Healthcare provider profile · identity verified

Conrad Harrison Knudson, M.D.

Family Practice · YORK, PA · NPI 1699773481

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	1154	329
Lisinopril	Lisinopril	611	172
Amlodipine Besylate	Amlodipine Besylate	549	161
Tamsulosin Hcl	Tamsulosin Hcl	417	119
Levothyroxine Sodium	Levothyroxine Sodium	410	108
Metoprolol Succinate	Metoprolol Succinate	381	108
Losartan Potassium	Losartan Potassium	344	97
Pantoprazole Sodium	Pantoprazole Sodium	326	96
Omeprazole	Omeprazole	320	97
Gabapentin	Gabapentin	297	86
Metformin Hcl Er	Metformin Hcl	292	82
Eliquis	Apixaban	264	58
Furosemide	Furosemide	259	80
Atenolol	Atenolol	225	62
Oxycodone Hcl	Oxycodone Hcl	217	25
Simvastatin	Simvastatin	206	64
Lorazepam	Lorazepam	201	44
Albuterol Sulfate Hfa	Albuterol Sulfate	200	60
Glipizide Er	Glipizide	196	57
Tramadol Hcl	Tramadol Hcl	172	39
Metoprolol Tartrate	Metoprolol Tartrate	165	45
Rosuvastatin Calcium	Rosuvastatin Calcium	162	51
Meloxicam	Meloxicam	158	60
Hydrochlorothiazide	Hydrochlorothiazide	154	48
Glipizide	Glipizide	148	42
Prednisone	Prednisone	143	94
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	123	12
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	119	37
Sertraline Hcl	Sertraline Hcl	119	35
Trazodone Hcl	Trazodone Hcl	113	34
Clonazepam	Clonazepam	112	23
Escitalopram Oxalate	Escitalopram Oxalate	108	33
Potassium Chloride	Potassium Chloride	108	33
Allopurinol	Allopurinol	107	30
Metformin Hcl	Metformin Hcl	105	30
Clopidogrel	Clopidogrel Bisulfate	99	32
Finasteride	Finasteride	96	21
Fluoxetine Hcl	Fluoxetine Hcl	91	18
Bupropion Xl	Bupropion Hcl	90	25
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	90	33
Duloxetine Hcl	Duloxetine Hcl	89	24
Citalopram Hbr	Citalopram Hydrobromide	87	25
Fluticasone Propionate	Fluticasone Propionate	86	22
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	80	13
Spironolactone	Spironolactone	79	27
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	79	16
Venlafaxine Hcl Er	Venlafaxine Hcl	79	20
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	77	14
Mirtazapine	Mirtazapine	74	14
Montelukast Sodium	Montelukast Sodium	73	23
Diclofenac Sodium	Diclofenac Sodium	72	21
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	72	18
Carvedilol	Carvedilol	71	21
Ozempic	Semaglutide	70	14
Pravastatin Sodium	Pravastatin Sodium	70	20
Amitriptyline Hcl	Amitriptyline Hcl	69	19
Jardiance	Empagliflozin	68	19
Alprazolam	Alprazolam	67	17
Synthroid	Levothyroxine Sodium	66	17
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	63	19
Zolpidem Tartrate	Zolpidem Tartrate	63	18
Warfarin Sodium	Warfarin Sodium	56	12
Alendronate Sodium	Alendronate Sodium	55	22
Celecoxib	Celecoxib	55	16
Glimepiride	Glimepiride	55	13
Propranolol Hcl	Propranolol Hcl	54	12
Xarelto	Rivaroxaban	54	14
Breo Ellipta	Fluticasone/Vilanterol	53	suppressed
Donepezil Hcl	Donepezil Hcl	53	13
Pioglitazone Hcl	Pioglitazone Hcl	53	16
Pregabalin	Pregabalin	53	suppressed
Azithromycin	Azithromycin	51	47
Famotidine	Famotidine	50	17
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	48	14
Buspirone Hcl	Buspirone Hcl	47	13
Oxybutynin Chloride Er	Oxybutynin Chloride	47	16
Hydroxyzine Hcl	Hydroxyzine Hcl	46	13
Paroxetine Hcl	Paroxetine Hcl	45	13
Quetiapine Fumarate	Quetiapine Fumarate	43	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	41	25
Rybelsus	Semaglutide	41	11
Triamcinolone Acetonide	Triamcinolone Acetonide	41	29
Jantoven	Warfarin Sodium	40	suppressed
Meclizine Hcl	Meclizine Hcl	39	17
Methylprednisolone	Methylprednisolone	39	25
Valacyclovir	Valacyclovir Hcl	38	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	37	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	37	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	36	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	35	23
Fentanyl	Fentanyl	34	suppressed
Tizanidine Hcl	Tizanidine Hcl	34	12
Ventolin Hfa	Albuterol Sulfate	34	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	31	suppressed
Risperidone	Risperidone	31	suppressed
Valsartan	Valsartan	31	11
Baclofen	Baclofen	30	suppressed
Levetiracetam	Levetiracetam	30	suppressed
Memantine Hcl	Memantine Hcl	29	suppressed
Lamotrigine	Lamotrigine	28	suppressed
Ropinirole Hcl	Ropinirole Hcl	28	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	27	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Nifedipine Er	Nifedipine	27	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	27	suppressed
Diazepam	Diazepam	26	suppressed
Testosterone Cypionate	Testosterone Cypionate	26	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	25	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	25	suppressed
Ibuprofen	Ibuprofen	25	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	25	suppressed
Trulicity	Dulaglutide	25	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	24	21
Amiodarone Hcl	Amiodarone Hcl	23	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	23	12
Hydralazine Hcl	Hydralazine Hcl	23	suppressed
Morphine Sulfate	Morphine Sulfate	23	suppressed
Enalapril Maleate	Enalapril Maleate	22	suppressed
Ondansetron Odt	Ondansetron	22	suppressed
Sucralfate	Sucralfate	22	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	21	suppressed
Dofetilide	Dofetilide	21	suppressed
Naproxen	Naproxen	21	suppressed
Novolog Flexpen	Insulin Aspart	21	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	20	20
Mounjaro	Tirzepatide	19	suppressed
Nabumetone	Nabumetone	19	suppressed
Nitroglycerin	Nitroglycerin	19	12
Levofloxacin	Levofloxacin	18	16
Morphine Sulfate Er	Morphine Sulfate	18	suppressed
Terbinafine Hcl	Terbinafine Hcl	18	17
Carbidopa-Levodopa	Carbidopa/Levodopa	17	suppressed
Ezetimibe	Ezetimibe	17	suppressed
Klor-Con M20	Potassium Chloride	17	suppressed
Bupropion Hcl Sr	Bupropion Hcl	16	suppressed
Glipizide-Metformin	Glipizide/Metformin Hcl	16	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	16	suppressed
Ondansetron Hcl	Ondansetron Hcl	16	suppressed
Amoxicillin	Amoxicillin	15	15
Januvia	Sitagliptin Phosphate	15	suppressed
Klor-Con M10	Potassium Chloride	15	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	15	suppressed
Primidone	Primidone	15	suppressed
Brilinta	Ticagrelor	14	suppressed
Clonidine Hcl	Clonidine Hcl	14	suppressed
Dutasteride	Dutasteride	14	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	14	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	13	suppressed
Bethanechol Chloride	Bethanechol Chloride	13	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	13	suppressed
Lovastatin	Lovastatin	13	suppressed
Propranolol Hcl Er	Propranolol Hcl	13	suppressed
Flecainide Acetate	Flecainide Acetate	12	suppressed
Levemir Flexpen	Insulin Detemir	12	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	12	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	12	suppressed
Risperidone Odt	Risperidone	12	suppressed
Testosterone	Testosterone	12	suppressed
Tradjenta	Linagliptin	12	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	12	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	12	suppressed
Benazepril Hcl	Benazepril Hcl	11	suppressed
Cephalexin	Cephalexin	11	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	11	suppressed
Divalproex Sodium	Divalproex Sodium	11	suppressed
Fluconazole	Fluconazole	11	suppressed
Insulin Syringe	Syringe And Needle,insulin,1ml	11	suppressed
Irbesartan	Irbesartan	11	suppressed
Methadone Hcl	Methadone Hcl	11	suppressed
Nexium	Esomeprazole Magnesium	11	suppressed
Novolog Mix 70-30 Flexpen	Insulin Aspart Prot/Insuln Asp	11	suppressed
Ultra-Fine Micro Pen Needle	Pen Needle, Diabetic	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