Healthcare provider profile · identity verified

Jeffrey Patrick Gatz, MD

Internal Medicine · VALPARAISO, IN · NPI 1609868207

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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium387108
Amlodipine BesylateAmlodipine Besylate29783
Levothyroxine SodiumLevothyroxine Sodium22854
Losartan PotassiumLosartan Potassium20249
Metformin HclMetformin Hcl15943
HydrochlorothiazideHydrochlorothiazide15248
LisinoprilLisinopril13132
OmeprazoleOmeprazole12538
Rosuvastatin CalciumRosuvastatin Calcium12539
Sertraline HclSertraline Hcl11234
OzempicSemaglutide10822
SimvastatinSimvastatin9827
Tamsulosin HclTamsulosin Hcl9728
Pantoprazole SodiumPantoprazole Sodium8420
JardianceEmpagliflozin8117
Pravastatin SodiumPravastatin Sodium7824
Metoprolol SuccinateMetoprolol Succinate7524
Bupropion XlBupropion Hcl6819
Tramadol HclTramadol Hcl6613
GabapentinGabapentin5916
Alendronate SodiumAlendronate Sodium5815
Montelukast SodiumMontelukast Sodium5411
ClonazepamClonazepam52suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4616
AllopurinolAllopurinol4413
DiazepamDiazepam44suppressed
Fluticasone PropionateFluticasone Propionate4211
Fluoxetine HclFluoxetine Hcl41suppressed
FurosemideFurosemide4113
Tresiba Flextouch U-100Insulin Degludec39suppressed
Venlafaxine Hcl ErVenlafaxine Hcl38suppressed
Trazodone HclTrazodone Hcl3713
CarvedilolCarvedilol36suppressed
SynthroidLevothyroxine Sodium33suppressed
ValsartanValsartan33suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen32suppressed
Duloxetine HclDuloxetine Hcl30suppressed
CelecoxibCelecoxib29suppressed
Metoprolol TartrateMetoprolol Tartrate29suppressed
PrednisonePrednisone2826
Citalopram HbrCitalopram Hydrobromide27suppressed
Donepezil HclDonepezil Hcl27suppressed
MeloxicamMeloxicam27suppressed
Metformin Hcl ErMetformin Hcl24suppressed
CephalexinCephalexin2319
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide23suppressed
Breo ElliptaFluticasone/Vilanterol22suppressed
Potassium ChloridePotassium Chloride22suppressed
AripiprazoleAripiprazole21suppressed
ChlorthalidoneChlorthalidone20suppressed
FinasterideFinasteride20suppressed
Glipizide ErGlipizide20suppressed
ValacyclovirValacyclovir Hcl20suppressed
Escitalopram OxalateEscitalopram Oxalate19suppressed
TrulicityDulaglutide19suppressed
Amitriptyline HclAmitriptyline Hcl18suppressed
EliquisApixaban18suppressed
ClopidogrelClopidogrel Bisulfate17suppressed
IrbesartanIrbesartan16suppressed
AmoxicillinAmoxicillin1513
Azelastine HclAzelastine Hcl15suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
Klor-Con M20Potassium Chloride15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic15suppressed
Ropinirole HclRopinirole Hcl15suppressed
Buspirone HclBuspirone Hcl14suppressed
Oxybutynin Chloride ErOxybutynin Chloride14suppressed
AlprazolamAlprazolam13suppressed
AtenololAtenolol13suppressed
Bevespi AerosphereGlycopyrrolate/Formoterol Fum13suppressed
ColchicineColchicine13suppressed
Flecainide AcetateFlecainide Acetate13suppressed
GlimepirideGlimepiride13suppressed
SpironolactoneSpironolactone13suppressed
EszopicloneEszopiclone12suppressed
Fludrocortisone AcetateFludrocortisone Acetate12suppressed
LorazepamLorazepam12suppressed
MirtazapineMirtazapine12suppressed
Propranolol Hcl ErPropranolol Hcl12suppressed
Zolpidem TartrateZolpidem Tartrate12suppressed
HydrocortisoneHydrocortisone11suppressed
Klor-Con M10Potassium Chloride11suppressed
Sumatriptan SuccinateSumatriptan Succinate11suppressed
Verapamil ErVerapamil 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
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