Healthcare provider profile · identity verified

Jon Martin Winjum, MD

Family Practice · OREGON CITY, OR · NPI 1730156639

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	1057	297
Levothyroxine Sodium	Levothyroxine Sodium	701	182
Lisinopril	Lisinopril	636	175
Losartan Potassium	Losartan Potassium	572	154
Amlodipine Besylate	Amlodipine Besylate	544	146
Metoprolol Succinate	Metoprolol Succinate	362	102
Hydrochlorothiazide	Hydrochlorothiazide	360	99
Gabapentin	Gabapentin	357	85
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	354	69
Eliquis	Apixaban	350	59
Metformin Hcl	Metformin Hcl	342	88
Trazodone Hcl	Trazodone Hcl	332	83
Tamsulosin Hcl	Tamsulosin Hcl	309	87
Omeprazole	Omeprazole	304	87
Furosemide	Furosemide	294	66
Simvastatin	Simvastatin	269	74
Potassium Chloride	Potassium Chloride	248	58
Oxycodone Hcl	Oxycodone Hcl	223	39
Alendronate Sodium	Alendronate Sodium	176	44
Fluoxetine Hcl	Fluoxetine Hcl	168	41
Pantoprazole Sodium	Pantoprazole Sodium	168	47
Metformin Hcl Er	Metformin Hcl	161	43
Metoprolol Tartrate	Metoprolol Tartrate	153	43
Atenolol	Atenolol	132	34
Albuterol Sulfate Hfa	Albuterol Sulfate	121	60
Rosuvastatin Calcium	Rosuvastatin Calcium	116	34
Jardiance	Empagliflozin	115	27
Citalopram Hbr	Citalopram Hydrobromide	110	25
Glimepiride	Glimepiride	109	33
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	104	27
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	102	28
Fluticasone Propionate	Fluticasone Propionate	100	24
Lovastatin	Lovastatin	98	32
Sertraline Hcl	Sertraline Hcl	96	26
Lorazepam	Lorazepam	92	23
Propranolol Hcl	Propranolol Hcl	91	20
Oxybutynin Chloride Er	Oxybutynin Chloride	88	20
Venlafaxine Hcl Er	Venlafaxine Hcl	88	16
Donepezil Hcl	Donepezil Hcl	84	19
Allopurinol	Allopurinol	82	25
Escitalopram Oxalate	Escitalopram Oxalate	82	25
Duloxetine Hcl	Duloxetine Hcl	81	18
Januvia	Sitagliptin Phosphate	81	15
Carvedilol	Carvedilol	78	22
Montelukast Sodium	Montelukast Sodium	76	23
Clopidogrel	Clopidogrel Bisulfate	74	19
Quetiapine Fumarate	Quetiapine Fumarate	69	18
Tramadol Hcl	Tramadol Hcl	67	15
Mirtazapine	Mirtazapine	66	11
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	66	48
Acyclovir	Acyclovir	60	14
Clonazepam	Clonazepam	57	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	57	17
Finasteride	Finasteride	56	17
Ozempic	Semaglutide	56	11
Meloxicam	Meloxicam	55	16
Morphine Sulfate Er	Morphine Sulfate	53	suppressed
Warfarin Sodium	Warfarin Sodium	53	17
Xarelto	Rivaroxaban	52	12
Memantine Hcl	Memantine Hcl	51	suppressed
Buspirone Hcl	Buspirone Hcl	49	12
Cephalexin	Cephalexin	48	36
Estradiol	Estradiol	48	15
Azithromycin	Azithromycin	45	43
Zolpidem Tartrate	Zolpidem Tartrate	44	11
Pravastatin Sodium	Pravastatin Sodium	43	16
Alprazolam	Alprazolam	41	16
Lantus	Insulin Glargine,hum.Rec.Anlog	41	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	41	14
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	41	12
Diazepam	Diazepam	40	15
Paroxetine Hcl	Paroxetine Hcl	39	11
Synthroid	Levothyroxine Sodium	35	12
Amitriptyline Hcl	Amitriptyline Hcl	34	suppressed
Spironolactone	Spironolactone	34	suppressed
Testosterone Cypionate	Testosterone Cypionate	34	suppressed
Torsemide	Torsemide	34	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	34	21
Prednisone	Prednisone	33	20
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	29	suppressed
Glipizide	Glipizide	29	suppressed
Famotidine	Famotidine	28	suppressed
Naproxen	Naproxen	28	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	25	suppressed
Bupropion Xl	Bupropion Hcl	25	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	25	suppressed
Fluconazole	Fluconazole	25	13
Nystatin	Nystatin	25	suppressed
Olanzapine	Olanzapine	25	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	25	suppressed
Valsartan	Valsartan	24	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	23	16
Nitrofurantoin	Nitrofurantoin Macrocrystal	23	suppressed
Bupropion Hcl Sr	Bupropion Hcl	21	suppressed
Eszopiclone	Eszopiclone	21	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	21	suppressed
Pregabalin	Pregabalin	21	suppressed
Aripiprazole	Aripiprazole	20	suppressed
Digoxin	Digoxin	20	suppressed
Promethazine Hcl	Promethazine Hcl	20	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	20	suppressed
Lansoprazole	Lansoprazole	19	suppressed
Testosterone	Testosterone	19	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	18	11
Fenofibrate	Fenofibrate	18	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	18	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	18	16
Venlafaxine Hcl	Venlafaxine Hcl	17	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	16	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	16	suppressed
Droplet Pen Needle	Pen Needle, Diabetic	16	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	16	suppressed
Ondansetron Odt	Ondansetron	16	suppressed
Amiodarone Hcl	Amiodarone Hcl	15	suppressed
Azelastine Hcl	Azelastine Hcl	15	suppressed
Chlorthalidone	Chlorthalidone	15	suppressed
Entresto	Sacubitril/Valsartan	15	suppressed
Ibuprofen	Ibuprofen	15	suppressed
Klor-Con M20	Potassium Chloride	15	suppressed
Methylprednisolone	Methylprednisolone	15	12
Rizatriptan	Rizatriptan Benzoate	15	suppressed
Sildenafil Citrate	Sildenafil Citrate	15	suppressed
Benazepril Hcl	Benazepril Hcl	14	suppressed
Ezetimibe	Ezetimibe	14	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	14	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	14	14
Trulicity	Dulaglutide	14	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	14	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	14	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	13	suppressed
Clobetasol Propionate	Clobetasol Propionate	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Loperamide	Loperamide Hcl	13	suppressed
Memantine Hcl Er	Memantine Hcl	13	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	13	suppressed
Alogliptin	Alogliptin Benzoate	12	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	12	suppressed
Butalb-Acetaminoph-Caff-Codein	Butalbit/Acetamin/Caff/Codeine	12	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	12	suppressed
Codeine Sulfate	Codeine Sulfate	12	suppressed
Doxepin Hcl	Doxepin Hcl	12	suppressed
Humalog	Insulin Lispro	12	suppressed
Levetiracetam	Levetiracetam	12	suppressed
Liothyronine Sodium	Liothyronine Sodium	12	suppressed
Metronidazole	Metronidazole	12	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	12	suppressed
Primidone	Primidone	12	suppressed
Tizanidine Hcl	Tizanidine Hcl	12	suppressed
Amoxicillin	Amoxicillin	11	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	11	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	11	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	11	suppressed
Lamotrigine	Lamotrigine	11	suppressed
Latanoprost	Latanoprost	11	suppressed
Methimazole	Methimazole	11	suppressed
Mounjaro	Tirzepatide	11	suppressed
Nitroglycerin	Nitroglycerin	11	11
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	11	suppressed
Rivastigmine	Rivastigmine	11	suppressed
Ropinirole Hcl	Ropinirole Hcl	11	suppressed
Solifenacin Succinate	Solifenacin Succinate	11	suppressed
Symbicort	Budesonide/Formoterol Fumarate	11	suppressed
Topiramate	Topiramate	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