Healthcare provider profile · identity verified

Trenton E Knewtson, DO

Family Practice · KAILUA KONA, HI · NPI 1982693503

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	520	185
Prednisone	Prednisone	449	269
Lisinopril	Lisinopril	427	154
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	386	75
Gabapentin	Gabapentin	361	103
Levothyroxine Sodium	Levothyroxine Sodium	347	124
Amlodipine Besylate	Amlodipine Besylate	282	116
Albuterol Sulfate Hfa	Albuterol Sulfate	251	95
Omeprazole	Omeprazole	250	101
Losartan Potassium	Losartan Potassium	245	94
Metformin Hcl	Metformin Hcl	238	82
Rosuvastatin Calcium	Rosuvastatin Calcium	211	82
Hydrochlorothiazide	Hydrochlorothiazide	206	81
Alprazolam	Alprazolam	203	49
Pantoprazole Sodium	Pantoprazole Sodium	197	79
Tramadol Hcl	Tramadol Hcl	176	51
Metoprolol Succinate	Metoprolol Succinate	153	58
Tamsulosin Hcl	Tamsulosin Hcl	137	52
Trazodone Hcl	Trazodone Hcl	136	54
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	131	65
Azithromycin	Azithromycin	129	104
Zolpidem Tartrate	Zolpidem Tartrate	129	24
Oxycodone Hcl	Oxycodone Hcl	122	19
Metoprolol Tartrate	Metoprolol Tartrate	114	49
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	112	32
Furosemide	Furosemide	108	45
Ibuprofen	Ibuprofen	108	35
Duloxetine Hcl	Duloxetine Hcl	106	38
Triamcinolone Acetonide	Triamcinolone Acetonide	103	48
Carvedilol	Carvedilol	96	37
Simvastatin	Simvastatin	94	34
Citalopram Hbr	Citalopram Hydrobromide	89	30
Naproxen	Naproxen	89	43
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	88	31
Fluticasone Propionate	Fluticasone Propionate	86	40
Eliquis	Apixaban	84	35
Montelukast Sodium	Montelukast Sodium	82	30
Hydroxyzine Hcl	Hydroxyzine Hcl	78	38
Sertraline Hcl	Sertraline Hcl	78	24
Allopurinol	Allopurinol	77	28
Glipizide	Glipizide	75	30
Meloxicam	Meloxicam	74	23
Clopidogrel	Clopidogrel Bisulfate	69	29
Famotidine	Famotidine	66	26
Quetiapine Fumarate	Quetiapine Fumarate	65	17
Oxybutynin Chloride	Oxybutynin Chloride	64	31
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	64	47
Temazepam	Temazepam	62	15
Tizanidine Hcl	Tizanidine Hcl	62	23
Baclofen	Baclofen	58	18
Ozempic	Semaglutide	58	21
Acetaminophen-Codeine	Acetaminophen With Codeine	57	11
Fluoxetine Hcl	Fluoxetine Hcl	56	16
Sildenafil Citrate	Sildenafil Citrate	56	20
Ondansetron Odt	Ondansetron	54	35
Alendronate Sodium	Alendronate Sodium	52	18
Diazepam	Diazepam	50	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	49	18
Metformin Hcl Er	Metformin Hcl	49	18
Potassium Chloride	Potassium Chloride	48	19
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	47	27
Mounjaro	Tirzepatide	47	11
Paroxetine Hcl	Paroxetine Hcl	47	17
Ketoconazole	Ketoconazole	45	30
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	45	19
Meclizine Hcl	Meclizine Hcl	44	20
Terazosin Hcl	Terazosin Hcl	44	21
Lantus	Insulin Glargine,hum.Rec.Anlog	43	13
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	41	13
Finasteride	Finasteride	39	15
Acyclovir	Acyclovir	37	17
Escitalopram Oxalate	Escitalopram Oxalate	37	17
Atenolol	Atenolol	36	15
Celecoxib	Celecoxib	36	11
Fluconazole	Fluconazole	36	25
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	35	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	33	12
Donepezil Hcl	Donepezil Hcl	33	11
Morphine Sulfate Er	Morphine Sulfate	33	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	32	12
Sumatriptan Succinate	Sumatriptan Succinate	32	suppressed
Diclofenac Sodium	Diclofenac Sodium	31	16
Spironolactone	Spironolactone	31	suppressed
Symbicort	Budesonide/Formoterol Fumarate	30	suppressed
Buspirone Hcl	Buspirone Hcl	29	11
Jardiance	Empagliflozin	29	11
Lorazepam	Lorazepam	28	suppressed
Pravastatin Sodium	Pravastatin Sodium	28	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	27	16
Glimepiride	Glimepiride	27	suppressed
Ropinirole Hcl	Ropinirole Hcl	27	16
Doxycycline Hyclate	Doxycycline Hyclate	26	17
Esomeprazole Magnesium	Esomeprazole Magnesium	26	11
Mupirocin	Mupirocin	26	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	26	25
Ventolin Hfa	Albuterol Sulfate	26	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	25	24
Ezetimibe	Ezetimibe	25	11
Primidone	Primidone	25	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	25	suppressed
Methocarbamol	Methocarbamol	24	suppressed
Methotrexate	Methotrexate Sodium	24	suppressed
Mirtazapine	Mirtazapine	24	suppressed
Ibu	Ibuprofen	23	suppressed
Xarelto	Rivaroxaban	23	suppressed
Glipizide Er	Glipizide	22	suppressed
Propranolol Hcl	Propranolol Hcl	22	suppressed
Topiramate	Topiramate	22	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	22	suppressed
Modafinil	Modafinil	21	suppressed
Nifedipine Er	Nifedipine	21	suppressed
Pregabalin	Pregabalin	20	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	20	suppressed
Estradiol	Estradiol	19	11
Glyburide	Glyburide	19	suppressed
Lamotrigine	Lamotrigine	19	suppressed
Amiodarone Hcl	Amiodarone Hcl	17	suppressed
Colchicine	Colchicine	17	suppressed
Januvia	Sitagliptin Phosphate	17	suppressed
Loperamide	Loperamide Hcl	17	suppressed
Lovastatin	Lovastatin	17	suppressed
Nebivolol Hcl	Nebivolol Hcl	17	suppressed
Amoxicillin	Amoxicillin	16	suppressed
Dropsafe Prep Pads	Alcohol Antiseptic Pads	16	suppressed
Memantine Hcl	Memantine Hcl	16	suppressed
Nystatin	Nystatin	16	12
Testosterone Cypionate	Testosterone Cypionate	16	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	16	suppressed
Hydralazine Hcl	Hydralazine Hcl	15	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	15	suppressed
Spiriva Respimat	Tiotropium Bromide	15	suppressed
Hydrocortisone	Hydrocortisone	14	suppressed
Ondansetron Hcl	Ondansetron Hcl	14	suppressed
Ranolazine Er	Ranolazine	14	suppressed
Rybelsus	Semaglutide	14	suppressed
Valacyclovir	Valacyclovir Hcl	14	14
Chlorthalidone	Chlorthalidone	13	suppressed
Dimethyl Fumarate	Dimethyl Fumarate	13	suppressed
Gemfibrozil	Gemfibrozil	13	suppressed
Nitroglycerin	Nitroglycerin	13	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	13	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	13	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	13	suppressed
Bupropion Xl	Bupropion Hcl	12	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	12	suppressed
Farxiga	Dapagliflozin Propanediol	12	suppressed
Humalog Kwikpen U-100	Insulin Lispro	12	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	12	suppressed
Morphine Sulfate	Morphine Sulfate	12	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	12	suppressed
Trulicity	Dulaglutide	12	suppressed
Armour Thyroid	Thyroid,pork	11	suppressed
Betamethasone Diprop Augmented	Betamethasone/Propylene Glyc	11	suppressed
Cephalexin	Cephalexin	11	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	11	11
Clobetasol Propionate	Clobetasol Propionate	11	suppressed
Imipramine Hcl	Imipramine Hcl	11	suppressed
Levetiracetam	Levetiracetam	11	suppressed
Lidocaine	Lidocaine	11	suppressed
Methylprednisolone	Methylprednisolone	11	suppressed
Neomycin-Polymyxin-Hc	Neomycin/Polymyxin B/Hydrocort	11	11
Olanzapine	Olanzapine	11	suppressed
Spiriva Handihaler	Tiotropium Bromide	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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