Healthcare provider profile · identity verified

Brian Caswell-Monack, D.O.

Family Practice · LEWES, DE · NPI 1164733291

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	504	129
Lisinopril	Lisinopril	336	89
Amlodipine Besylate	Amlodipine Besylate	299	87
Levothyroxine Sodium	Levothyroxine Sodium	299	70
Rosuvastatin Calcium	Rosuvastatin Calcium	286	77
Losartan Potassium	Losartan Potassium	255	73
Omeprazole	Omeprazole	220	65
Metoprolol Succinate	Metoprolol Succinate	203	58
Hydrochlorothiazide	Hydrochlorothiazide	185	53
Simvastatin	Simvastatin	178	41
Metformin Hcl	Metformin Hcl	157	43
Pravastatin Sodium	Pravastatin Sodium	143	38
Pantoprazole Sodium	Pantoprazole Sodium	141	37
Metformin Hcl Er	Metformin Hcl	137	38
Tamsulosin Hcl	Tamsulosin Hcl	135	32
Fluticasone Propionate	Fluticasone Propionate	131	45
Gabapentin	Gabapentin	123	37
Glimepiride	Glimepiride	115	31
Alprazolam	Alprazolam	112	32
Escitalopram Oxalate	Escitalopram Oxalate	111	31
Trazodone Hcl	Trazodone Hcl	111	36
Allopurinol	Allopurinol	99	26
Glipizide Er	Glipizide	93	24
Montelukast Sodium	Montelukast Sodium	87	24
Synthroid	Levothyroxine Sodium	83	22
Atenolol	Atenolol	76	19
Bupropion Xl	Bupropion Hcl	74	21
Sertraline Hcl	Sertraline Hcl	72	21
Sumatriptan Succinate	Sumatriptan Succinate	57	11
Trulicity	Dulaglutide	56	suppressed
Tramadol Hcl	Tramadol Hcl	51	14
Famotidine	Famotidine	50	19
Furosemide	Furosemide	49	17
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	48	13
Albuterol Sulfate Hfa	Albuterol Sulfate	47	23
Venlafaxine Hcl Er	Venlafaxine Hcl	46	13
Carvedilol	Carvedilol	45	suppressed
Clopidogrel	Clopidogrel Bisulfate	45	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	44	13
Fluoxetine Hcl	Fluoxetine Hcl	43	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	42	11
Ezetimibe	Ezetimibe	40	13
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	40	suppressed
Meloxicam	Meloxicam	40	11
Azelastine Hcl	Azelastine Hcl	38	15
Ozempic	Semaglutide	38	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	38	13
Azithromycin	Azithromycin	36	27
Buspirone Hcl	Buspirone Hcl	36	11
Dicyclomine Hcl	Dicyclomine Hcl	36	suppressed
Lorazepam	Lorazepam	36	suppressed
Finasteride	Finasteride	35	suppressed
Lovastatin	Lovastatin	35	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	35	suppressed
Potassium Chloride	Potassium Chloride	35	11
Duloxetine Hcl	Duloxetine Hcl	34	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	34	suppressed
Paroxetine Hcl	Paroxetine Hcl	33	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	32	12
Ipratropium Bromide	Ipratropium Bromide	32	12
Esomeprazole Magnesium	Esomeprazole Magnesium	31	suppressed
Prednisone	Prednisone	31	28
Fenofibrate	Fenofibrate	30	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	30	suppressed
Propranolol Hcl Er	Propranolol Hcl	30	suppressed
Irbesartan	Irbesartan	28	suppressed
Spironolactone	Spironolactone	28	suppressed
Benazepril Hcl	Benazepril Hcl	27	suppressed
Citalopram Hbr	Citalopram Hydrobromide	27	suppressed
Januvia	Sitagliptin Phosphate	27	suppressed
Mirtazapine	Mirtazapine	27	suppressed
Cephalexin	Cephalexin	26	24
Lansoprazole	Lansoprazole	26	suppressed
Naproxen	Naproxen	26	suppressed
Ramipril	Ramipril	26	suppressed
Clonazepam	Clonazepam	25	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	25	suppressed
Eliquis	Apixaban	24	suppressed
Ibuprofen	Ibuprofen	24	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	24	suppressed
Fenofibrate	Fenofibrate,micronized	23	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	22	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	20
Cimetidine	Cimetidine	21	suppressed
Diazepam	Diazepam	21	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	21	suppressed
Ketoconazole	Ketoconazole	21	suppressed
Nystatin	Nystatin	21	suppressed
Rybelsus	Semaglutide	21	suppressed
Celecoxib	Celecoxib	20	suppressed
Valsartan	Valsartan	20	suppressed
Tizanidine Hcl	Tizanidine Hcl	19	suppressed
Xarelto	Rivaroxaban	18	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	17	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	17	suppressed
Pregabalin	Pregabalin	17	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	17	suppressed
Donepezil Hcl	Donepezil Hcl	16	suppressed
Enalapril Maleate	Enalapril Maleate	16	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	16	suppressed
Methylprednisolone	Methylprednisolone	16	15
Terazosin Hcl	Terazosin Hcl	16	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	15	suppressed
Fluconazole	Fluconazole	15	suppressed
Olanzapine	Olanzapine	15	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	15	14
Triamcinolone Acetonide	Triamcinolone Acetonide	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Ventolin Hfa	Albuterol Sulfate	15	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	15	suppressed
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	14	14
Amitriptyline Hcl	Amitriptyline Hcl	14	suppressed
Bethanechol Chloride	Bethanechol Chloride	14	suppressed
Bupropion Hcl Sr	Bupropion Hcl	14	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	14	suppressed
Promethazine Hcl	Promethazine Hcl	14	suppressed
Clorazepate Dipotassium	Clorazepate Dipotassium	13	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Levetiracetam	Levetiracetam	13	suppressed
Oxcarbazepine	Oxcarbazepine	13	suppressed
Ambien Cr	Zolpidem Tartrate	12	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	12	suppressed
Chlorthalidone	Chlorthalidone	11	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	11	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	11	11
Pentoxifylline	Pentoxifylline	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