Healthcare provider profile · identity verified

Daniel W Knef, PA

Physician Assistant · PLATTSBURGH, NY · NPI 1770645160

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	388	99
Amlodipine Besylate	Amlodipine Besylate	328	75
Omeprazole	Omeprazole	238	57
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	234	37
Gabapentin	Gabapentin	228	48
Metoprolol Succinate	Metoprolol Succinate	216	46
Albuterol Sulfate Hfa	Albuterol Sulfate	205	57
Metformin Hcl	Metformin Hcl	196	46
Levothyroxine Sodium	Levothyroxine Sodium	188	44
Losartan Potassium	Losartan Potassium	184	47
Pantoprazole Sodium	Pantoprazole Sodium	175	42
Lisinopril	Lisinopril	164	46
Pravastatin Sodium	Pravastatin Sodium	127	30
Furosemide	Furosemide	126	26
Eliquis	Apixaban	123	22
Jardiance	Empagliflozin	122	26
Trazodone Hcl	Trazodone Hcl	116	25
Duloxetine Hcl	Duloxetine Hcl	114	24
Hydrochlorothiazide	Hydrochlorothiazide	112	28
Tramadol Hcl	Tramadol Hcl	112	34
Famotidine	Famotidine	102	22
Tamsulosin Hcl	Tamsulosin Hcl	93	24
Celecoxib	Celecoxib	92	25
Montelukast Sodium	Montelukast Sodium	92	21
Potassium Chloride	Potassium Chloride	91	16
Baclofen	Baclofen	88	18
Rosuvastatin Calcium	Rosuvastatin Calcium	88	23
Fluticasone Propionate	Fluticasone Propionate	85	19
Metoprolol Tartrate	Metoprolol Tartrate	79	21
Simvastatin	Simvastatin	78	20
Ozempic	Semaglutide	76	12
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	74	20
Fluoxetine Hcl	Fluoxetine Hcl	73	11
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	72	12
Topiramate	Topiramate	69	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	69	13
Clonazepam	Clonazepam	67	18
Trulicity	Dulaglutide	65	13
Combivent Respimat	Ipratropium/Albuterol Sulfate	64	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	63	18
Citalopram Hbr	Citalopram Hydrobromide	61	11
Buspirone Hcl	Buspirone Hcl	60	12
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	59	14
Pregabalin	Pregabalin	55	14
Spironolactone	Spironolactone	53	suppressed
Bupropion Xl	Bupropion Hcl	52	suppressed
Morphine Sulfate Er	Morphine Sulfate	51	suppressed
Metformin Hcl Er	Metformin Hcl	50	suppressed
Symbicort	Budesonide/Formoterol Fumarate	48	12
Warfarin Sodium	Warfarin Sodium	48	suppressed
Benazepril Hcl	Benazepril Hcl	47	suppressed
Ramipril	Ramipril	47	13
Allopurinol	Allopurinol	44	suppressed
Atenolol	Atenolol	44	suppressed
Temazepam	Temazepam	44	suppressed
Alprazolam	Alprazolam	43	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	43	12
Methocarbamol	Methocarbamol	42	11
Sertraline Hcl	Sertraline Hcl	39	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	39	suppressed
Chlorthalidone	Chlorthalidone	36	suppressed
Incruse Ellipta	Umeclidinium Bromide	36	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	35	suppressed
Paroxetine Hcl	Paroxetine Hcl	35	suppressed
Prednisone	Prednisone	33	20
Tizanidine Hcl	Tizanidine Hcl	33	suppressed
Valsartan	Valsartan	32	suppressed
Alendronate Sodium	Alendronate Sodium	31	suppressed
Glipizide	Glipizide	31	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	29	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	29	suppressed
Diclofenac Sodium	Diclofenac Sodium	28	suppressed
Clonidine Hcl	Clonidine Hcl	27	suppressed
Clopidogrel	Clopidogrel Bisulfate	27	suppressed
Ibuprofen	Ibuprofen	27	suppressed
Oxycodone Hcl	Oxycodone Hcl	27	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	26	23
Esomeprazole Magnesium	Esomeprazole Magnesium	26	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	25	13
Divalproex Sodium	Divalproex Sodium	24	suppressed
Meloxicam	Meloxicam	24	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	24	suppressed
Torsemide	Torsemide	24	suppressed
Buprenorphine-Naloxone	Buprenorphine Hcl/Naloxone Hcl	23	suppressed
Levemir Flexpen	Insulin Detemir	23	suppressed
Novolog Flexpen	Insulin Aspart	22	suppressed
Tradjenta	Linagliptin	22	suppressed
Aripiprazole	Aripiprazole	21	suppressed
Donepezil Hcl	Donepezil Hcl	21	suppressed
Januvia	Sitagliptin Phosphate	21	suppressed
Meclizine Hcl	Meclizine Hcl	21	suppressed
Ranolazine Er	Ranolazine	21	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	20	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	20	19
Ezetimibe	Ezetimibe	20	suppressed
Nystatin	Nystatin	20	suppressed
Breyna	Budesonide/Formoterol Fumarate	19	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	19	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	19	suppressed
Valacyclovir	Valacyclovir Hcl	19	suppressed
Ventolin Hfa	Albuterol Sulfate	19	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	18	suppressed
Lovastatin	Lovastatin	17	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	16	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	16	suppressed
Fluconazole	Fluconazole	16	12
Isosorbide Mononitrate Er	Isosorbide Mononitrate	16	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	16	suppressed
Ropinirole Hcl	Ropinirole Hcl	16	suppressed
Rybelsus	Semaglutide	16	suppressed
Testosterone	Testosterone	16	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	16	suppressed
Azithromycin	Azithromycin	15	13
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	15	suppressed
Levetiracetam	Levetiracetam	15	suppressed
Lumigan	Bimatoprost	15	suppressed
Mirtazapine	Mirtazapine	15	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	15	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	15	14
Albuterol Sulfate	Albuterol Sulfate	14	suppressed
Carisoprodol	Carisoprodol	14	suppressed
Clindamycin Hcl	Clindamycin Hcl	14	11
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	14	suppressed
Metronidazole	Metronidazole	14	suppressed
Sucralfate	Sucralfate	14	suppressed
Buprenorphine Hcl	Buprenorphine Hcl	13	suppressed
Lorazepam	Lorazepam	13	11
Naproxen	Naproxen	13	suppressed
Oxcarbazepine	Oxcarbazepine	13	suppressed
Propranolol Hcl	Propranolol Hcl	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Synthroid	Levothyroxine Sodium	13	suppressed
Ultra-Fine Micro Pen Needle	Pen Needle, Diabetic	13	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	13	suppressed
Vascepa	Icosapent Ethyl	13	suppressed
Amiodarone Hcl	Amiodarone Hcl	12	suppressed
Azelastine Hcl	Azelastine Hcl	12	suppressed
Bupropion Hcl Sr	Bupropion Hcl	12	suppressed
Carvedilol	Carvedilol	12	suppressed
Darifenacin Er	Darifenacin Hydrobromide	12	suppressed
Desmopressin Acetate	Desmopressin Acetate	12	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	12	suppressed
Divalproex Sodium Er	Divalproex Sodium	12	suppressed
Fluticasone Propionate Hfa	Fluticasone Propionate	12	suppressed
Guanfacine Hcl Er	Guanfacine Hcl	12	suppressed
Nifedipine Er	Nifedipine	12	suppressed
Olanzapine	Olanzapine	12	suppressed
Ursodiol	Ursodiol	12	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	11	suppressed
Diltiazem 12hr Er	Diltiazem Hcl	11	suppressed
Easy Touch Alcohol Prep Pads	Alcohol Antiseptic Pads	11	suppressed
Enalapril Maleate	Enalapril Maleate	11	suppressed
Entresto	Sacubitril/Valsartan	11	suppressed
Glimepiride	Glimepiride	11	suppressed
Humalog Kwikpen U-100	Insulin Lispro	11	suppressed
Nexium	Esomeprazole Magnesium	11	suppressed
Qvar Redihaler	Beclomethasone Dipropionate	11	suppressed
Suboxone	Buprenorphine Hcl/Naloxone 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