Healthcare provider profile · identity verified

William Simpson Davis, MD

Emergency Medicine · WINCHESTER, KY · NPI 1891723680

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
Gabapentin	Gabapentin	441	72
Atorvastatin Calcium	Atorvastatin Calcium	398	107
Lisinopril	Lisinopril	290	67
Omeprazole	Omeprazole	241	54
Amlodipine Besylate	Amlodipine Besylate	220	60
Levothyroxine Sodium	Levothyroxine Sodium	215	52
Metoprolol Succinate	Metoprolol Succinate	211	49
Albuterol Sulfate Hfa	Albuterol Sulfate	198	56
Pantoprazole Sodium	Pantoprazole Sodium	179	46
Furosemide	Furosemide	154	42
Hydrochlorothiazide	Hydrochlorothiazide	148	33
Buspirone Hcl	Buspirone Hcl	144	26
Carvedilol	Carvedilol	140	27
Metformin Hcl	Metformin Hcl	132	40
Montelukast Sodium	Montelukast Sodium	129	33
Alprazolam	Alprazolam	128	24
Eliquis	Apixaban	125	25
Tamsulosin Hcl	Tamsulosin Hcl	122	32
Fluoxetine Hcl	Fluoxetine Hcl	119	27
Losartan Potassium	Losartan Potassium	117	32
Clopidogrel	Clopidogrel Bisulfate	114	34
Metformin Hcl Er	Metformin Hcl	114	28
Tramadol Hcl	Tramadol Hcl	110	27
Fluticasone Propionate	Fluticasone Propionate	107	37
Tizanidine Hcl	Tizanidine Hcl	104	24
Ventolin Hfa	Albuterol Sulfate	103	16
Trazodone Hcl	Trazodone Hcl	102	21
Isosorbide Mononitrate Er	Isosorbide Mononitrate	100	19
Bupropion Xl	Bupropion Hcl	99	17
Clonazepam	Clonazepam	92	15
Ibuprofen	Ibuprofen	85	24
Celecoxib	Celecoxib	84	18
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	80	14
Doxepin Hcl	Doxepin Hcl	79	12
Potassium Chloride	Potassium Chloride	78	18
Duloxetine Hcl	Duloxetine Hcl	77	17
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	75	19
Simvastatin	Simvastatin	74	19
Diclofenac Sodium	Diclofenac Sodium	70	16
Amitriptyline Hcl	Amitriptyline Hcl	69	16
Allopurinol	Allopurinol	65	20
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	65	20
Glipizide Er	Glipizide	63	17
Ondansetron Hcl	Ondansetron Hcl	63	16
Nitroglycerin	Nitroglycerin	62	31
Rosuvastatin Calcium	Rosuvastatin Calcium	62	14
Alendronate Sodium	Alendronate Sodium	61	19
Finasteride	Finasteride	61	14
Nifedipine Er	Nifedipine	59	18
Farxiga	Dapagliflozin Propanediol	56	14
Zolpidem Tartrate	Zolpidem Tartrate	55	suppressed
Famotidine	Famotidine	54	11
Mupirocin	Mupirocin	54	24
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	53	13
Ondansetron Odt	Ondansetron	52	15
Citalopram Hbr	Citalopram Hydrobromide	50	11
Prednisone	Prednisone	50	21
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	49	suppressed
Paroxetine Hcl	Paroxetine Hcl	47	12
Ezetimibe	Ezetimibe	46	14
Meloxicam	Meloxicam	45	16
Promethazine Hcl	Promethazine Hcl	44	15
Symbicort	Budesonide/Formoterol Fumarate	44	13
Metoprolol Tartrate	Metoprolol Tartrate	43	13
Pregabalin	Pregabalin	43	suppressed
Hydralazine Hcl	Hydralazine Hcl	40	suppressed
Levetiracetam	Levetiracetam	40	suppressed
Spironolactone	Spironolactone	39	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	39	suppressed
Sertraline Hcl	Sertraline Hcl	38	suppressed
Sucralfate	Sucralfate	38	suppressed
Glipizide	Glipizide	37	suppressed
Mounjaro	Tirzepatide	37	suppressed
Warfarin Sodium	Warfarin Sodium	35	suppressed
Diazepam	Diazepam	34	suppressed
Ropinirole Hcl	Ropinirole Hcl	34	suppressed
Irbesartan	Irbesartan	32	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	32	21
Glimepiride	Glimepiride	30	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	28	suppressed
Midodrine Hcl	Midodrine Hcl	28	suppressed
Bumetanide	Bumetanide	27	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	27	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	27	15
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	27	suppressed
Azithromycin	Azithromycin	26	21
Dropsafe Prep Pads	Alcohol Antiseptic Pads	26	suppressed
Januvia	Sitagliptin Phosphate	26	suppressed
Pravastatin Sodium	Pravastatin Sodium	26	suppressed
Ozempic	Semaglutide	25	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	25	suppressed
Memantine Hcl	Memantine Hcl	24	suppressed
Cephalexin	Cephalexin	23	17
Jardiance	Empagliflozin	23	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	23	11
Breyna	Budesonide/Formoterol Fumarate	22	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	22	14
Hydroxyzine Hcl	Hydroxyzine Hcl	22	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	22	suppressed
Levofloxacin	Levofloxacin	21	19
Acyclovir	Acyclovir	20	suppressed
Breo Ellipta	Fluticasone/Vilanterol	20	suppressed
Clonidine Hcl	Clonidine Hcl	20	suppressed
Ketoconazole	Ketoconazole	20	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	20	suppressed
Valsartan	Valsartan	20	suppressed
Cimetidine	Cimetidine	19	suppressed
Methylprednisolone	Methylprednisolone	19	18
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	18	suppressed
Incruse Ellipta	Umeclidinium Bromide	18	suppressed
Lovastatin	Lovastatin	18	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	18	suppressed
Testosterone Cypionate	Testosterone Cypionate	18	suppressed
Xarelto	Rivaroxaban	18	suppressed
Benazepril Hcl	Benazepril Hcl	17	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	17	suppressed
Movantik	Naloxegol Oxalate	17	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	17	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	17	suppressed
Amoxicillin	Amoxicillin	16	13
Donepezil Hcl	Donepezil Hcl	16	suppressed
Meclizine Hcl	Meclizine Hcl	16	suppressed
Methocarbamol	Methocarbamol	16	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	16	16
Trulicity	Dulaglutide	16	suppressed
Baclofen	Baclofen	15	suppressed
Chlorthalidone	Chlorthalidone	15	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	15	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	15	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	15	suppressed
Synthroid	Levothyroxine Sodium	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Vascepa	Icosapent Ethyl	15	suppressed
Amiodarone Hcl	Amiodarone Hcl	14	suppressed
Hydrocortisone	Hydrocortisone	14	suppressed
Indomethacin	Indomethacin	14	suppressed
Oxycodone Hcl	Oxycodone Hcl	14	suppressed
Aripiprazole	Aripiprazole	13	suppressed
Gemfibrozil	Gemfibrozil	13	suppressed
Mirtazapine	Mirtazapine	13	suppressed
Nystatin	Nystatin	13	suppressed
Permethrin	Permethrin	13	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	12	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	12	suppressed
Clobetasol Propionate	Clobetasol Propionate	12	suppressed
Entresto	Sacubitril/Valsartan	12	suppressed
Ibu	Ibuprofen	12	suppressed
Prazosin Hcl	Prazosin Hcl	12	suppressed
Propranolol Hcl	Propranolol Hcl	12	suppressed
Torsemide	Torsemide	12	suppressed
Alprazolam Odt	Alprazolam	11	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	11	suppressed
Fluconazole	Fluconazole	11	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	11	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Linzess	Linaclotide	11	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	11	suppressed
Rivastigmine	Rivastigmine	11	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	11	suppressed
Venlafaxine Hcl	Venlafaxine 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