Healthcare provider profile · identity verified

Michael Matthews

Family Practice · GRANGEVILLE, ID · NPI 1609255116

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
Omeprazole	Omeprazole	218	69
Levothyroxine Sodium	Levothyroxine Sodium	215	52
Atorvastatin Calcium	Atorvastatin Calcium	212	59
Lisinopril	Lisinopril	174	57
Losartan Potassium	Losartan Potassium	161	41
Metoprolol Succinate	Metoprolol Succinate	137	39
Amlodipine Besylate	Amlodipine Besylate	135	39
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	125	54
Tamsulosin Hcl	Tamsulosin Hcl	124	40
Furosemide	Furosemide	104	29
Simvastatin	Simvastatin	97	23
Metformin Hcl	Metformin Hcl	96	31
Trazodone Hcl	Trazodone Hcl	94	33
Tramadol Hcl	Tramadol Hcl	93	20
Potassium Chloride	Potassium Chloride	87	25
Gabapentin	Gabapentin	79	19
Escitalopram Oxalate	Escitalopram Oxalate	68	15
Spironolactone	Spironolactone	64	14
Finasteride	Finasteride	62	16
Rosuvastatin Calcium	Rosuvastatin Calcium	61	21
Famotidine	Famotidine	60	14
Prednisone	Prednisone	59	40
Hydrochlorothiazide	Hydrochlorothiazide	57	17
Clonazepam	Clonazepam	52	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	51	18
Pravastatin Sodium	Pravastatin Sodium	49	suppressed
Alprazolam	Alprazolam	48	12
Bumetanide	Bumetanide	48	suppressed
Montelukast Sodium	Montelukast Sodium	47	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	47	19
Clopidogrel	Clopidogrel Bisulfate	44	suppressed
Donepezil Hcl	Donepezil Hcl	43	suppressed
Fluticasone Propionate	Fluticasone Propionate	43	16
Lorazepam	Lorazepam	43	13
Bupropion Xl	Bupropion Hcl	42	11
Xarelto	Rivaroxaban	42	suppressed
Allopurinol	Allopurinol	41	suppressed
Tizanidine Hcl	Tizanidine Hcl	41	suppressed
Buspirone Hcl	Buspirone Hcl	39	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	38	17
Citalopram Hbr	Citalopram Hydrobromide	38	suppressed
Duloxetine Hcl	Duloxetine Hcl	38	11
Amitriptyline Hcl	Amitriptyline Hcl	37	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	37	15
Synthroid	Levothyroxine Sodium	37	suppressed
Testosterone Cypionate	Testosterone Cypionate	37	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	36	14
Meloxicam	Meloxicam	36	13
Sertraline Hcl	Sertraline Hcl	36	11
Pregabalin	Pregabalin	35	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	34	13
Ondansetron Odt	Ondansetron	33	suppressed
Metformin Hcl Er	Metformin Hcl	31	12
Hydroxyzine Hcl	Hydroxyzine Hcl	30	12
Eliquis	Apixaban	29	13
Fentanyl	Fentanyl	29	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	28	suppressed
Estradiol	Estradiol	28	suppressed
Diazepam	Diazepam	27	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	26	suppressed
Mirtazapine	Mirtazapine	24	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	24	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	23	suppressed
Oxycodone Hcl	Oxycodone Hcl	22	suppressed
Warfarin Sodium	Warfarin Sodium	22	suppressed
Baclofen	Baclofen	21	suppressed
Carvedilol	Carvedilol	21	suppressed
Dilt-Xr	Diltiazem Hcl	21	suppressed
Ezetimibe	Ezetimibe	21	suppressed
Alendronate Sodium	Alendronate Sodium	20	suppressed
Fluconazole	Fluconazole	20	suppressed
Glipizide Er	Glipizide	20	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	20	suppressed
Trulicity	Dulaglutide	20	suppressed
Levofloxacin	Levofloxacin	19	15
Atenolol	Atenolol	18	suppressed
Buprenorphine Hcl	Buprenorphine Hcl	18	suppressed
Carisoprodol	Carisoprodol	18	suppressed
Cephalexin	Cephalexin	18	12
Esomeprazole Magnesium	Esomeprazole Magnesium	18	suppressed
Methocarbamol	Methocarbamol	18	suppressed
Ondansetron Hcl	Ondansetron Hcl	18	13
Amoxicillin	Amoxicillin	17	16
Ibuprofen	Ibuprofen	17	suppressed
Novolog Flexpen	Insulin Aspart	17	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	17	suppressed
Aripiprazole	Aripiprazole	16	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	16	14
Levetiracetam	Levetiracetam	16	suppressed
Ozempic	Semaglutide	16	suppressed
Paroxetine Hcl	Paroxetine Hcl	16	suppressed
Promethazine Hcl	Promethazine Hcl	16	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	15	suppressed
Invega Sustenna	Paliperidone Palmitate	15	suppressed
Latanoprost	Latanoprost	15	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	15	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	15	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	15	suppressed
Ropinirole Hcl	Ropinirole Hcl	15	suppressed
Torsemide	Torsemide	15	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	15	12
Valsartan	Valsartan	14	suppressed
Verapamil Er	Verapamil Hcl	14	suppressed
Acyclovir	Acyclovir	13	suppressed
Celecoxib	Celecoxib	13	suppressed
Clonidine Hcl	Clonidine Hcl	13	suppressed
Dabigatran Etexilate	Dabigatran Etexilate Mesylate	13	suppressed
Diclofenac Sodium	Diclofenac Sodium	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Imipramine Hcl	Imipramine Hcl	13	suppressed
Ipratropium Bromide	Ipratropium Bromide	13	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	13	suppressed
Jardiance	Empagliflozin	13	suppressed
Klor-Con M20	Potassium Chloride	13	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	13	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	13	suppressed
Risperidone	Risperidone	13	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	13	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Calcitriol	Calcitriol	12	suppressed
Chlorthalidone	Chlorthalidone	12	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Lyllana	Estradiol	12	suppressed
Sucralfate	Sucralfate	12	suppressed
Hydralazine Hcl	Hydralazine Hcl	11	suppressed
Lamotrigine	Lamotrigine	11	suppressed
Sotalol	Sotalol Hcl	11	suppressed
Terazosin Hcl	Terazosin 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