Healthcare provider profile · identity verified

German Larrain, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Interventional Cardiology · WAUSAU, WI · NPI 1508845090

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 German Larrain, MD received $8,766.95 in general payments during 2025 across 70 reported records.

Penumbra, Inc. accounted for 28.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 16 associated products.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Farxiga 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 201 claims for Entresto by this doctor in 2024.

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

Payment overview · 2025

General Payments

$8,766.95

70 reported records · 13 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
Penumbra, Inc. Unresolved — no canonical attribution shown $2,464.9928.1%72025
Abbott Laboratories Unresolved — no canonical attribution shown $2,393.2627.3%202025
Boston Scientific Corporation Unresolved — no canonical attribution shown $1,663.5819.0%92025
ABIOMED Unresolved — no canonical attribution shown $732.868.4%112025
Inari Medical, Inc. Unresolved — no canonical attribution shown $713.838.1%62025
Edwards Lifesciences Corporation Unresolved — no canonical attribution shown $153.621.8%52025
Amgen Inc. Unresolved — no canonical attribution shown $137.081.6%42025
AtriCure, Inc. Unresolved — no canonical attribution shown $129.301.5%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $124.881.4%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$121.941.4%12025
Stryker Corporation Unresolved — no canonical attribution shown $93.361.1%32025
Siemens Medical Solutions USA, Inc. Unresolved — no canonical attribution shown $22.450.3%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $15.800.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Travel and Lodging$5,116.9819
Food and Beverage$3,649.9751

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
Indigo System
Normalized: indigo system
Device Penumbra, Inc. $2,464.99 7 2025
Source payment records
AMPLATZER AMULET
Normalized: amplatzer amulet
Device Abbott Laboratories $2,006.33 15 2025
Source payment records
General - Vascular Access
Normalized: general vascular access
Device Boston Scientific Corporation $1,276.69 5 2025
Source payment records
CT THROMBECTOMY SYSTEM KIT
Normalized: ct thrombectomy system kit
Device Inari Medical, Inc., Stryker Corporation $774.45 8 2025
Source payment records
FLOWTRIEVER CATHETER, S
Normalized: flowtriever catheter s
Device Inari Medical, Inc., Stryker Corporation $774.45 8 2025
Source payment records
EPIC
Normalized: epic
Device Abbott Laboratories $274.15 4 2025
Source payment records
WATCHMAN FLX
Normalized: watchman flx
Device Boston Scientific Corporation $263.72 3 2025
Source payment records
SAPIEN 3 Ultra RESILIA
Normalized: sapien 3 ultra resilia
Device Edwards Lifesciences Corporation $153.62 5 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $137.08 4 2025
Source payment records
EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX
Normalized: epi sense guided coagulation system with visitrax
Device AtriCure, Inc. $129.30 1 2025
Source payment records
General - Structural Heart
Normalized: general structural heart
Device Boston Scientific Corporation $123.17 1 2025
Source payment records
SYMPLICITY G3
Normalized: symplicity g3
Device Medtronic, Inc. $121.94 1 2025
Source payment records
NAVITOR
Normalized: navitor
Device Abbott Laboratories $112.78 1 2025
Source payment records
FLOWTRIEVER
Normalized: flowtriever
Device Stryker Corporation $32.74 1 2025
Source payment records
Biograph Vision 600 (8 Ring/64 CT)
Normalized: biograph vision 600 8 ring 64 ct
Device Siemens Medical Solutions USA, Inc. $22.45 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $15.80 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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
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
201 58

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 Calcium937356
Metoprolol SuccinateMetoprolol Succinate832343
EliquisApixaban612183
Rosuvastatin CalciumRosuvastatin Calcium515204
CarvedilolCarvedilol493190
EzetimibeEzetimibe362137
Amlodipine BesylateAmlodipine Besylate357133
LisinoprilLisinopril348133
FurosemideFurosemide344140
Losartan PotassiumLosartan Potassium342127
SpironolactoneSpironolactone296105
ClopidogrelClopidogrel Bisulfate262115
BumetanideBumetanide22987
Metoprolol TartrateMetoprolol Tartrate21185
EntrestoSacubitril/Valsartan20158
Potassium ChloridePotassium Chloride19678
JardianceEmpagliflozin16938
XareltoRivaroxaban15744
Repatha SureclickEvolocumab15229
Warfarin SodiumWarfarin Sodium14649
Isosorbide Mononitrate ErIsosorbide Mononitrate14252
Amiodarone HclAmiodarone Hcl13751
HydrochlorothiazideHydrochlorothiazide12344
Diltiazem 24hr Er (Cd)Diltiazem Hcl8229
ChlorthalidoneChlorthalidone7633
SimvastatinSimvastatin7029
MultaqDronedarone Hcl5415
Ranolazine ErRanolazine5417
NitroglycerinNitroglycerin5032
Pravastatin SodiumPravastatin Sodium4520
AmoxicillinAmoxicillin4322
DigoxinDigoxin3912
TorsemideTorsemide3918
Bisoprolol FumarateBisoprolol Fumarate37suppressed
Pantoprazole SodiumPantoprazole Sodium3711
ValsartanValsartan3413
Hydralazine HclHydralazine Hcl3313
Praluent PenAlirocumab30suppressed
AtenololAtenolol2915
Flecainide AcetateFlecainide Acetate29suppressed
Klor-Con M20Potassium Chloride2411
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide23suppressed
MupirocinMupirocin2121
RamiprilRamipril21suppressed
Enalapril MaleateEnalapril Maleate19suppressed
SotalolSotalol Hcl19suppressed
Nifedipine ErNifedipine17suppressed
Spironolactone-HctzSpironolact/Hydrochlorothiazid17suppressed
JantovenWarfarin Sodium16suppressed
OzempicSemaglutide16suppressed
EplerenoneEplerenone15suppressed
GemfibrozilGemfibrozil15suppressed
CorlanorIvabradine Hcl14suppressed
FarxigaDapagliflozin Propanediol14suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide14suppressed
LovastatinLovastatin13suppressed
Metformin HclMetformin Hcl13suppressed
Benazepril HclBenazepril Hcl12suppressed
Toprol XlMetoprolol Succinate12suppressed
Fosinopril SodiumFosinopril Sodium11suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters11suppressed
VyndamaxTafamidis11suppressed

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 $8,766.95 · 70 records Penumbra, Inc. AMPLATZER AMULET, Biograph Vision 600 (8 Ring/64 CT), CT THROMBECTOMY SYSTEM KIT, EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX, EPIC, FLOWTRIEVER, FLOWTRIEVER CATHETER, S, General - Structural Heart, General - Vascular Access, Indigo System, LEQVIO, NAVITOR, REPATHA, SAPIEN 3 Ultra RESILIA, SYMPLICITY G3, WATCHMAN FLX 2
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