Healthcare provider profile · identity verified

Michael E Carroll, MD

Internal Medicine · PORTLAND, OR · NPI 1194752857

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	1099	306
Amlodipine Besylate	Amlodipine Besylate	596	173
Levothyroxine Sodium	Levothyroxine Sodium	467	117
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	435	75
Lisinopril	Lisinopril	369	110
Omeprazole	Omeprazole	341	104
Losartan Potassium	Losartan Potassium	323	90
Eliquis	Apixaban	315	75
Trazodone Hcl	Trazodone Hcl	309	68
Metoprolol Succinate	Metoprolol Succinate	271	91
Metformin Hcl	Metformin Hcl	264	68
Oxycodone Hcl	Oxycodone Hcl	248	47
Gabapentin	Gabapentin	237	62
Tamsulosin Hcl	Tamsulosin Hcl	234	62
Hydrochlorothiazide	Hydrochlorothiazide	216	63
Potassium Chloride	Potassium Chloride	208	58
Pravastatin Sodium	Pravastatin Sodium	206	52
Albuterol Sulfate Hfa	Albuterol Sulfate	199	69
Alendronate Sodium	Alendronate Sodium	192	52
Zolpidem Tartrate	Zolpidem Tartrate	191	48
Simvastatin	Simvastatin	178	48
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	175	52
Sertraline Hcl	Sertraline Hcl	174	42
Furosemide	Furosemide	173	50
Metformin Hcl Er	Metformin Hcl	159	44
Rosuvastatin Calcium	Rosuvastatin Calcium	150	43
Glipizide Er	Glipizide	144	40
Metoprolol Tartrate	Metoprolol Tartrate	135	34
Prednisone	Prednisone	130	62
Allopurinol	Allopurinol	128	31
Alprazolam	Alprazolam	125	30
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	124	37
Clonazepam	Clonazepam	116	14
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	116	18
Ozempic	Semaglutide	111	23
Duloxetine Hcl	Duloxetine Hcl	109	26
Pantoprazole Sodium	Pantoprazole Sodium	109	34
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	105	30
Escitalopram Oxalate	Escitalopram Oxalate	102	30
Lovastatin	Lovastatin	101	33
Atenolol	Atenolol	99	27
Donepezil Hcl	Donepezil Hcl	97	17
Finasteride	Finasteride	96	21
Mirtazapine	Mirtazapine	96	23
Warfarin Sodium	Warfarin Sodium	96	26
Lorazepam	Lorazepam	91	16
Irbesartan	Irbesartan	86	32
Tizanidine Hcl	Tizanidine Hcl	81	25
Glipizide	Glipizide	80	19
Citalopram Hbr	Citalopram Hydrobromide	76	19
Venlafaxine Hcl Er	Venlafaxine Hcl	75	18
Meloxicam	Meloxicam	69	26
Fluticasone Propionate	Fluticasone Propionate	66	27
Tramadol Hcl	Tramadol Hcl	65	20
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	63	11
Doxazosin Mesylate	Doxazosin Mesylate	62	17
Ropinirole Hcl	Ropinirole Hcl	62	15
Triamcinolone Acetonide	Triamcinolone Acetonide	58	33
Hydromorphone Hcl	Hydromorphone Hcl	57	suppressed
Bupropion Xl	Bupropion Hcl	55	14
Acyclovir	Acyclovir	54	17
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	54	suppressed
Montelukast Sodium	Montelukast Sodium	53	15
Spironolactone	Spironolactone	52	16
Cephalexin	Cephalexin	51	41
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	51	16
Quetiapine Fumarate	Quetiapine Fumarate	50	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	48	suppressed
Carvedilol	Carvedilol	46	14
Fluoxetine Hcl	Fluoxetine Hcl	46	13
Pregabalin	Pregabalin	45	11
Temazepam	Temazepam	45	suppressed
Ondansetron Odt	Ondansetron	44	28
Mounjaro	Tirzepatide	43	suppressed
Estradiol	Estradiol	39	13
Propranolol Hcl	Propranolol Hcl	38	12
Xarelto	Rivaroxaban	38	suppressed
Clopidogrel	Clopidogrel Bisulfate	37	14
Famotidine	Famotidine	36	12
Felodipine Er	Felodipine	36	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	36	14
Pioglitazone Hcl	Pioglitazone Hcl	36	suppressed
Torsemide	Torsemide	36	suppressed
Methadone Hcl	Methadone Hcl	35	suppressed
Clonidine Hcl	Clonidine Hcl	34	suppressed
Humalog Kwikpen U-100	Insulin Lispro	33	suppressed
Aripiprazole	Aripiprazole	32	suppressed
Ibuprofen	Ibuprofen	32	15
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	29	suppressed
Morphine Sulfate Er	Morphine Sulfate	29	suppressed
Myrbetriq	Mirabegron	29	11
Trulicity	Dulaglutide	28	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	27	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	27	23
Lantus	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Morphine Sulfate	Morphine Sulfate	27	suppressed
Buspirone Hcl	Buspirone Hcl	26	suppressed
Eszopiclone	Eszopiclone	26	suppressed
Lamotrigine	Lamotrigine	26	suppressed
Nitroglycerin	Nitroglycerin	26	24
Sumatriptan Succinate	Sumatriptan Succinate	26	suppressed
Ketoconazole	Ketoconazole	25	13
Lansoprazole	Lansoprazole	25	suppressed
Methocarbamol	Methocarbamol	25	suppressed
Amiodarone Hcl	Amiodarone Hcl	24	suppressed
Diclofenac Sodium	Diclofenac Sodium	24	suppressed
Olanzapine	Olanzapine	24	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	24	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	23	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	21	suppressed
Ezetimibe	Ezetimibe	21	suppressed
Terazosin Hcl	Terazosin Hcl	21	suppressed
Bupropion Hcl Sr	Bupropion Hcl	20	suppressed
Arnuity Ellipta	Fluticasone Furoate	19	suppressed
Benazepril Hcl	Benazepril Hcl	19	suppressed
Enalapril Maleate	Enalapril Maleate	19	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	19	suppressed
Paroxetine Hcl	Paroxetine Hcl	19	suppressed
Tadalafil	Tadalafil	19	suppressed
Fluconazole	Fluconazole	18	15
Glimepiride	Glimepiride	18	suppressed
Ipratropium Bromide	Ipratropium Bromide	18	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	18	suppressed
Levetiracetam	Levetiracetam	18	suppressed
Methylprednisolone	Methylprednisolone	18	11
Oxybutynin Chloride	Oxybutynin Chloride	18	suppressed
Synthroid	Levothyroxine Sodium	18	suppressed
Valacyclovir	Valacyclovir Hcl	18	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	17	suppressed
Celecoxib	Celecoxib	17	suppressed
Chlorthalidone	Chlorthalidone	17	suppressed
Colchicine	Colchicine	17	suppressed
Nifedipine Er	Nifedipine	17	suppressed
Meclizine Hcl	Meclizine Hcl	16	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	16	suppressed
Trandolapril	Trandolapril	16	suppressed
Diazepam	Diazepam	15	suppressed
Farxiga	Dapagliflozin Propanediol	15	suppressed
Jardiance	Empagliflozin	15	suppressed
Labetalol Hcl	Labetalol Hcl	15	suppressed
Lithium Carbonate	Lithium Carbonate	15	suppressed
Promethazine Hcl	Promethazine Hcl	15	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	15	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	15	suppressed
Valsartan	Valsartan	15	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	14	suppressed
Fentanyl	Fentanyl	14	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	13	suppressed
Flecainide Acetate	Flecainide Acetate	13	suppressed
Memantine Hcl	Memantine Hcl	13	suppressed
Methotrexate	Methotrexate Sodium	13	suppressed
Percocet	Oxycodone Hcl/Acetaminophen	13	suppressed
Spiriva Handihaler	Tiotropium Bromide	13	suppressed
Testosterone Cypionate	Testosterone Cypionate	13	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	12	suppressed
Digoxin	Digoxin	12	suppressed
Ketorolac Tromethamine	Ketorolac Tromethamine	12	suppressed
Midodrine Hcl	Midodrine Hcl	12	suppressed
Oxcarbazepine	Oxcarbazepine	12	suppressed
Oxycontin	Oxycodone Hcl	12	suppressed
Penicillin V Potassium	Penicillin V Potassium	12	suppressed
Telmisartan-Hydrochlorothiazid	Telmisartan/Hydrochlorothiazid	12	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	12	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	11	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	11	suppressed
Baclofen	Baclofen	11	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	11	suppressed
Folic Acid	Folic Acid	11	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	11	suppressed
Varenicline Tartrate	Varenicline Tartrate	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