Healthcare provider profile · identity verified

Matthew N Gray, MD

Family Practice · CEDAR RAPIDS, IA · NPI 1053398982

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	1177	314
Levothyroxine Sodium	Levothyroxine Sodium	509	128
Amlodipine Besylate	Amlodipine Besylate	505	132
Lisinopril	Lisinopril	491	135
Pantoprazole Sodium	Pantoprazole Sodium	411	105
Hydrochlorothiazide	Hydrochlorothiazide	292	78
Metoprolol Succinate	Metoprolol Succinate	292	69
Omeprazole	Omeprazole	266	70
Rosuvastatin Calcium	Rosuvastatin Calcium	206	65
Gabapentin	Gabapentin	199	54
Irbesartan	Irbesartan	199	54
Simvastatin	Simvastatin	197	45
Losartan Potassium	Losartan Potassium	195	51
Metformin Hcl Er	Metformin Hcl	155	46
Escitalopram Oxalate	Escitalopram Oxalate	153	39
Allopurinol	Allopurinol	142	27
Duloxetine Hcl	Duloxetine Hcl	141	33
Glipizide Er	Glipizide	139	36
Metformin Hcl	Metformin Hcl	137	41
Montelukast Sodium	Montelukast Sodium	137	32
Ozempic	Semaglutide	125	23
Trazodone Hcl	Trazodone Hcl	120	32
Meloxicam	Meloxicam	116	48
Tamsulosin Hcl	Tamsulosin Hcl	113	32
Potassium Chloride	Potassium Chloride	109	25
Albuterol Sulfate Hfa	Albuterol Sulfate	103	54
Tramadol Hcl	Tramadol Hcl	101	28
Jardiance	Empagliflozin	100	26
Furosemide	Furosemide	92	28
Mirtazapine	Mirtazapine	88	12
Eliquis	Apixaban	81	20
Alprazolam	Alprazolam	74	25
Azithromycin	Azithromycin	74	64
Pravastatin Sodium	Pravastatin Sodium	70	18
Fluoxetine Hcl	Fluoxetine Hcl	69	17
Pregabalin	Pregabalin	69	17
Metoprolol Tartrate	Metoprolol Tartrate	63	16
Ropinirole Hcl	Ropinirole Hcl	63	15
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	61	16
Fluticasone Propionate	Fluticasone Propionate	60	22
Spironolactone	Spironolactone	60	13
Venlafaxine Hcl Er	Venlafaxine Hcl	58	14
Famotidine	Famotidine	57	suppressed
Prednisone	Prednisone	57	51
Trulicity	Dulaglutide	57	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	55	44
Clopidogrel	Clopidogrel Bisulfate	54	suppressed
Bupropion Xl	Bupropion Hcl	52	18
Citalopram Hbr	Citalopram Hydrobromide	52	13
Sertraline Hcl	Sertraline Hcl	52	15
Zolpidem Tartrate	Zolpidem Tartrate	50	suppressed
Ipratropium Bromide	Ipratropium Bromide	47	11
Mounjaro	Tirzepatide	47	suppressed
Ezetimibe	Ezetimibe	46	14
Breo Ellipta	Fluticasone/Vilanterol	44	suppressed
Lorazepam	Lorazepam	44	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	43	29
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	37	28
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	33	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	32	17
Oxybutynin Chloride Er	Oxybutynin Chloride	32	suppressed
Ventolin Hfa	Albuterol Sulfate	32	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	31	13
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	31	23
Linzess	Linaclotide	30	suppressed
Oxycodone Hcl	Oxycodone Hcl	30	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	30	suppressed
Atenolol	Atenolol	29	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	29	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	29	23
Sumatriptan Succinate	Sumatriptan Succinate	29	suppressed
Amiodarone Hcl	Amiodarone Hcl	28	suppressed
Bupropion Hcl Sr	Bupropion Hcl	28	suppressed
Chlorthalidone	Chlorthalidone	28	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	27	24
Farxiga	Dapagliflozin Propanediol	27	suppressed
Xarelto	Rivaroxaban	27	suppressed
Baclofen	Baclofen	26	suppressed
Glipizide	Glipizide	26	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	26	26
Tizanidine Hcl	Tizanidine Hcl	26	suppressed
Bumetanide	Bumetanide	25	suppressed
Amoxicillin	Amoxicillin	24	17
Donepezil Hcl	Donepezil Hcl	24	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	23	suppressed
Mupirocin	Mupirocin	23	18
Olmesartan Medoxomil	Olmesartan Medoxomil	23	suppressed
Valacyclovir	Valacyclovir Hcl	23	13
Benazepril Hcl	Benazepril Hcl	22	suppressed
Ondansetron Odt	Ondansetron	21	17
Isosorbide Mononitrate Er	Isosorbide Mononitrate	20	suppressed
Toujeo Max Solostar	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Alendronate Sodium	Alendronate Sodium	18	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	18	suppressed
Azelastine Hcl	Azelastine Hcl	17	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	17	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	17	suppressed
Celecoxib	Celecoxib	17	suppressed
Klor-Con M20	Potassium Chloride	17	suppressed
Synthroid	Levothyroxine Sodium	17	suppressed
Diclofenac Sodium	Diclofenac Sodium	16	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	16	suppressed
Finasteride	Finasteride	16	suppressed
Methocarbamol	Methocarbamol	16	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	16	suppressed
Estradiol	Estradiol	15	suppressed
Nifedipine Er	Nifedipine	15	suppressed
Tresiba Flextouch U-200	Insulin Degludec	15	suppressed
Buspirone Hcl	Buspirone Hcl	14	suppressed
Carvedilol	Carvedilol	14	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	14	suppressed
Methotrexate	Methotrexate Sodium	14	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	13	suppressed
Fenofibrate	Fenofibrate	13	suppressed
Levetiracetam	Levetiracetam	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	12	suppressed
Acyclovir	Acyclovir	12	suppressed
Clonidine	Clonidine	12	suppressed
Diltiazem 24hr Er (La)	Diltiazem Hcl	12	suppressed
Lovastatin	Lovastatin	12	suppressed
Olanzapine	Olanzapine	12	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	12	suppressed
Propranolol Hcl	Propranolol Hcl	12	suppressed
Ramipril	Ramipril	12	suppressed
Topiramate	Topiramate	12	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	11	suppressed
Ibuprofen	Ibuprofen	11	suppressed
Methylprednisolone	Methylprednisolone	11	11
Naproxen	Naproxen	11	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	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