Healthcare provider profile · identity verified

Christopher Irmen, MD

Allopathic & Osteopathic Physicians|Family Medicine · JAMESTOWN, ND · NPI 1093078479

Profile state: payments and partd 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

CMS Open Payments records show Christopher Irmen, MD received $47.59 in general payments during 2025 across 3 reported records.

Dexcom, Inc. accounted for 66.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 3 associated products.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Synthroid by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$47.59

3 reported records · 2 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Dexcom, Inc. Unresolved — no canonical attribution shown $31.4166.0%22025
ABBVIE INC. Unresolved — no canonical attribution shown $16.1834.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$47.593

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $31.41 2 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $16.18 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $16.18 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS

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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium405115
LisinoprilLisinopril34586
Amlodipine BesylateAmlodipine Besylate31880
Metoprolol SuccinateMetoprolol Succinate31778
Rosuvastatin CalciumRosuvastatin Calcium30379
Losartan PotassiumLosartan Potassium28885
Tamsulosin HclTamsulosin Hcl28270
Levothyroxine SodiumLevothyroxine Sodium26770
Metformin HclMetformin Hcl26652
Pantoprazole SodiumPantoprazole Sodium25160
OmeprazoleOmeprazole24461
HydrochlorothiazideHydrochlorothiazide20259
GabapentinGabapentin16554
FurosemideFurosemide14640
OzempicSemaglutide13423
Fluticasone PropionateFluticasone Propionate12256
EliquisApixaban11830
AllopurinolAllopurinol11730
ClopidogrelClopidogrel Bisulfate10821
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide10028
Trazodone HclTrazodone Hcl10024
Metoprolol TartrateMetoprolol Tartrate9927
Montelukast SodiumMontelukast Sodium9124
Metformin Hcl ErMetformin Hcl8725
CarvedilolCarvedilol7924
Sertraline HclSertraline Hcl7918
GlipizideGlipizide7619
XareltoRivaroxaban7316
SimvastatinSimvastatin7224
FinasterideFinasteride6721
Potassium ChloridePotassium Chloride6421
Warfarin SodiumWarfarin Sodium64suppressed
Pravastatin SodiumPravastatin Sodium6111
PregabalinPregabalin5911
LorazepamLorazepam5712
Trelegy ElliptaFluticasone/Umeclidin/Vilanter56suppressed
Duloxetine HclDuloxetine Hcl5419
Oxycodone HclOxycodone Hcl5216
Diltiazem 24hr Er (Cd)Diltiazem Hcl5117
Cyclobenzaprine HclCyclobenzaprine Hcl4826
GlimepirideGlimepiride48suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl46suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4529
JantovenWarfarin Sodium4513
SpironolactoneSpironolactone4415
Buspirone HclBuspirone Hcl4213
Lantus SolostarInsulin Glargine,hum.Rec.Anlog4218
MirtazapineMirtazapine41suppressed
Ventolin HfaAlbuterol Sulfate3914
Venlafaxine Hcl ErVenlafaxine Hcl38suppressed
JardianceEmpagliflozin37suppressed
Tizanidine HclTizanidine Hcl3711
Citalopram HbrCitalopram Hydrobromide36suppressed
EzetimibeEzetimibe3611
Fluoxetine HclFluoxetine Hcl36suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3627
Breo ElliptaFluticasone/Vilanterol35suppressed
Bupropion XlBupropion Hcl35suppressed
BaclofenBaclofen3413
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3411
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3311
Propranolol Hcl ErPropranolol Hcl33suppressed
AcyclovirAcyclovir32suppressed
Oxybutynin Chloride ErOxybutynin Chloride32suppressed
ValsartanValsartan31suppressed
Escitalopram OxalateEscitalopram Oxalate30suppressed
BumetanideBumetanide29suppressed
Enalapril MaleateEnalapril Maleate29suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate29suppressed
Tramadol HclTramadol Hcl2815
Pioglitazone HclPioglitazone Hcl27suppressed
CelecoxibCelecoxib2613
Doxazosin MesylateDoxazosin Mesylate26suppressed
KetoconazoleKetoconazole2616
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen26suppressed
PrednisonePrednisone2621
Tiotropium BromideTiotropium Bromide26suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
ChlorthalidoneChlorthalidone25suppressed
Tresiba Flextouch U-100Insulin Degludec25suppressed
AlprazolamAlprazolam24suppressed
Chlorhexidine GluconateChlorhexidine Gluconate24suppressed
LevetiracetamLevetiracetam23suppressed
Quetiapine FumarateQuetiapine Fumarate23suppressed
Ondansetron OdtOndansetron2214
TemazepamTemazepam22suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide22suppressed
Autoshield Duo Pen NeedlePen Needle,dual Safety,diabetc21suppressed
Donepezil HclDonepezil Hcl21suppressed
FamotidineFamotidine2111
FarxigaDapagliflozin Propanediol21suppressed
Hydralazine HclHydralazine Hcl21suppressed
Klor-Con M20Potassium Chloride21suppressed
Novolog FlexpenInsulin Aspart21suppressed
OlanzapineOlanzapine20suppressed
Clonidine HclClonidine Hcl19suppressed
Diltiazem 24hr ErDiltiazem Hcl19suppressed
Divalproex SodiumDivalproex Sodium19suppressed
Glipizide ErGlipizide19suppressed
Propranolol HclPropranolol Hcl19suppressed
Paroxetine HclParoxetine Hcl18suppressed
RisperidoneRisperidone18suppressed
AtenololAtenolol17suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol17suppressed
Sumatriptan SuccinateSumatriptan Succinate17suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr16suppressed
Hydroxyzine HclHydroxyzine Hcl16suppressed
Insulin Aspart FlexpenInsulin Aspart16suppressed
JanuviaSitagliptin Phosphate16suppressed
TrulicityDulaglutide16suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril15suppressed
ClonazepamClonazepam15suppressed
MethotrexateMethotrexate Sodium15suppressed
DigoxinDigoxin14suppressed
Doxycycline HyclateDoxycycline Hyclate1414
FluconazoleFluconazole14suppressed
KeppraLevetiracetam14suppressed
Levemir FlexpenInsulin Detemir14suppressed
NitroglycerinNitroglycerin1411
Ropinirole HclRopinirole Hcl14suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1412
Zolpidem TartrateZolpidem Tartrate14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
CalcitriolCalcitriol13suppressed
MeloxicamMeloxicam13suppressed
RivastigmineRivastigmine12suppressed
Tegretol XrCarbamazepine12suppressed
ZafirlukastZafirlukast12suppressed
Alendronate SodiumAlendronate Sodium11suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate11suppressed
LovastatinLovastatin11suppressed
PrevaliteCholestyramine11suppressed
Spiriva HandihalerTiotropium Bromide11suppressed
SynthroidLevothyroxine Sodium11suppressed
Theophylline ErTheophylline Anhydrous11suppressed

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.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $47.59 · 3 records Dexcom, Inc. Dexcom G6 Transmitter, QULIPTA, UBRELVY 1
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
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