Healthcare provider profile · identity verified

John Frederick Stock, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · MORRIS, MN · NPI 1932207545

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 John Frederick Stock, M.D. received $45.20 in general payments during 2025 across 2 reported records.

Abbott Laboratories accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Payment overview · 2025

General Payments

$45.20

2 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
Abbott Laboratories Unresolved — no canonical attribution shown $45.20100.0%22025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$45.202

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
ASSURITY
Normalized: assurity
Device Abbott Laboratories $24.82 1 2025
Source payment records
GALLANT
Normalized: gallant
Device Abbott Laboratories $20.38 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 Sodium22753
Metoprolol TartrateMetoprolol Tartrate22358
SimvastatinSimvastatin21253
Losartan PotassiumLosartan Potassium20951
LisinoprilLisinopril19952
SpironolactoneSpironolactone16836
XareltoRivaroxaban15732
OmeprazoleOmeprazole13430
Amlodipine BesylateAmlodipine Besylate11728
Tamsulosin HclTamsulosin Hcl11227
Nebivolol HclNebivolol Hcl11023
Metoprolol SuccinateMetoprolol Succinate10929
AllopurinolAllopurinol10526
Atorvastatin CalciumAtorvastatin Calcium9725
Pantoprazole SodiumPantoprazole Sodium8222
FurosemideFurosemide7922
SotalolSotalol Hcl7520
ClopidogrelClopidogrel Bisulfate7024
Nifedipine ErNifedipine7016
Rosuvastatin CalciumRosuvastatin Calcium7023
OzempicSemaglutide69suppressed
Amiodarone HclAmiodarone Hcl6616
EzetimibeEzetimibe6516
DigoxinDigoxin5712
PrednisonePrednisone5715
Metformin Hcl ErMetformin Hcl55suppressed
Sertraline HclSertraline Hcl4813
EntrestoSacubitril/Valsartan47suppressed
JantovenWarfarin Sodium4611
Metformin HclMetformin Hcl46suppressed
BumetanideBumetanide4516
HydrochlorothiazideHydrochlorothiazide45suppressed
Repatha SureclickEvolocumab44suppressed
FarxigaDapagliflozin Propanediol42suppressed
CarvedilolCarvedilol40suppressed
EliquisApixaban40suppressed
Enalapril MaleateEnalapril Maleate40suppressed
JardianceEmpagliflozin40suppressed
FamotidineFamotidine3613
Escitalopram OxalateEscitalopram Oxalate35suppressed
TrulicityDulaglutide35suppressed
AmoxicillinAmoxicillin3423
GlipizideGlipizide34suppressed
GabapentinGabapentin33suppressed
Montelukast SodiumMontelukast Sodium33suppressed
MirtazapineMirtazapine32suppressed
Duloxetine HclDuloxetine Hcl31suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate30suppressed
Trazodone HclTrazodone Hcl30suppressed
MethotrexateMethotrexate Sodium28suppressed
Balsalazide DisodiumBalsalazide Disodium27suppressed
LubiprostoneLubiprostone26suppressed
NitroglycerinNitroglycerin2620
Warfarin SodiumWarfarin Sodium26suppressed
RybelsusSemaglutide24suppressed
Buspirone HclBuspirone Hcl23suppressed
Doxazosin MesylateDoxazosin Mesylate23suppressed
Donepezil HclDonepezil Hcl22suppressed
Tramadol HclTramadol Hcl20suppressed
Fluticasone PropionateFluticasone Propionate19suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
FinasterideFinasteride17suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate17suppressed
Venlafaxine Hcl ErVenlafaxine Hcl17suppressed
CefuroximeCefuroxime Axetil1612
EnbrelEtanercept15suppressed
Ipratropium BromideIpratropium Bromide15suppressed
MounjaroTirzepatide15suppressed
AzithromycinAzithromycin1413
Citalopram HbrCitalopram Hydrobromide14suppressed
GlimepirideGlimepiride14suppressed
Fludrocortisone AcetateFludrocortisone Acetate13suppressed
LevofloxacinLevofloxacin1311
Paroxetine HclParoxetine Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
Propranolol Hcl ErPropranolol Hcl13suppressed
Ranolazine ErRanolazine12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
Glipizide ErGlipizide11suppressed
TorsemideTorsemide11suppressed

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 $45.20 · 2 records Abbott Laboratories ASSURITY, GALLANT
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