Healthcare provider profile · identity verified

Christopher John Mays, M.D.

Internal Medicine · OLNEY, MD · NPI 1053306829

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
Rosuvastatin Calcium	Rosuvastatin Calcium	373	111
Atorvastatin Calcium	Atorvastatin Calcium	274	84
Amlodipine Besylate	Amlodipine Besylate	222	65
Levothyroxine Sodium	Levothyroxine Sodium	199	50
Lisinopril	Lisinopril	192	56
Synthroid	Levothyroxine Sodium	190	52
Simvastatin	Simvastatin	160	45
Losartan Potassium	Losartan Potassium	154	45
Gabapentin	Gabapentin	130	35
Hydrochlorothiazide	Hydrochlorothiazide	126	43
Metoprolol Succinate	Metoprolol Succinate	125	40
Pantoprazole Sodium	Pantoprazole Sodium	111	33
Alprazolam	Alprazolam	110	33
Tamsulosin Hcl	Tamsulosin Hcl	107	27
Omeprazole	Omeprazole	96	33
Sertraline Hcl	Sertraline Hcl	95	24
Pravastatin Sodium	Pravastatin Sodium	90	23
Metformin Hcl	Metformin Hcl	89	27
Olmesartan Medoxomil	Olmesartan Medoxomil	89	26
Escitalopram Oxalate	Escitalopram Oxalate	82	24
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	82	21
Clopidogrel	Clopidogrel Bisulfate	80	18
Zolpidem Tartrate	Zolpidem Tartrate	69	21
Famotidine	Famotidine	60	18
Metoprolol Tartrate	Metoprolol Tartrate	59	14
Tramadol Hcl	Tramadol Hcl	59	18
Januvia	Sitagliptin Phosphate	56	14
Metformin Hcl Er	Metformin Hcl	56	15
Ezetimibe	Ezetimibe	54	20
Furosemide	Furosemide	54	15
Finasteride	Finasteride	52	suppressed
Glimepiride	Glimepiride	48	15
Allopurinol	Allopurinol	45	14
Clonazepam	Clonazepam	43	suppressed
Ozempic	Semaglutide	42	suppressed
Potassium Chloride	Potassium Chloride	41	14
Irbesartan	Irbesartan	37	11
Albuterol Sulfate Hfa	Albuterol Sulfate	36	25
Atenolol	Atenolol	36	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	35	suppressed
Lorazepam	Lorazepam	35	suppressed
Trazodone Hcl	Trazodone Hcl	34	11
Jardiance	Empagliflozin	33	suppressed
Nebivolol Hcl	Nebivolol Hcl	33	suppressed
Warfarin Sodium	Warfarin Sodium	33	suppressed
Ondansetron Odt	Ondansetron	31	11
Duloxetine Hcl	Duloxetine Hcl	30	11
Valacyclovir	Valacyclovir Hcl	30	suppressed
Eliquis	Apixaban	29	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	29	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	27	suppressed
Terazosin Hcl	Terazosin Hcl	27	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	26	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	26	15
Prednisone	Prednisone	26	15
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	25	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	24	suppressed
Celecoxib	Celecoxib	24	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	24	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	24	21
Janumet Xr	Sitagliptin Phos/Metformin Hcl	23	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	23	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	21	suppressed
Diclofenac Sodium	Diclofenac Sodium	21	suppressed
Lansoprazole	Lansoprazole	21	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	20	suppressed
Fluticasone Propionate	Fluticasone Propionate	19	11
Montelukast Sodium	Montelukast Sodium	19	suppressed
Glipizide Er	Glipizide	18	suppressed
Methenamine Hippurate	Methenamine Hippurate	18	suppressed
Mirtazapine	Mirtazapine	18	suppressed
Azithromycin	Azithromycin	17	16
Carvedilol	Carvedilol	17	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	17	suppressed
Alendronate Sodium	Alendronate Sodium	16	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	16	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	16	suppressed
Levetiracetam	Levetiracetam	16	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	16	suppressed
Meloxicam	Meloxicam	16	suppressed
Mometasone Furoate	Mometasone Furoate	16	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	16	suppressed
Valsartan	Valsartan	16	suppressed
Acyclovir	Acyclovir	15	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	15	suppressed
Butalb-Acetaminoph-Caff-Codein	Butalbit/Acetamin/Caff/Codeine	15	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	15	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	15	13
Unithroid	Levothyroxine Sodium	15	suppressed
Bupropion Hcl Sr	Bupropion Hcl	14	suppressed
Candesartan Cilexetil	Candesartan Cilexetil	14	suppressed
Ramipril	Ramipril	14	suppressed
Sucralfate	Sucralfate	14	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	13	13
Bupropion Xl	Bupropion Hcl	13	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	13	12
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	13	suppressed
Hydralazine Hcl	Hydralazine Hcl	13	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	13	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	13	suppressed
Baclofen	Baclofen	12	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	12	suppressed
Clonidine Hcl	Clonidine Hcl	12	suppressed
Donepezil Hcl	Donepezil Hcl	12	suppressed
Dulera	Mometasone/Formoterol	12	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	12	suppressed
Farxiga	Dapagliflozin Propanediol	12	suppressed
Fenofibrate	Fenofibrate	12	suppressed
Ipratropium Bromide	Ipratropium Bromide	12	suppressed
Klor-Con M10	Potassium Chloride	12	suppressed
Methylprednisolone	Methylprednisolone	12	11
Testosterone	Testosterone	12	suppressed
Azelastine Hcl	Azelastine Hcl	11	suppressed
Eszopiclone	Eszopiclone	11	suppressed
Ondansetron Hcl	Ondansetron Hcl	11	suppressed
Paroxetine Hcl	Paroxetine Hcl	11	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	11	11

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