Healthcare provider profile · identity verified

Gregory J Hanson, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Geriatric Medicine · ROCHESTER, MN · NPI 1598742306

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 Gregory J Hanson, M.D. received $18.03 in general payments during 2025 across 1 reported records.

Calyxo, Inc. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Payment overview · 2025

General Payments

$18.03

1 reported records · 1 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
Calyxo, Inc. Unresolved — no canonical attribution shown $18.03100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$18.031

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
CVAC ASPIRATION SYSTEM
Normalized: cvac aspiration system
Device Calyxo, Inc. $18.03 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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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
Levothyroxine SodiumLevothyroxine Sodium57046
EliquisApixaban43332
Atorvastatin CalciumAtorvastatin Calcium43151
Metoprolol SuccinateMetoprolol Succinate22027
Pantoprazole SodiumPantoprazole Sodium21426
FurosemideFurosemide19924
LisinoprilLisinopril19520
Amlodipine BesylateAmlodipine Besylate19023
TorsemideTorsemide18027
Metoprolol TartrateMetoprolol Tartrate17823
Warfarin SodiumWarfarin Sodium159suppressed
Sertraline HclSertraline Hcl15118
GabapentinGabapentin14218
Tamsulosin HclTamsulosin Hcl12518
Potassium ChloridePotassium Chloride12420
LevetiracetamLevetiracetam10314
Duloxetine HclDuloxetine Hcl9313
AllopurinolAllopurinol8811
Rosuvastatin CalciumRosuvastatin Calcium87suppressed
Losartan PotassiumLosartan Potassium8612
SimvastatinSimvastatin70suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog68suppressed
MirtazapineMirtazapine68suppressed
Bupropion XlBupropion Hcl67suppressed
CarvedilolCarvedilol67suppressed
Quetiapine FumarateQuetiapine Fumarate6514
Metformin HclMetformin Hcl63suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl61suppressed
JardianceEmpagliflozin60suppressed
SpironolactoneSpironolactone58suppressed
CefadroxilCefadroxil53suppressed
XareltoRivaroxaban46suppressed
Divalproex SodiumDivalproex Sodium44suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate44suppressed
OlanzapineOlanzapine41suppressed
LamotrigineLamotrigine39suppressed
Amiodarone HclAmiodarone Hcl38suppressed
Metformin Hcl ErMetformin Hcl38suppressed
BaclofenBaclofen36suppressed
Escitalopram OxalateEscitalopram Oxalate36suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate35suppressed
Buspirone HclBuspirone Hcl34suppressed
Citalopram HbrCitalopram Hydrobromide34suppressed
KlayestaNystatin3414
Donepezil HclDonepezil Hcl33suppressed
OmeprazoleOmeprazole30suppressed
Carbidopa-LevodopaCarbidopa/Levodopa29suppressed
ClopidogrelClopidogrel Bisulfate28suppressed
Fluoxetine HclFluoxetine Hcl28suppressed
Novolin N FlexpenInsulin Nph Human Isophane28suppressed
SulfasalazineSulfasalazine28suppressed
FinasterideFinasteride26suppressed
HydrochlorothiazideHydrochlorothiazide26suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl26suppressed
Doxycycline MonohydrateDoxycycline Monohydrate25suppressed
AripiprazoleAripiprazole24suppressed
Insulin Aspart FlexpenInsulin Aspart24suppressed
NystatinNystatin24suppressed
TrulicityDulaglutide23suppressed
FamotidineFamotidine22suppressed
Paroxetine HclParoxetine Hcl22suppressed
PrednisonePrednisone22suppressed
Trospium ChlorideTrospium Chloride22suppressed
LidocaineLidocaine21suppressed
Montelukast SodiumMontelukast Sodium21suppressed
Alendronate SodiumAlendronate Sodium19suppressed
ChlorthalidoneChlorthalidone19suppressed
LatanoprostLatanoprost19suppressed
Nortriptyline HclNortriptyline Hcl19suppressed
Triamcinolone AcetonideTriamcinolone Acetonide19suppressed
BreynaBudesonide/Formoterol Fumarate18suppressed
DigoxinDigoxin17suppressed
Ipratropium BromideIpratropium Bromide17suppressed
LubiprostoneLubiprostone17suppressed
Trazodone HclTrazodone Hcl17suppressed
KetoconazoleKetoconazole16suppressed
MethotrexateMethotrexate Sodium16suppressed
Novolog FlexpenInsulin Aspart16suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
Ketorolac TromethamineKetorolac Tromethamine15suppressed
NystopNystatin15suppressed
AzathioprineAzathioprine14suppressed
GemfibrozilGemfibrozil14suppressed
LokelmaSodium Zirconium Cyclosilicate14suppressed
Memantine HclMemantine Hcl14suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog13suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium13suppressed
Isosorbide DinitrateIsosorbide Dinitrate13suppressed
LovastatinLovastatin13suppressed
Spiriva RespimatTiotropium Bromide13suppressed
Benztropine MesylateBenztropine Mesylate12suppressed
EstradiolEstradiol12suppressed
Hydroxyzine HclHydroxyzine Hcl12suppressed
Methenamine HippurateMethenamine Hippurate12suppressed
RisperidoneRisperidone12suppressed
CefdinirCefdinir11suppressed
FarxigaDapagliflozin Propanediol11suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol11suppressed
MethocarbamolMethocarbamol11suppressed
Norethindrone AcetateNorethindrone Acetate11suppressed
Ondansetron HclOndansetron Hcl11suppressed

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 $18.03 · 1 records Calyxo, Inc. CVAC ASPIRATION SYSTEM
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