Healthcare provider profile · identity verified

Michael Mcdonnell, M.D.

Internal Medicine · CHICAGO, IL · NPI 1467436972

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	839	237
Metoprolol Succinate	Metoprolol Succinate	529	150
Lisinopril	Lisinopril	494	140
Metformin Hcl	Metformin Hcl	448	142
Amlodipine Besylate	Amlodipine Besylate	430	125
Levothyroxine Sodium	Levothyroxine Sodium	391	96
Furosemide	Furosemide	333	101
Pantoprazole Sodium	Pantoprazole Sodium	278	83
Losartan Potassium	Losartan Potassium	273	77
Hydrochlorothiazide	Hydrochlorothiazide	260	79
Tamsulosin Hcl	Tamsulosin Hcl	213	63
Simvastatin	Simvastatin	201	63
Gabapentin	Gabapentin	162	51
Sertraline Hcl	Sertraline Hcl	158	41
Allopurinol	Allopurinol	145	45
Rosuvastatin Calcium	Rosuvastatin Calcium	143	43
Eliquis	Apixaban	142	43
Potassium Chloride	Potassium Chloride	135	33
Albuterol Sulfate Hfa	Albuterol Sulfate	132	47
Metoprolol Tartrate	Metoprolol Tartrate	128	33
Alprazolam	Alprazolam	121	32
Tramadol Hcl	Tramadol Hcl	121	28
Omeprazole	Omeprazole	117	31
Memantine Hcl	Memantine Hcl	106	24
Meloxicam	Meloxicam	104	29
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	102	28
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	100	23
Escitalopram Oxalate	Escitalopram Oxalate	94	22
Trazodone Hcl	Trazodone Hcl	93	22
Lorazepam	Lorazepam	89	25
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	84	25
Clopidogrel	Clopidogrel Bisulfate	83	30
Glipizide	Glipizide	81	26
Ozempic	Semaglutide	75	14
Donepezil Hcl	Donepezil Hcl	73	21
Pravastatin Sodium	Pravastatin Sodium	73	21
Atenolol	Atenolol	71	20
Montelukast Sodium	Montelukast Sodium	71	19
Carvedilol	Carvedilol	70	17
Enalapril Maleate	Enalapril Maleate	65	17
Zolpidem Tartrate	Zolpidem Tartrate	65	15
Finasteride	Finasteride	62	19
Nifedipine Er	Nifedipine	62	17
Fluticasone Propionate	Fluticasone Propionate	61	29
Famotidine	Famotidine	58	14
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	52	24
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	52	14
Xarelto	Rivaroxaban	51	14
Jardiance	Empagliflozin	50	21
Irbesartan	Irbesartan	49	suppressed
Spironolactone	Spironolactone	49	11
Januvia	Sitagliptin Phosphate	47	15
Alendronate Sodium	Alendronate Sodium	46	13
Diclofenac Sodium	Diclofenac Sodium	46	25
Glipizide Er	Glipizide	46	16
Celecoxib	Celecoxib	44	13
Warfarin Sodium	Warfarin Sodium	43	suppressed
Citalopram Hbr	Citalopram Hydrobromide	42	suppressed
Divalproex Sodium	Divalproex Sodium	42	suppressed
Fentanyl	Fentanyl	41	suppressed
Mirtazapine	Mirtazapine	40	11
Trulicity	Dulaglutide	40	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	39	13
Paroxetine Hcl	Paroxetine Hcl	39	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	39	suppressed
Ezetimibe	Ezetimibe	38	suppressed
Meclizine Hcl	Meclizine Hcl	35	16
Clonazepam	Clonazepam	34	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	34	suppressed
Valsartan	Valsartan	34	suppressed
Breo Ellipta	Fluticasone/Vilanterol	33	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	32	suppressed
Carbamazepine	Carbamazepine	32	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	32	suppressed
Ibuprofen	Ibuprofen	31	12
Pregabalin	Pregabalin	31	11
Azithromycin	Azithromycin	30	29
Carbidopa-Levodopa	Carbidopa/Levodopa	30	suppressed
Lovastatin	Lovastatin	29	11
Oxybutynin Chloride	Oxybutynin Chloride	29	suppressed
Risperidone	Risperidone	28	suppressed
Digoxin	Digoxin	27	suppressed
Glimepiride	Glimepiride	27	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	27	25
Amitriptyline Hcl	Amitriptyline Hcl	26	suppressed
Fenofibrate	Fenofibrate	26	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	26	suppressed
Metformin Hcl Er	Metformin Hcl	26	11
Hydralazine Hcl	Hydralazine Hcl	25	suppressed
Ramipril	Ramipril	25	suppressed
Naproxen	Naproxen	24	suppressed
Prednisone	Prednisone	24	17
Triamcinolone Acetonide	Triamcinolone Acetonide	24	13
Benazepril Hcl	Benazepril Hcl	23	suppressed
Gemfibrozil	Gemfibrozil	23	suppressed
Hydrocortisone	Hydrocortisone	23	12
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	23	suppressed
Ventolin Hfa	Albuterol Sulfate	23	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	19
Methylprednisolone	Methylprednisolone	21	19
Nebivolol Hcl	Nebivolol Hcl	21	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	20	suppressed
Baclofen	Baclofen	20	suppressed
Bupropion Hcl Sr	Bupropion Hcl	20	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	20	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	20	suppressed
Synthroid	Levothyroxine Sodium	20	suppressed
Brilinta	Ticagrelor	19	suppressed
Farxiga	Dapagliflozin Propanediol	19	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	19	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	19	suppressed
Bumetanide	Bumetanide	18	suppressed
Chlorthalidone	Chlorthalidone	18	suppressed
Diazepam	Diazepam	18	suppressed
Klor-Con M20	Potassium Chloride	18	suppressed
Latanoprost	Latanoprost	18	suppressed
Torsemide	Torsemide	18	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	18	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	17	suppressed
Cholestyramine	Cholestyramine (With Sugar)	17	suppressed
Duloxetine Hcl	Duloxetine Hcl	17	suppressed
Midodrine Hcl	Midodrine Hcl	17	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	17	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	16	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	16	suppressed
Tradjenta	Linagliptin	16	suppressed
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	16	suppressed
Metolazone	Metolazone	15	suppressed
Myrbetriq	Mirabegron	15	suppressed
Spiriva Respimat	Tiotropium Bromide	15	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	14	suppressed
Primidone	Primidone	14	suppressed
Telmisartan	Telmisartan	14	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	14	suppressed
Azelastine Hcl	Azelastine Hcl	13	suppressed
Buspirone Hcl	Buspirone Hcl	13	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	13	suppressed
Indapamide	Indapamide	13	suppressed
Novolog Flexpen	Insulin Aspart	13	suppressed
Ondansetron Hcl	Ondansetron Hcl	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	12	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	12	suppressed
Cephalexin	Cephalexin	12	suppressed
Entresto	Sacubitril/Valsartan	12	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	12	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	12	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Fosinopril Sodium	Fosinopril Sodium	11	suppressed
Humalog Kwikpen U-100	Insulin Lispro	11	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	11	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	11	suppressed
Zonisamide	Zonisamide	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