Healthcare provider profile · identity verified

John A Witman

Family Practice · HARRISONBURG, VA · NPI 1033111448

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	690	189
Amlodipine Besylate	Amlodipine Besylate	565	138
Levothyroxine Sodium	Levothyroxine Sodium	511	126
Lisinopril	Lisinopril	456	131
Losartan Potassium	Losartan Potassium	344	108
Hydrochlorothiazide	Hydrochlorothiazide	325	92
Sertraline Hcl	Sertraline Hcl	307	67
Simvastatin	Simvastatin	289	83
Pantoprazole Sodium	Pantoprazole Sodium	261	62
Rosuvastatin Calcium	Rosuvastatin Calcium	235	71
Furosemide	Furosemide	221	60
Gabapentin	Gabapentin	220	61
Metformin Hcl	Metformin Hcl	215	58
Omeprazole	Omeprazole	203	60
Eliquis	Apixaban	197	38
Metoprolol Succinate	Metoprolol Succinate	192	54
Tamsulosin Hcl	Tamsulosin Hcl	177	53
Alprazolam	Alprazolam	173	50
Glimepiride	Glimepiride	162	44
Metformin Hcl Er	Metformin Hcl	144	39
Metoprolol Tartrate	Metoprolol Tartrate	137	42
Ezetimibe	Ezetimibe	132	41
Carvedilol	Carvedilol	124	36
Citalopram Hbr	Citalopram Hydrobromide	122	29
Synthroid	Levothyroxine Sodium	119	29
Pioglitazone Hcl	Pioglitazone Hcl	110	28
Potassium Chloride	Potassium Chloride	106	32
Donepezil Hcl	Donepezil Hcl	105	26
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	104	28
Meloxicam	Meloxicam	88	22
Duloxetine Hcl	Duloxetine Hcl	87	18
Allopurinol	Allopurinol	85	22
Venlafaxine Hcl Er	Venlafaxine Hcl	84	20
Clopidogrel	Clopidogrel Bisulfate	79	22
Montelukast Sodium	Montelukast Sodium	75	19
Valsartan	Valsartan	74	23
Amitriptyline Hcl	Amitriptyline Hcl	65	11
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	65	59
Alendronate Sodium	Alendronate Sodium	62	17
Pravastatin Sodium	Pravastatin Sodium	61	18
Buspirone Hcl	Buspirone Hcl	56	15
Warfarin Sodium	Warfarin Sodium	56	13
Azithromycin	Azithromycin	54	51
Diclofenac Sodium	Diclofenac Sodium	53	19
Jardiance	Empagliflozin	53	14
Zolpidem Tartrate	Zolpidem Tartrate	53	15
Doxycycline Hyclate	Doxycycline Hyclate	52	45
Cephalexin	Cephalexin	51	46
Spironolactone	Spironolactone	51	14
Fluoxetine Hcl	Fluoxetine Hcl	50	15
Prednisone	Prednisone	50	45
Famotidine	Famotidine	49	12
Esomeprazole Magnesium	Esomeprazole Magnesium	47	14
Cefuroxime	Cefuroxime Axetil	46	33
Atenolol	Atenolol	45	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	43	23
Trazodone Hcl	Trazodone Hcl	43	19
Bupropion Xl	Bupropion Hcl	41	12
Finasteride	Finasteride	39	13
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	36	suppressed
Paroxetine Hcl	Paroxetine Hcl	36	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	35	13
Telmisartan	Telmisartan	34	suppressed
Tramadol Hcl	Tramadol Hcl	34	13
Memantine Hcl Er	Memantine Hcl	32	suppressed
Ozempic	Semaglutide	32	suppressed
Terazosin Hcl	Terazosin Hcl	30	suppressed
Lamotrigine	Lamotrigine	29	suppressed
Lovastatin	Lovastatin	29	suppressed
Celecoxib	Celecoxib	27	13
Clonazepam	Clonazepam	27	suppressed
Dexlansoprazole Dr	Dexlansoprazole	26	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	26	suppressed
Valacyclovir	Valacyclovir Hcl	26	16
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	25	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	25	suppressed
Ipratropium Bromide	Ipratropium Bromide	25	suppressed
Midodrine Hcl	Midodrine Hcl	25	suppressed
Tacrolimus	Tacrolimus	25	suppressed
Ropinirole Hcl	Ropinirole Hcl	24	suppressed
Rybelsus	Semaglutide	24	suppressed
Aripiprazole	Aripiprazole	23	suppressed
Mirtazapine	Mirtazapine	23	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	23	suppressed
Xarelto	Rivaroxaban	23	suppressed
Clonidine Hcl	Clonidine Hcl	22	suppressed
Lansoprazole	Lansoprazole	22	suppressed
Verapamil Er	Verapamil Hcl	22	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	21	suppressed
Amoxicillin	Amoxicillin	20	14
Trulicity	Dulaglutide	20	suppressed
Fluticasone Propionate	Fluticasone Propionate	19	suppressed
Topiramate	Topiramate	19	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	18	17
Escitalopram Oxalate	Escitalopram Oxalate	18	suppressed
Fosinopril Sodium	Fosinopril Sodium	18	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	18	suppressed
Glipizide Er	Glipizide	17	suppressed
Pregabalin	Pregabalin	17	suppressed
Benazepril Hcl	Benazepril Hcl	16	suppressed
Januvia	Sitagliptin Phosphate	16	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	16	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	16	suppressed
Probenecid	Probenecid	16	suppressed
Propranolol Hcl	Propranolol Hcl	16	suppressed
Azelastine Hcl	Azelastine Hcl	15	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	15	suppressed
Diphenhydramine Hcl	Diphenhydramine Hcl	15	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	15	15
Acetaminophen-Codeine	Acetaminophen With Codeine	14	12
Bupropion Hcl Sr	Bupropion Hcl	14	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	14	suppressed
Memantine Hcl	Memantine Hcl	14	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	14	suppressed
Prazosin Hcl	Prazosin Hcl	14	suppressed
Tiadylt Er	Diltiazem Hcl	14	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	14	suppressed
Dutasteride	Dutasteride	13	suppressed
Fluconazole	Fluconazole	13	suppressed
Gemfibrozil	Gemfibrozil	13	suppressed
Mycophenolate Mofetil	Mycophenolate Mofetil	13	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	13	suppressed
Sucralfate	Sucralfate	13	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	12	suppressed
Enalapril Maleate	Enalapril Maleate	12	suppressed
Estradiol	Estradiol	12	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Nitroglycerin	Nitroglycerin	12	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	12	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	12	suppressed
Trospium Chloride	Trospium Chloride	12	suppressed
Acyclovir	Acyclovir	11	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	11	suppressed
Invokana	Canagliflozin	11	suppressed
Irbesartan	Irbesartan	11	suppressed
Spiriva Respimat	Tiotropium Bromide	11	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	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