Healthcare provider profile · identity verified

John M Ruddy, MD

Internal Medicine · CAMBRIDGE, MN · NPI 1235190497

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	661	194
Lisinopril	Lisinopril	545	147
Amlodipine Besylate	Amlodipine Besylate	491	129
Metoprolol Succinate	Metoprolol Succinate	424	123
Levothyroxine Sodium	Levothyroxine Sodium	374	104
Losartan Potassium	Losartan Potassium	362	107
Omeprazole	Omeprazole	336	108
Metformin Hcl	Metformin Hcl	318	86
Furosemide	Furosemide	273	87
Hydrochlorothiazide	Hydrochlorothiazide	268	81
Rosuvastatin Calcium	Rosuvastatin Calcium	245	71
Pantoprazole Sodium	Pantoprazole Sodium	237	67
Simvastatin	Simvastatin	233	59
Gabapentin	Gabapentin	227	64
Eliquis	Apixaban	214	54
Glipizide	Glipizide	194	50
Albuterol Sulfate Hfa	Albuterol Sulfate	191	69
Tamsulosin Hcl	Tamsulosin Hcl	176	57
Clopidogrel	Clopidogrel Bisulfate	172	51
Metoprolol Tartrate	Metoprolol Tartrate	170	47
Warfarin Sodium	Warfarin Sodium	156	49
Sertraline Hcl	Sertraline Hcl	144	35
Potassium Chloride	Potassium Chloride	141	45
Allopurinol	Allopurinol	136	39
Fluticasone Propionate	Fluticasone Propionate	136	54
Pravastatin Sodium	Pravastatin Sodium	133	40
Carvedilol	Carvedilol	121	33
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	121	32
Atenolol	Atenolol	116	30
Trazodone Hcl	Trazodone Hcl	113	34
Nitroglycerin	Nitroglycerin	79	54
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	76	13
Finasteride	Finasteride	73	20
Prednisone	Prednisone	73	31
Jardiance	Empagliflozin	72	24
Ventolin Hfa	Albuterol Sulfate	71	28
Xarelto	Rivaroxaban	70	16
Metformin Hcl Er	Metformin Hcl	69	21
Isosorbide Mononitrate Er	Isosorbide Mononitrate	68	22
Ozempic	Semaglutide	68	15
Duloxetine Hcl	Duloxetine Hcl	61	17
Famotidine	Famotidine	61	19
Tizanidine Hcl	Tizanidine Hcl	60	19
Ropinirole Hcl	Ropinirole Hcl	56	16
Spironolactone	Spironolactone	56	19
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	55	19
Fluoxetine Hcl	Fluoxetine Hcl	53	16
Hydralazine Hcl	Hydralazine Hcl	53	16
Ibuprofen	Ibuprofen	53	12
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	53	13
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	52	13
Lovastatin	Lovastatin	51	16
Montelukast Sodium	Montelukast Sodium	51	16
Tramadol Hcl	Tramadol Hcl	50	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	50	29
Escitalopram Oxalate	Escitalopram Oxalate	48	16
Pregabalin	Pregabalin	48	11
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	46	13
Carbidopa-Levodopa	Carbidopa/Levodopa	45	suppressed
Donepezil Hcl	Donepezil Hcl	45	14
Novolog Flexpen	Insulin Aspart	45	13
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	43	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	42	15
Hydroxyzine Hcl	Hydroxyzine Hcl	42	12
Oxybutynin Chloride Er	Oxybutynin Chloride	42	11
Doxycycline Hyclate	Doxycycline Hyclate	41	36
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	40	17
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	40	suppressed
Humalog Kwikpen U-100	Insulin Lispro	39	12
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	38	suppressed
Ezetimibe	Ezetimibe	38	11
Citalopram Hbr	Citalopram Hydrobromide	37	suppressed
Propranolol Hcl	Propranolol Hcl	36	11
Torsemide	Torsemide	36	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	35	suppressed
Paroxetine Hcl	Paroxetine Hcl	35	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	35	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	33	suppressed
Alendronate Sodium	Alendronate Sodium	32	12
Breo Ellipta	Fluticasone/Vilanterol	32	suppressed
Cephalexin	Cephalexin	31	26
Nystatin	Nystatin	30	16
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	30	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	29	suppressed
Chlorthalidone	Chlorthalidone	28	suppressed
Lorazepam	Lorazepam	28	suppressed
Levetiracetam	Levetiracetam	27	suppressed
Amoxicillin	Amoxicillin	26	12
Venlafaxine Hcl Er	Venlafaxine Hcl	26	suppressed
Propranolol Hcl Er	Propranolol Hcl	25	suppressed
Terazosin Hcl	Terazosin Hcl	25	suppressed
Mirtazapine	Mirtazapine	24	suppressed
Valsartan	Valsartan	23	suppressed
Klor-Con M20	Potassium Chloride	22	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	20
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	21	15
Novolin R	Insulin Regular, Human	21	suppressed
Spiriva Handihaler	Tiotropium Bromide	21	suppressed
Mounjaro	Tirzepatide	20	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	20	suppressed
Bumetanide	Bumetanide	19	suppressed
Buspirone Hcl	Buspirone Hcl	18	suppressed
Clonazepam	Clonazepam	18	suppressed
Levemir Flexpen	Insulin Detemir	18	suppressed
Celecoxib	Celecoxib	17	suppressed
Januvia	Sitagliptin Phosphate	17	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	17	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	16	suppressed
Dulera	Mometasone/Formoterol	16	suppressed
Humulin R U-500 Kwikpen	Insulin Regular, Human	16	suppressed
Digoxin	Digoxin	15	suppressed
Estradiol	Estradiol	15	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	15	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	15	suppressed
Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Diltiazem Hcl	Diltiazem Hcl	14	suppressed
Fenofibrate	Fenofibrate	14	suppressed
Insulin Aspart Flexpen	Insulin Aspart	14	suppressed
Irbesartan	Irbesartan	14	suppressed
Novolin N	Insulin Nph Human Isophane	14	suppressed
Symbicort	Budesonide/Formoterol Fumarate	14	suppressed
Baclofen	Baclofen	13	suppressed
Jantoven	Warfarin Sodium	13	suppressed
Methylprednisolone	Methylprednisolone	13	11
Midodrine Hcl	Midodrine Hcl	13	suppressed
Synthroid	Levothyroxine Sodium	13	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	12	suppressed
Balsalazide Disodium	Balsalazide Disodium	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	12	suppressed
Valacyclovir	Valacyclovir Hcl	12	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	12	suppressed
Vesicare	Solifenacin Succinate	12	suppressed
Acyclovir	Acyclovir	11	suppressed
Carbamazepine	Carbamazepine	11	suppressed
Fluocinonide	Fluocinonide	11	suppressed
Latanoprost	Latanoprost	11	suppressed
Methocarbamol	Methocarbamol	11	suppressed
Nadolol	Nadolol	11	suppressed
Topiramate	Topiramate	11	suppressed
Trulicity	Dulaglutide	11	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	11	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	11	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	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