Healthcare provider profile · identity verified

Alexander Cook, MD

Family Practice · EVANSTON, IL · NPI 1619461324

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	713	202
Amlodipine Besylate	Amlodipine Besylate	432	117
Rosuvastatin Calcium	Rosuvastatin Calcium	354	102
Levothyroxine Sodium	Levothyroxine Sodium	352	92
Hydrochlorothiazide	Hydrochlorothiazide	315	83
Lisinopril	Lisinopril	314	91
Losartan Potassium	Losartan Potassium	305	90
Simvastatin	Simvastatin	233	60
Furosemide	Furosemide	183	53
Metoprolol Succinate	Metoprolol Succinate	182	48
Omeprazole	Omeprazole	180	54
Pantoprazole Sodium	Pantoprazole Sodium	179	63
Metformin Hcl	Metformin Hcl	177	55
Escitalopram Oxalate	Escitalopram Oxalate	146	45
Gabapentin	Gabapentin	144	43
Allopurinol	Allopurinol	138	34
Eliquis	Apixaban	136	33
Pravastatin Sodium	Pravastatin Sodium	136	35
Ozempic	Semaglutide	125	21
Lorazepam	Lorazepam	111	22
Tamsulosin Hcl	Tamsulosin Hcl	108	33
Trazodone Hcl	Trazodone Hcl	105	27
Metoprolol Tartrate	Metoprolol Tartrate	100	27
Potassium Chloride	Potassium Chloride	99	28
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	95	28
Ezetimibe	Ezetimibe	92	28
Sertraline Hcl	Sertraline Hcl	88	15
Tramadol Hcl	Tramadol Hcl	86	25
Zolpidem Tartrate	Zolpidem Tartrate	80	13
Alendronate Sodium	Alendronate Sodium	74	27
Warfarin Sodium	Warfarin Sodium	71	14
Bupropion Xl	Bupropion Hcl	69	14
Xarelto	Rivaroxaban	68	12
Clopidogrel	Clopidogrel Bisulfate	65	17
Duloxetine Hcl	Duloxetine Hcl	65	17
Oxybutynin Chloride Er	Oxybutynin Chloride	65	23
Doxazosin Mesylate	Doxazosin Mesylate	63	13
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	60	21
Albuterol Sulfate Hfa	Albuterol Sulfate	59	31
Carvedilol	Carvedilol	59	16
Synthroid	Levothyroxine Sodium	56	11
Clonazepam	Clonazepam	55	16
Jardiance	Empagliflozin	55	14
Glipizide Er	Glipizide	51	14
Mirtazapine	Mirtazapine	51	14
Metformin Hcl Er	Metformin Hcl	50	15
Spironolactone	Spironolactone	47	14
Olmesartan Medoxomil	Olmesartan Medoxomil	46	17
Enalapril Maleate	Enalapril Maleate	44	11
Famotidine	Famotidine	44	15
Quetiapine Fumarate	Quetiapine Fumarate	44	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	43	suppressed
Donepezil Hcl	Donepezil Hcl	41	suppressed
Finasteride	Finasteride	40	suppressed
Mounjaro	Tirzepatide	40	suppressed
Prednisone	Prednisone	40	28
Propranolol Hcl Er	Propranolol Hcl	40	13
Glipizide	Glipizide	39	12
Oxycodone Hcl	Oxycodone Hcl	37	11
Fluoxetine Hcl	Fluoxetine Hcl	35	suppressed
Citalopram Hbr	Citalopram Hydrobromide	34	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	34	16
Montelukast Sodium	Montelukast Sodium	34	12
Meloxicam	Meloxicam	33	12
Valsartan	Valsartan	33	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	32	12
Myrbetriq	Mirabegron	32	suppressed
Terazosin Hcl	Terazosin Hcl	32	suppressed
Alprazolam	Alprazolam	31	13
Celecoxib	Celecoxib	31	suppressed
Tizanidine Hcl	Tizanidine Hcl	31	suppressed
Trulicity	Dulaglutide	31	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	31	suppressed
Aripiprazole	Aripiprazole	30	suppressed
Atenolol	Atenolol	30	suppressed
Fluticasone Propionate	Fluticasone Propionate	30	14
Irbesartan	Irbesartan	30	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	29	15
Triamcinolone Acetonide	Triamcinolone Acetonide	29	24
Azithromycin	Azithromycin	28	25
Naproxen	Naproxen	28	18
Solifenacin Succinate	Solifenacin Succinate	27	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	27	suppressed
Glimepiride	Glimepiride	26	11
Pioglitazone Hcl	Pioglitazone Hcl	26	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	25	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	24	21
Diclofenac Sodium	Diclofenac Sodium	24	14
Esomeprazole Magnesium	Esomeprazole Magnesium	24	suppressed
Januvia	Sitagliptin Phosphate	24	suppressed
Levetiracetam	Levetiracetam	24	suppressed
Paroxetine Hcl	Paroxetine Hcl	23	suppressed
Propranolol Hcl	Propranolol Hcl	23	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	23	19
Buspirone Hcl	Buspirone Hcl	22	suppressed
Fenofibrate	Fenofibrate	22	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	22	suppressed
Clonidine Hcl	Clonidine Hcl	21	suppressed
Baclofen	Baclofen	20	suppressed
Farxiga	Dapagliflozin Propanediol	20	suppressed
Fluconazole	Fluconazole	19	15
Lovastatin	Lovastatin	19	suppressed
Ondansetron Odt	Ondansetron	19	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	19	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	18	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	18	suppressed
Bupropion Hcl Sr	Bupropion Hcl	18	suppressed
Benazepril Hcl	Benazepril Hcl	17	suppressed
Midodrine Hcl	Midodrine Hcl	17	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	16	suppressed
Azelastine Hcl	Azelastine Hcl	16	suppressed
Diltiazem 24hr Er (La)	Diltiazem Hcl	16	suppressed
Divalproex Sodium	Divalproex Sodium	16	suppressed
Topiramate	Topiramate	16	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	15	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	15	suppressed
Bumetanide	Bumetanide	15	suppressed
Meclizine Hcl	Meclizine Hcl	15	12
Sucralfate	Sucralfate	15	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	14	suppressed
Colchicine	Colchicine	14	suppressed
Morphine Sulfate Er	Morphine Sulfate	14	suppressed
Tenivac	Tetanus-Diphtheria Toxoids/Pf	14	14
Venlafaxine Hcl	Venlafaxine Hcl	14	suppressed
Benztropine Mesylate	Benztropine Mesylate	13	suppressed
Clobetasol Propionate	Clobetasol Propionate	13	suppressed
Clotrimazole	Clotrimazole	13	suppressed
Desipramine Hcl	Desipramine Hcl	13	suppressed
Diazepam	Diazepam	13	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	13	suppressed
Naltrexone Hcl	Naltrexone Hcl	13	suppressed
Nifedipine Er	Nifedipine	13	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	13	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	13	suppressed
Alprazolam Er	Alprazolam	12	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	12	suppressed
Hydrocortisone	Hydrocortisone	12	suppressed
Lansoprazole	Lansoprazole	12	suppressed
Cephalexin	Cephalexin	11	suppressed
Folic Acid	Folic Acid	11	suppressed
Ipratropium Bromide	Ipratropium Bromide	11	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	11	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Nitroglycerin	Nitroglycerin	11	suppressed
Prazosin Hcl	Prazosin Hcl	11	suppressed
Risperidone	Risperidone	11	suppressed
Rybelsus	Semaglutide	11	suppressed
Valacyclovir	Valacyclovir 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