Healthcare provider profile · identity verified

Mark E Williams, MD

Family Practice · BEAVERCREEK, OH · NPI 1891894408

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	447	137
Levothyroxine Sodium	Levothyroxine Sodium	285	74
Amlodipine Besylate	Amlodipine Besylate	268	78
Lisinopril	Lisinopril	187	52
Omeprazole	Omeprazole	172	46
Pantoprazole Sodium	Pantoprazole Sodium	165	48
Gabapentin	Gabapentin	151	50
Metformin Hcl	Metformin Hcl	142	43
Losartan Potassium	Losartan Potassium	140	45
Metoprolol Succinate	Metoprolol Succinate	133	41
Rosuvastatin Calcium	Rosuvastatin Calcium	128	36
Hydrochlorothiazide	Hydrochlorothiazide	124	37
Alprazolam	Alprazolam	115	16
Duloxetine Hcl	Duloxetine Hcl	109	27
Simvastatin	Simvastatin	109	31
Tamsulosin Hcl	Tamsulosin Hcl	109	31
Pravastatin Sodium	Pravastatin Sodium	102	31
Tramadol Hcl	Tramadol Hcl	101	22
Furosemide	Furosemide	96	30
Metformin Hcl Er	Metformin Hcl	96	28
Escitalopram Oxalate	Escitalopram Oxalate	90	26
Trazodone Hcl	Trazodone Hcl	83	15
Glimepiride	Glimepiride	82	22
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	80	20
Pioglitazone Hcl	Pioglitazone Hcl	78	19
Metoprolol Tartrate	Metoprolol Tartrate	77	23
Allopurinol	Allopurinol	76	22
Carvedilol	Carvedilol	72	16
Albuterol Sulfate Hfa	Albuterol Sulfate	71	32
Eliquis	Apixaban	69	19
Valsartan	Valsartan	66	22
Alendronate Sodium	Alendronate Sodium	64	23
Clopidogrel	Clopidogrel Bisulfate	64	18
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	61	13
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	58	20
Sertraline Hcl	Sertraline Hcl	57	21
Warfarin Sodium	Warfarin Sodium	56	suppressed
Synthroid	Levothyroxine Sodium	55	14
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	53	17
Citalopram Hbr	Citalopram Hydrobromide	52	16
Lorazepam	Lorazepam	52	16
Mirtazapine	Mirtazapine	50	18
Methocarbamol	Methocarbamol	49	13
Potassium Chloride	Potassium Chloride	48	15
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	47	13
Montelukast Sodium	Montelukast Sodium	47	15
Prednisone	Prednisone	46	20
Meloxicam	Meloxicam	45	11
Ezetimibe	Ezetimibe	44	suppressed
Bupropion Xl	Bupropion Hcl	43	13
Celecoxib	Celecoxib	43	14
Azithromycin	Azithromycin	42	32
Bupropion Hcl	Bupropion Hcl	42	suppressed
Hydralazine Hcl	Hydralazine Hcl	41	12
Ozempic	Semaglutide	41	suppressed
Atenolol	Atenolol	40	12
Klor-Con M20	Potassium Chloride	39	suppressed
Ropinirole Hcl	Ropinirole Hcl	39	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	37	11
Olmesartan Medoxomil	Olmesartan Medoxomil	36	11
Jardiance	Empagliflozin	33	suppressed
Januvia	Sitagliptin Phosphate	32	suppressed
Fluticasone Propionate	Fluticasone Propionate	31	13
Glipizide Er	Glipizide	31	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	28	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	27	24
Glipizide	Glipizide	27	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	26	suppressed
Spironolactone	Spironolactone	26	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	26	22
Trulicity	Dulaglutide	26	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	25	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	25	suppressed
Ipratropium Bromide	Ipratropium Bromide	25	11
Lovastatin	Lovastatin	25	suppressed
Mounjaro	Tirzepatide	25	suppressed
Armour Thyroid	Thyroid,pork	24	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	24	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	24	suppressed
Donepezil Hcl	Donepezil Hcl	23	suppressed
Terazosin Hcl	Terazosin Hcl	23	suppressed
Creon	Lipase/Protease/Amylase	22	suppressed
Memantine Hcl	Memantine Hcl	22	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	21	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	21	16
Tizanidine Hcl	Tizanidine Hcl	21	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	20	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	20	suppressed
Valacyclovir	Valacyclovir Hcl	20	11
Venlafaxine Hcl Er	Venlafaxine Hcl	20	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	19	suppressed
Zolmitriptan Odt	Zolmitriptan	19	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	18	suppressed
Bupropion Hcl Sr	Bupropion Hcl	18	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	18	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	18	suppressed
Spiriva Respimat	Tiotropium Bromide	18	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	17	suppressed
Irbesartan	Irbesartan	17	suppressed
Repatha Sureclick	Evolocumab	17	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	16	11
Fenofibrate	Fenofibrate	16	suppressed
Ibuprofen	Ibuprofen	16	suppressed
Pregabalin	Pregabalin	16	suppressed
Promethazine Hcl	Promethazine Hcl	16	suppressed
Rybelsus	Semaglutide	16	suppressed
Verapamil Er	Verapamil Hcl	16	suppressed
Ondansetron Odt	Ondansetron	15	11
Amoxicillin	Amoxicillin	14	suppressed
Estradiol	Estradiol	14	suppressed
Farxiga	Dapagliflozin Propanediol	14	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	14	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	14	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	13	suppressed
Cephalexin	Cephalexin	13	suppressed
Chlorthalidone	Chlorthalidone	13	suppressed
Colchicine	Colchicine	13	suppressed
Divalproex Sodium	Divalproex Sodium	13	suppressed
Fluconazole	Fluconazole	13	11
Hydroxyzine Pamoate	Hydroxyzine Pamoate	13	suppressed
Symbicort	Budesonide/Formoterol Fumarate	13	suppressed
Baclofen	Baclofen	12	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	12	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	12	suppressed
Klor-Con M10	Potassium Chloride	12	suppressed
Methylprednisolone	Methylprednisolone	12	11
Mometasone Furoate	Mometasone Furoate	12	11
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	12	suppressed
Nitroglycerin	Nitroglycerin	12	suppressed
Buspirone Hcl	Buspirone Hcl	11	suppressed
Cilostazol	Cilostazol	11	suppressed
Finasteride	Finasteride	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

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