Healthcare provider profile · identity verified

John G Gustafson, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Interventional Cardiology · KALAMAZOO, MI · NPI 1992777437

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 G Gustafson, MD received $4,374.22 in general payments during 2025 across 74 reported records.

Abbott Laboratories accounted for 61.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 26 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Entresto, Jardiance.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Jardiance by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 544 claims for Eliquis by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 104 claims for Entresto by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 544 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$4,374.22

74 reported records · 16 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 $2,668.8861.0%132025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $285.926.5%192025
Boston Scientific Corporation Unresolved — no canonical attribution shown $200.264.6%62025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$199.614.6%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $179.984.1%42025
PFIZER INC. Unresolved — no canonical attribution shown $168.023.8%62025
Stryker Corporation Unresolved — no canonical attribution shown $163.213.7%22025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $106.322.4%52025
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) Unresolved — no canonical attribution shown $105.502.4%62025
CORDIS US CORP. Unresolved — no canonical attribution shown $80.941.9%12025
BridgeBio Pharma, Inc. Unresolved — no canonical attribution shown $72.741.7%32025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $50.991.2%32025
Chiesi USA, Inc. Unresolved — no canonical attribution shown $32.250.7%12025
Actelion Pharmaceuticals US, Inc. Unresolved — no canonical attribution shown $23.550.5%12025
Becton, Dickinson and Company Unresolved — no canonical attribution shown $22.210.5%12025
Amgen Inc. Unresolved — no canonical attribution shown $13.840.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,650.0670
Travel and Lodging$1,724.164

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
OPTIS
Normalized: optis
Device Abbott Laboratories $2,475.77 11 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $285.92 19 2025
Source payment records
SYMPLICITY G3
Normalized: symplicity g3
Device Medtronic, Inc. $199.61 2 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C., PFIZER INC. $187.64 8 2025
Source payment records
ULTREON
Normalized: ultreon
Device Abbott Laboratories $182.56 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $179.98 4 2025
Source payment records
CT THROMBECTOMY SYSTEM KIT
Normalized: ct thrombectomy system kit
Device Stryker Corporation $163.21 2 2025
Source payment records
FLOWTRIEVER CATHETER, S
Normalized: flowtriever catheter s
Device Stryker Corporation $163.21 2 2025
Source payment records
LifeVest
Normalized: lifevest
Device ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $105.50 6 2025
Source payment records
WATCHMAN FLX
Normalized: watchman flx
Device Boston Scientific Corporation $101.11 5 2025
Source payment records
General - Thrombectomy
Normalized: general thrombectomy
Device Boston Scientific Corporation $99.15 1 2025
Source payment records
MYNXGRIP
Normalized: mynxgrip
Device CORDIS US CORP. $80.94 1 2025
Source payment records
Attruby
Normalized: attruby
Drug BridgeBio Pharma, Inc. $72.74 3 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $50.99 3 2025
Source payment records
ENTRESTO
Normalized: entresto
Drug Novartis Pharmaceuticals Corporation $41.16 2 2025
Source payment records
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $33.55 1 2025
Source payment records
CLEVIPREX
Normalized: cleviprex
Drug Chiesi USA, Inc. $32.25 1 2025
Source payment records
KENGREAL
Normalized: kengreal
Drug Chiesi USA, Inc. $32.25 1 2025
Source payment records
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $29.03 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $24.12 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $24.12 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $24.12 1 2025
Source payment records
OPSYNVI
Normalized: opsynvi
Drug Actelion Pharmaceuticals US, Inc. $23.55 1 2025
Source payment records
RotarexS 6 F x 135 cm
Normalized: rotarexs 6 f x 135 cm
Device Becton, Dickinson and Company $22.21 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $13.84 1 2025
Source payment records
CARDIOMEMS
Normalized: cardiomems
Device Abbott Laboratories $10.55 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
ELIQUIS
eliquis
2025 Eliquis 2024 544 exact normalized Medicare Part D
ENTRESTO
entresto
2025 Entresto 2024 104 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 17 exact normalized Medicare Part D

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
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
17 11
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
544 152
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
104 23
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
544 152

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
Metoprolol TartrateMetoprolol Tartrate667211
Atorvastatin CalciumAtorvastatin Calcium584190
Metoprolol SuccinateMetoprolol Succinate565201
EliquisApixaban544152
Isosorbide Mononitrate ErIsosorbide Mononitrate438136
ClopidogrelClopidogrel Bisulfate365120
LisinoprilLisinopril29991
NitroglycerinNitroglycerin260153
Amlodipine BesylateAmlodipine Besylate25976
CarvedilolCarvedilol25980
Ranolazine ErRanolazine22871
Losartan PotassiumLosartan Potassium20075
XareltoRivaroxaban19441
FurosemideFurosemide19061
SpironolactoneSpironolactone16151
Rosuvastatin CalciumRosuvastatin Calcium16052
HydrochlorothiazideHydrochlorothiazide12236
EzetimibeEzetimibe11833
Diltiazem 24hr Er (Cd)Diltiazem Hcl11236
Warfarin SodiumWarfarin Sodium11136
EntrestoSacubitril/Valsartan10423
SimvastatinSimvastatin9634
Repatha SureclickEvolocumab9014
Hydralazine HclHydralazine Hcl8531
AtenololAtenolol7123
Amiodarone HclAmiodarone Hcl5822
Enalapril MaleateEnalapril Maleate5616
BumetanideBumetanide5218
Prasugrel HclPrasugrel Hcl5014
Pantoprazole SodiumPantoprazole Sodium4216
JantovenWarfarin Sodium39suppressed
DigoxinDigoxin34suppressed
Potassium ChloridePotassium Chloride3212
Nebivolol HclNebivolol Hcl28suppressed
EplerenoneEplerenone27suppressed
ChlorthalidoneChlorthalidone26suppressed
Midodrine HclMidodrine Hcl23suppressed
Diltiazem HclDiltiazem Hcl21suppressed
Pravastatin SodiumPravastatin Sodium21suppressed
TorsemideTorsemide21suppressed
FenofibrateFenofibrate20suppressed
Flecainide AcetateFlecainide Acetate20suppressed
Isosorbide DinitrateIsosorbide Dinitrate20suppressed
BrilintaTicagrelor19suppressed
Diltiazem 24hr Er (La)Diltiazem Hcl19suppressed
JardianceEmpagliflozin1711
Propranolol HclPropranolol Hcl16suppressed
Bisoprolol FumarateBisoprolol Fumarate15suppressed
SotalolSotalol Hcl15suppressed
Isosorbide MononitrateIsosorbide Mononitrate13suppressed
Diltiazem 12hr ErDiltiazem Hcl12suppressed
FamotidineFamotidine12suppressed
Propafenone Hcl ErPropafenone Hcl12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate11suppressed
IrbesartanIrbesartan11suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11suppressed
PrednisonePrednisone11suppressed

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 $4,374.22 · 74 records Abbott Laboratories ABRYSVO, Attruby, CAMZYOS, CARDIOMEMS, CLEVIPREX, COMIRNATY, CT THROMBECTOMY SYSTEM KIT, ELIQUIS, ENTRESTO, FLOWTRIEVER CATHETER, S, General - Thrombectomy, JARDIANCE, KENGREAL, Kerendia, LEQVIO, LifeVest, MYNXGRIP, OPSYNVI, OPTIS, PREVNAR 20, REPATHA, RotarexS 6 F x 135 cm, SYMPLICITY G3, ULTREON, VYNDAQEL, WATCHMAN FLX 4
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