Healthcare provider profile · identity verified

John Michael Tinjum, M.D.

Internal Medicine · MOORHEAD, MN · NPI 1093953366

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	932	239
Lisinopril	Lisinopril	591	162
Amlodipine Besylate	Amlodipine Besylate	555	152
Rosuvastatin Calcium	Rosuvastatin Calcium	516	151
Metoprolol Succinate	Metoprolol Succinate	466	124
Omeprazole	Omeprazole	459	133
Losartan Potassium	Losartan Potassium	420	125
Simvastatin	Simvastatin	408	118
Levothyroxine Sodium	Levothyroxine Sodium	379	90
Hydrochlorothiazide	Hydrochlorothiazide	321	85
Eliquis	Apixaban	311	68
Tamsulosin Hcl	Tamsulosin Hcl	291	88
Furosemide	Furosemide	245	76
Gabapentin	Gabapentin	234	66
Metformin Hcl	Metformin Hcl	212	57
Carvedilol	Carvedilol	211	62
Pantoprazole Sodium	Pantoprazole Sodium	197	60
Metoprolol Tartrate	Metoprolol Tartrate	190	61
Metformin Hcl Er	Metformin Hcl	185	56
Glipizide Er	Glipizide	179	47
Sertraline Hcl	Sertraline Hcl	173	44
Finasteride	Finasteride	163	40
Allopurinol	Allopurinol	153	48
Potassium Chloride	Potassium Chloride	137	40
Trazodone Hcl	Trazodone Hcl	130	44
Clopidogrel	Clopidogrel Bisulfate	129	35
Warfarin Sodium	Warfarin Sodium	129	48
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	127	32
Tramadol Hcl	Tramadol Hcl	120	30
Famotidine	Famotidine	119	22
Escitalopram Oxalate	Escitalopram Oxalate	116	37
Spironolactone	Spironolactone	116	32
Fluticasone Propionate	Fluticasone Propionate	115	40
Ozempic	Semaglutide	114	22
Lorazepam	Lorazepam	113	28
Pravastatin Sodium	Pravastatin Sodium	108	29
Citalopram Hbr	Citalopram Hydrobromide	103	23
Donepezil Hcl	Donepezil Hcl	103	17
Oxycodone Hcl	Oxycodone Hcl	103	27
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	97	30
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	97	21
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	94	27
Duloxetine Hcl	Duloxetine Hcl	88	25
Montelukast Sodium	Montelukast Sodium	81	22
Zolpidem Tartrate	Zolpidem Tartrate	76	24
Alendronate Sodium	Alendronate Sodium	70	22
Jardiance	Empagliflozin	70	18
Fluoxetine Hcl	Fluoxetine Hcl	69	19
Nifedipine Er	Nifedipine	69	11
Xarelto	Rivaroxaban	69	18
Alprazolam	Alprazolam	64	17
Bupropion Xl	Bupropion Hcl	62	16
Atenolol	Atenolol	57	16
Prednisone	Prednisone	56	33
Mirtazapine	Mirtazapine	55	17
Pregabalin	Pregabalin	53	11
Glipizide	Glipizide	52	12
Januvia	Sitagliptin Phosphate	52	14
Albuterol Sulfate Hfa	Albuterol Sulfate	51	31
Doxycycline Hyclate	Doxycycline Hyclate	48	18
Ventolin Hfa	Albuterol Sulfate	48	16
Isosorbide Mononitrate Er	Isosorbide Mononitrate	47	13
Nitroglycerin	Nitroglycerin	47	36
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	44	18
Oxybutynin Chloride	Oxybutynin Chloride	42	12
Ropinirole Hcl	Ropinirole Hcl	42	suppressed
Bumetanide	Bumetanide	39	16
Clonazepam	Clonazepam	39	11
Rybelsus	Semaglutide	39	suppressed
Flecainide Acetate	Flecainide Acetate	38	suppressed
Topiramate	Topiramate	38	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	38	13
Amitriptyline Hcl	Amitriptyline Hcl	37	suppressed
Propranolol Hcl	Propranolol Hcl	37	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	35	13
Triamcinolone Acetonide	Triamcinolone Acetonide	35	20
Venlafaxine Hcl Er	Venlafaxine Hcl	35	suppressed
Ondansetron Hcl	Ondansetron Hcl	34	11
Ezetimibe	Ezetimibe	33	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	33	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	33	12
Tizanidine Hcl	Tizanidine Hcl	33	suppressed
Torsemide	Torsemide	32	11
Celecoxib	Celecoxib	30	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	29	suppressed
Entresto	Sacubitril/Valsartan	29	suppressed
Buspirone Hcl	Buspirone Hcl	28	suppressed
Clonidine Hcl	Clonidine Hcl	28	suppressed
Cephalexin	Cephalexin	27	13
Chlorthalidone	Chlorthalidone	27	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	27	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	27	11
Valacyclovir	Valacyclovir Hcl	27	13
Calcitriol	Calcitriol	26	suppressed
Hydralazine Hcl	Hydralazine Hcl	26	11
Memantine Hcl	Memantine Hcl	26	suppressed
Benazepril Hcl	Benazepril Hcl	25	suppressed
Phenytoin	Phenytoin	25	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	25	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	24	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	24	suppressed
Levetiracetam	Levetiracetam	23	suppressed
Naproxen	Naproxen	23	suppressed
Tresiba Flextouch U-200	Insulin Degludec	23	suppressed
Diazepam	Diazepam	22	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	22	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	22	suppressed
Lansoprazole	Lansoprazole	22	suppressed
Terazosin Hcl	Terazosin Hcl	22	suppressed
Amoxicillin	Amoxicillin	20	15
Lactulose	Lactulose	20	suppressed
Bupropion Hcl Sr	Bupropion Hcl	19	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	19	suppressed
Diclofenac Sodium	Diclofenac Sodium	19	11
Temazepam	Temazepam	19	suppressed
Amiodarone Hcl	Amiodarone Hcl	18	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	18	suppressed
Gemfibrozil	Gemfibrozil	18	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	18	suppressed
Labetalol Hcl	Labetalol Hcl	18	suppressed
Loperamide	Loperamide Hcl	18	suppressed
Midodrine Hcl	Midodrine Hcl	18	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	18	suppressed
Divalproex Sodium	Divalproex Sodium	17	suppressed
Glimepiride	Glimepiride	17	suppressed
Meloxicam	Meloxicam	17	suppressed
Potassium Citrate Er	Potassium Citrate	17	suppressed
Arnuity Ellipta	Fluticasone Furoate	16	suppressed
Baclofen	Baclofen	16	suppressed
Fluconazole	Fluconazole	16	12
Novolog Flexpen	Insulin Aspart	16	suppressed
Paroxetine Hcl	Paroxetine Hcl	16	suppressed
Acyclovir	Acyclovir	15	suppressed
Azithromycin	Azithromycin	15	15
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Digoxin	Digoxin	15	suppressed
Farxiga	Dapagliflozin Propanediol	15	suppressed
Fentanyl	Fentanyl	15	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	15	suppressed
Klor-Con M20	Potassium Chloride	15	suppressed
Nystatin	Nystatin	15	suppressed
Sotalol	Sotalol Hcl	15	suppressed
Synthroid	Levothyroxine Sodium	15	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	15	suppressed
Verapamil Er	Verapamil Hcl	15	suppressed
Breo Ellipta	Fluticasone/Vilanterol	14	suppressed
Lovastatin	Lovastatin	14	suppressed
Meclizine Hcl	Meclizine Hcl	14	suppressed
Neomycin-Polymyxin-Hydrocort	Neomycin/Polymyxin B/Hydrocort	14	suppressed
Ondansetron Odt	Ondansetron	14	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	13	suppressed
Hydrocortisone	Hydrocortisone	13	suppressed
Trulicity	Dulaglutide	13	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	12	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	12	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	12	suppressed
Klor-Con M10	Potassium Chloride	12	suppressed
Metronidazole	Metronidazole	12	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	12	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	11	suppressed
Dutasteride	Dutasteride	11	suppressed
Humalog Kwikpen U-100	Insulin Lispro	11	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	11	suppressed
Valsartan	Valsartan	11	suppressed
Xtampza Er	Oxycodone Myristate	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