Healthcare provider profile · identity verified

L Robert Warren, MD

Allopathic & Osteopathic Physicians|Family Medicine · BELVIDERE, IL · NPI 1558341933

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 L Robert Warren, MD received $390.43 in general payments during 2025 across 19 reported records.

AstraZeneca Pharmaceuticals LP accounted for 36.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

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

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 35 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC 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 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 25 claims for Mounjaro by this doctor in 2024.

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

Payment overview · 2025

General Payments

$390.43

19 reported records · 6 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $141.1836.2%72025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $99.4925.5%52025
Lilly USA, LLC Unresolved — no canonical attribution shown $78.4820.1%42025
ABBVIE INC. Unresolved — no canonical attribution shown $25.236.5%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $23.896.1%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $22.165.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$390.4319

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
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $99.49 5 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $78.48 4 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $78.48 4 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $25.23 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $23.89 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $22.16 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
JARDIANCE
jardiance
2025 Jardiance 2024 35
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 25
Beneficiary count suppressed
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
35 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
35 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
25 suppressed by CMS

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 Calcium13840
Metoprolol SuccinateMetoprolol Succinate8222
Amlodipine BesylateAmlodipine Besylate7422
Levothyroxine SodiumLevothyroxine Sodium7322
Losartan PotassiumLosartan Potassium6420
LisinoprilLisinopril5117
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4720
Pantoprazole SodiumPantoprazole Sodium4413
JardianceEmpagliflozin35suppressed
Rosuvastatin CalciumRosuvastatin Calcium34suppressed
Tamsulosin HclTamsulosin Hcl33suppressed
Potassium ChloridePotassium Chloride3012
Metoprolol TartrateMetoprolol Tartrate29suppressed
OmeprazoleOmeprazole29suppressed
Fluticasone PropionateFluticasone Propionate2812
Tramadol HclTramadol Hcl28suppressed
MounjaroTirzepatide25suppressed
Sertraline HclSertraline Hcl25suppressed
CelecoxibCelecoxib2412
XareltoRivaroxaban24suppressed
AzithromycinAzithromycin2215
FurosemideFurosemide21suppressed
Warfarin SodiumWarfarin Sodium21suppressed
CarvedilolCarvedilol20suppressed
Metformin Hcl ErMetformin Hcl20suppressed
GabapentinGabapentin18suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl18suppressed
Montelukast SodiumMontelukast Sodium16suppressed
BumetanideBumetanide15suppressed
HydrochlorothiazideHydrochlorothiazide15suppressed
PrednisonePrednisone1413
EzetimibeEzetimibe13suppressed
SpironolactoneSpironolactone13suppressed
EliquisApixaban12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed

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 $390.43 · 19 records AstraZeneca Pharmaceuticals LP Cologuard Collection Kit, JARDIANCE, Kerendia, MOUNJARO, UBRELVY, ZEPBOUND 3
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