Healthcare provider profile · identity verified

Frank J Kessler, M.D.

Internal Medicine · BREWSTER, NY · NPI 1679500086

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	483	147
Atorvastatin Calcium	Atorvastatin Calcium	467	130
Rosuvastatin Calcium	Rosuvastatin Calcium	404	131
Levothyroxine Sodium	Levothyroxine Sodium	382	109
Losartan Potassium	Losartan Potassium	335	98
Metoprolol Succinate	Metoprolol Succinate	307	83
Zolpidem Tartrate	Zolpidem Tartrate	284	48
Escitalopram Oxalate	Escitalopram Oxalate	230	62
Pantoprazole Sodium	Pantoprazole Sodium	203	66
Albuterol Sulfate Hfa	Albuterol Sulfate	200	90
Pravastatin Sodium	Pravastatin Sodium	183	50
Metformin Hcl	Metformin Hcl	167	48
Jardiance	Empagliflozin	154	34
Meloxicam	Meloxicam	152	43
Omeprazole	Omeprazole	147	43
Famotidine	Famotidine	146	54
Lorazepam	Lorazepam	145	46
Prednisone	Prednisone	141	103
Allopurinol	Allopurinol	139	36
Lisinopril	Lisinopril	134	40
Tamsulosin Hcl	Tamsulosin Hcl	133	43
Mounjaro	Tirzepatide	129	19
Gabapentin	Gabapentin	111	35
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	106	30
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	102	17
Tramadol Hcl	Tramadol Hcl	100	46
Hydrochlorothiazide	Hydrochlorothiazide	98	29
Glimepiride	Glimepiride	97	33
Trazodone Hcl	Trazodone Hcl	96	28
Ozempic	Semaglutide	94	17
Ezetimibe	Ezetimibe	92	26
Irbesartan	Irbesartan	91	27
Eliquis	Apixaban	90	24
Metformin Hcl Er	Metformin Hcl	89	33
Azithromycin	Azithromycin	88	77
Furosemide	Furosemide	86	36
Synthroid	Levothyroxine Sodium	86	25
Alprazolam	Alprazolam	85	23
Bupropion Xl	Bupropion Hcl	85	24
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	74	38
Cefadroxil	Cefadroxil	70	64
Simvastatin	Simvastatin	69	19
Diazepam	Diazepam	68	19
Fluticasone Propionate	Fluticasone Propionate	68	21
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	67	52
Warfarin Sodium	Warfarin Sodium	62	15
Metoprolol Tartrate	Metoprolol Tartrate	58	19
Acetaminophen-Codeine	Acetaminophen With Codeine	57	suppressed
Sertraline Hcl	Sertraline Hcl	56	21
Fluocinonide	Fluocinonide	55	38
Montelukast Sodium	Montelukast Sodium	53	13
Pregabalin	Pregabalin	53	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	51	17
Xarelto	Rivaroxaban	50	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	49	14
Doxycycline Hyclate	Doxycycline Hyclate	48	44
Ondansetron Hcl	Ondansetron Hcl	46	25
Cefuroxime	Cefuroxime Axetil	45	42
Paxlovid	Nirmatrelvir/Ritonavir	45	45
Valacyclovir	Valacyclovir Hcl	40	21
Clopidogrel	Clopidogrel Bisulfate	38	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	37	31
Levofloxacin	Levofloxacin	37	30
Valsartan	Valsartan	37	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	34	14
Meclizine Hcl	Meclizine Hcl	34	23
Venlafaxine Hcl Er	Venlafaxine Hcl	34	suppressed
Carvedilol	Carvedilol	32	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	32	30
Spironolactone	Spironolactone	31	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	31	suppressed
Mupirocin	Mupirocin	30	22
Duloxetine Hcl	Duloxetine Hcl	28	suppressed
Potassium Chloride	Potassium Chloride	28	suppressed
Oxycodone Hcl	Oxycodone Hcl	27	suppressed
Ramipril	Ramipril	27	suppressed
Trulicity	Dulaglutide	27	suppressed
Amoxicillin	Amoxicillin	26	23
Atenolol	Atenolol	26	suppressed
Mirtazapine	Mirtazapine	26	11
Paroxetine Hcl	Paroxetine Hcl	26	suppressed
Cefpodoxime Proxetil	Cefpodoxime Proxetil	25	24
Fluoxetine Hcl	Fluoxetine Hcl	25	suppressed
Ketoconazole	Ketoconazole	25	21
Methylprednisolone	Methylprednisolone	25	23
Olmesartan Medoxomil	Olmesartan Medoxomil	24	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	24	suppressed
Ropinirole Hcl	Ropinirole Hcl	23	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	23	suppressed
Clonazepam	Clonazepam	22	11
Ibuprofen	Ibuprofen	21	11
Citalopram Hbr	Citalopram Hydrobromide	20	suppressed
Tobramycin	Tobramycin	20	20
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	20	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	19	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	17	suppressed
Celecoxib	Celecoxib	17	suppressed
Fenofibrate	Fenofibrate	17	suppressed
Lansoprazole	Lansoprazole	17	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	17	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	16	suppressed
Febuxostat	Febuxostat	16	suppressed
Hydrocortisone	Hydrocortisone	16	13
Myrbetriq	Mirabegron	16	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	16	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	15	suppressed
Azelastine Hcl	Azelastine Hcl	15	suppressed
Carbamazepine	Carbamazepine	15	suppressed
Diclofenac Sodium	Diclofenac Sodium	15	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	15	suppressed
Ventolin Hfa	Albuterol Sulfate	15	suppressed
Clindamycin Phosphate	Clindamycin Phosphate	14	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	14	suppressed
Latanoprost	Latanoprost	14	suppressed
Raloxifene Hcl	Raloxifene Hcl	14	suppressed
Viberzi	Eluxadoline	14	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	14	11
Combivent Respimat	Ipratropium/Albuterol Sulfate	13	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	13	suppressed
Breo Ellipta	Fluticasone/Vilanterol	12	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	12	suppressed
Sildenafil Citrate	Sildenafil Citrate	12	suppressed
Wegovy	Semaglutide	12	suppressed
Clonidine Hcl	Clonidine Hcl	11	suppressed
Ezetimibe-Simvastatin	Ezetimibe/Simvastatin	11	suppressed
Hydralazine Hcl	Hydralazine Hcl	11	suppressed
Januvia	Sitagliptin Phosphate	11	suppressed
Paxlovid (Eua)	Nirmatrelvir/Ritonavir	11	11
Solifenacin Succinate	Solifenacin Succinate	11	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	11	11
Synjardy	Empagliflozin/Metformin 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

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