Healthcare provider profile · identity verified

William Zimmer, MD

Internal Medicine · MARTINSVILLE, VA · NPI 1003885153

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
Amlodipine Besylate	Amlodipine Besylate	595	209
Omeprazole	Omeprazole	486	174
Lisinopril	Lisinopril	443	142
Alprazolam	Alprazolam	426	110
Gabapentin	Gabapentin	407	128
Levothyroxine Sodium	Levothyroxine Sodium	388	137
Atorvastatin Calcium	Atorvastatin Calcium	371	139
Simvastatin	Simvastatin	364	122
Metoprolol Tartrate	Metoprolol Tartrate	336	111
Losartan Potassium	Losartan Potassium	320	113
Metoprolol Succinate	Metoprolol Succinate	318	98
Furosemide	Furosemide	300	111
Metformin Hcl	Metformin Hcl	247	85
Pantoprazole Sodium	Pantoprazole Sodium	243	93
Hydrochlorothiazide	Hydrochlorothiazide	223	80
Tamsulosin Hcl	Tamsulosin Hcl	222	77
Diclofenac Sodium	Diclofenac Sodium	219	67
Eliquis	Apixaban	206	49
Trazodone Hcl	Trazodone Hcl	189	64
Albuterol Sulfate Hfa	Albuterol Sulfate	187	58
Sertraline Hcl	Sertraline Hcl	157	49
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	156	33
Buspirone Hcl	Buspirone Hcl	152	51
Escitalopram Oxalate	Escitalopram Oxalate	151	50
Carvedilol	Carvedilol	148	54
Tramadol Hcl	Tramadol Hcl	141	33
Glimepiride	Glimepiride	138	45
Clopidogrel	Clopidogrel Bisulfate	137	50
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	125	42
Pravastatin Sodium	Pravastatin Sodium	120	46
Tizanidine Hcl	Tizanidine Hcl	120	35
Allopurinol	Allopurinol	117	44
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	114	37
Mirtazapine	Mirtazapine	107	31
Alendronate Sodium	Alendronate Sodium	104	30
Donepezil Hcl	Donepezil Hcl	101	33
Rosuvastatin Calcium	Rosuvastatin Calcium	101	37
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	100	74
Prednisone	Prednisone	99	51
Celecoxib	Celecoxib	98	28
Famotidine	Famotidine	94	34
Azithromycin	Azithromycin	91	79
Lorazepam	Lorazepam	91	22
Fluoxetine Hcl	Fluoxetine Hcl	90	26
Montelukast Sodium	Montelukast Sodium	90	32
Citalopram Hbr	Citalopram Hydrobromide	89	32
Fluticasone Propionate	Fluticasone Propionate	89	36
Ibuprofen	Ibuprofen	89	25
Clonazepam	Clonazepam	85	17
Doxycycline Hyclate	Doxycycline Hyclate	83	71
Glipizide	Glipizide	82	27
Atenolol	Atenolol	81	30
Potassium Chloride	Potassium Chloride	80	26
Hydralazine Hcl	Hydralazine Hcl	78	31
Memantine Hcl	Memantine Hcl	76	19
Meloxicam	Meloxicam	71	26
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	70	26
Glipizide Er	Glipizide	68	24
Nystatin	Nystatin	67	33
Zolpidem Tartrate	Zolpidem Tartrate	66	18
Finasteride	Finasteride	63	23
Quetiapine Fumarate	Quetiapine Fumarate	63	19
Metformin Hcl Er	Metformin Hcl	61	25
Clonidine Hcl	Clonidine Hcl	58	18
Paroxetine Hcl	Paroxetine Hcl	56	23
Benazepril Hcl	Benazepril Hcl	55	16
Isosorbide Mononitrate Er	Isosorbide Mononitrate	55	21
Diazepam	Diazepam	53	15
Ondansetron Hcl	Ondansetron Hcl	53	23
Amitriptyline Hcl	Amitriptyline Hcl	50	16
Mometasone Furoate	Mometasone Furoate	50	26
Ozempic	Semaglutide	50	suppressed
Pregabalin	Pregabalin	50	12
Duloxetine Hcl	Duloxetine Hcl	49	22
Levofloxacin	Levofloxacin	48	38
Promethazine Hcl	Promethazine Hcl	48	12
Meclizine Hcl	Meclizine Hcl	47	17
Oxycodone Hcl	Oxycodone Hcl	45	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	44	14
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	44	16
Jardiance	Empagliflozin	42	suppressed
Warfarin Sodium	Warfarin Sodium	40	16
Spironolactone	Spironolactone	39	18
Valacyclovir	Valacyclovir Hcl	39	15
Amoxicillin	Amoxicillin	38	21
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	37	15
Eszopiclone	Eszopiclone	36	suppressed
Lovastatin	Lovastatin	36	12
Torsemide	Torsemide	36	15
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	35	suppressed
Bupropion Xl	Bupropion Hcl	34	11
Ciprofloxacin Hcl	Ciprofloxacin Hcl	34	27
Ezetimibe	Ezetimibe	34	13
Synthroid	Levothyroxine Sodium	34	suppressed
Methocarbamol	Methocarbamol	33	suppressed
Fluconazole	Fluconazole	32	21
Nitroglycerin	Nitroglycerin	32	21
Propranolol Hcl	Propranolol Hcl	32	suppressed
Valsartan	Valsartan	32	14
Dicyclomine Hcl	Dicyclomine Hcl	31	14
Esomeprazole Magnesium	Esomeprazole Magnesium	31	12
Hydrocortisone	Hydrocortisone	31	suppressed
Klor-Con M20	Potassium Chloride	30	17
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	30	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	30	suppressed
Baclofen	Baclofen	29	18
Januvia	Sitagliptin Phosphate	29	suppressed
Topiramate	Topiramate	28	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	27	17
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	27	suppressed
Ramipril	Ramipril	27	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	26	suppressed
Entresto	Sacubitril/Valsartan	26	suppressed
Bumetanide	Bumetanide	25	suppressed
Ondansetron Odt	Ondansetron	25	suppressed
Telmisartan	Telmisartan	25	suppressed
Xarelto	Rivaroxaban	25	suppressed
Labetalol Hcl	Labetalol Hcl	23	suppressed
Ventolin Hfa	Albuterol Sulfate	23	suppressed
Bupropion Hcl Sr	Bupropion Hcl	22	suppressed
Estradiol	Estradiol	22	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	22	18
Risperidone	Risperidone	22	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	22	16
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	22	suppressed
Droplet Pen Needle	Pen Needle, Diabetic	21	suppressed
Ropinirole Hcl	Ropinirole Hcl	21	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Clonidine	Clonidine	20	suppressed
Sucralfate	Sucralfate	20	suppressed
Verapamil Er	Verapamil Hcl	20	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	18	suppressed
Irbesartan	Irbesartan	18	suppressed
Novolog Flexpen	Insulin Aspart	18	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	18	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	17	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	17	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	17	suppressed
Colchicine	Colchicine	16	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	16	suppressed
Dropsafe Prep Pads	Alcohol Antiseptic Pads	16	suppressed
Levetiracetam	Levetiracetam	16	suppressed
Nabumetone	Nabumetone	16	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	16	16
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	16	12
Hydroxyzine Pamoate	Hydroxyzine Pamoate	15	suppressed
Klor-Con M10	Potassium Chloride	15	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	15	suppressed
Symbicort	Budesonide/Formoterol Fumarate	15	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	14	suppressed
Aripiprazole	Aripiprazole	14	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	14	suppressed
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Humalog Kwikpen U-100	Insulin Lispro	13	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	13	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	13	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	13	suppressed
Anastrozole	Anastrozole	12	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	12	suppressed
Carbamazepine Er	Carbamazepine	12	suppressed
Cephalexin	Cephalexin	12	suppressed
Levemir Flexpen	Insulin Detemir	12	suppressed
Loperamide	Loperamide Hcl	12	suppressed
Nebivolol Hcl	Nebivolol Hcl	12	suppressed
Tresiba Flextouch U-100	Insulin Degludec	12	suppressed
Trulicity	Dulaglutide	12	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	11	suppressed
Calcitriol	Calcitriol	11	suppressed
Farxiga	Dapagliflozin Propanediol	11	suppressed
Megestrol Acetate	Megestrol Acetate	11	suppressed
Methadone Hcl	Methadone Hcl	11	suppressed
Naproxen	Naproxen	11	suppressed
Novolog Mix 70-30 Flexpen	Insulin Aspart Prot/Insuln Asp	11	suppressed
Tobramycin	Tobramycin	11	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	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