
Quetiapine Fumarate Er	Quetiapine Fumarate	14	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	14	suppressed
Colchicine	Colchicine	13	suppressed
Januvia	Sitagliptin Phosphate	13	suppressed
Atenolol	Atenolol	12	suppressed
Bupropion Hcl Sr	Bupropion Hcl	12	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	12	suppressed
Farxiga	Dapagliflozin Propanediol	12	suppressed
Levetiracetam	Levetiracetam	12	suppressed
Paroxetine Hcl	Paroxetine Hcl	12	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	11	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	11	suppressed
Breo Ellipta	Fluticasone/Vilanterol	11	suppressed
Citalopram Hbr	Citalopram Hydrobromide	11	suppressed
Eplerenone	Eplerenone	11	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	11	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	11	suppressed
Lisdexamfetamine Dimesylate	Lisdexamfetamine Dimesylate	11	suppressed
Mirtazapine	Mirtazapine	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