Healthcare provider profile · identity verified

William George Espar, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · MICHIGAN CITY, IN · NPI 1952396855

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 William George Espar, M.D. received $814.55 in general payments during 2025 across 41 reported records.

Novartis Pharmaceuticals Corporation accounted for 33.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 14 associated products.

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

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 234 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 75 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

$814.55

41 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
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $272.4233.4%182025
ABIOMED Unresolved — no canonical attribution shown $77.969.6%32025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $72.378.9%32025
HEARTFLOW, INC. Unresolved — no canonical attribution shown $70.208.6%22025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$67.318.3%12025
Abbott Laboratories Unresolved — no canonical attribution shown $65.698.1%32025
Vital Connect, Inc Unresolved — no canonical attribution shown $45.725.6%22025
Boston Scientific Corporation Unresolved — no canonical attribution shown $40.885.0%22025
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) Unresolved — no canonical attribution shown $31.983.9%32025
LANTHEUS MEDICAL IMAGING, INC. Unresolved — no canonical attribution shown $23.802.9%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $17.252.1%12025
Philips North America LLC Unresolved — no canonical attribution shown $14.791.8%12025
Becton, Dickinson and Company Unresolved — no canonical attribution shown $14.181.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$814.5541

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
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $254.37 15 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $72.37 3 2025
Source payment records
FFRct
Normalized: ffrct
Device HEARTFLOW, INC. $70.20 2 2025
Source payment records
COREVALVE EVOLUT R
Normalized: corevalve evolut r
Device Medtronic, Inc. $67.31 1 2025
Source payment records
CARDIOMEMS
Normalized: cardiomems
Device Abbott Laboratories $65.69 3 2025
Source payment records
VITALPATCH RTM
Normalized: vitalpatch rtm
Device Vital Connect, Inc $45.72 2 2025
Source payment records
LifeVest
Normalized: lifevest
Device ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $31.98 3 2025
Source payment records
CDS - MCT/CEM Monitoring
Normalized: cds mct cem monitoring
Device Boston Scientific Corporation $26.71 1 2025
Source payment records
DEFINITY
Normalized: definity
Drug LANTHEUS MEDICAL IMAGING, INC. $23.80 1 2025
Source payment records
ENTRESTO
Normalized: entresto
Drug Novartis Pharmaceuticals Corporation $18.05 3 2025
Source payment records
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $17.25 1 2025
Source payment records
Ambulatory Monitoring & Diagnostics Undivided
Normalized: ambulatory monitoring diagnostics undivided
Device Philips North America LLC $14.79 1 2025
Source payment records
HemoSphere
Normalized: hemosphere
Device Becton, Dickinson and Company $14.18 1 2025
Source payment records
WATCHMAN FLX
Normalized: watchman flx
Device Boston Scientific Corporation $14.17 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
ENTRESTO
entresto
2025 Entresto 2024 75 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
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
234 65
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
75 22

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 Calcium482155
Metoprolol SuccinateMetoprolol Succinate454142
FurosemideFurosemide27893
Amlodipine BesylateAmlodipine Besylate27791
LisinoprilLisinopril24671
Metoprolol TartrateMetoprolol Tartrate23976
EliquisApixaban23465
Isosorbide Mononitrate ErIsosorbide Mononitrate21668
Diltiazem 24hr Er (Cd)Diltiazem Hcl20771
ClopidogrelClopidogrel Bisulfate19563
CarvedilolCarvedilol18861
XareltoRivaroxaban18543
AtenololAtenolol18152
Losartan PotassiumLosartan Potassium13950
NitroglycerinNitroglycerin13072
Rosuvastatin CalciumRosuvastatin Calcium12136
HydrochlorothiazideHydrochlorothiazide10533
SimvastatinSimvastatin10029
EntrestoSacubitril/Valsartan7522
Ranolazine ErRanolazine7422
Potassium ChloridePotassium Chloride7128
Prasugrel HclPrasugrel Hcl7123
BrilintaTicagrelor5816
SpironolactoneSpironolactone5719
Pravastatin SodiumPravastatin Sodium5515
Repatha SureclickEvolocumab4911
EzetimibeEzetimibe4314
FenofibrateFenofibrate Nanocrystallized43suppressed
Amiodarone HclAmiodarone Hcl3512
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3511
Warfarin SodiumWarfarin Sodium32suppressed
SotalolSotalol Hcl29suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide25suppressed
MetolazoneMetolazone25suppressed
ValsartanValsartan25suppressed
Flecainide AcetateFlecainide Acetate2411
Nifedipine ErNifedipine23suppressed
Diltiazem 24hr ErDiltiazem Hcl22suppressed
Nebivolol HclNebivolol Hcl19suppressed
Albuterol Sulfate HfaAlbuterol Sulfate18suppressed
Hydralazine HclHydralazine Hcl18suppressed
FenofibrateFenofibrate17suppressed
Pantoprazole SodiumPantoprazole Sodium16suppressed
RamiprilRamipril16suppressed
Acebutolol HclAcebutolol Hcl15suppressed
Enalapril MaleateEnalapril Maleate15suppressed
JardianceEmpagliflozin15suppressed
Klor-Con M20Potassium Chloride15suppressed
Sildenafil CitrateSildenafil Citrate15suppressed
TorsemideTorsemide15suppressed
Metformin HclMetformin Hcl13suppressed
Dilt-XrDiltiazem Hcl12suppressed
GabapentinGabapentin12suppressed
Klor-Con M10Potassium Chloride12suppressed
Propranolol HclPropranolol Hcl12suppressed
Terazosin HclTerazosin Hcl12suppressed
Benazepril HclBenazepril Hcl11suppressed
PlavixClopidogrel Bisulfate11suppressed

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 $814.55 · 41 records Novartis Pharmaceuticals Corporation Ambulatory Monitoring & Diagnostics Undivided, CAMZYOS, CARDIOMEMS, CDS - MCT/CEM Monitoring, COREVALVE EVOLUT R, DEFINITY, ENTRESTO, FFRct, HemoSphere, LEQVIO, LifeVest, VERQUVO, VITALPATCH RTM, 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