Healthcare provider profile · identity verified

Samir D Undevia, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · NAPERVILLE, IL · NPI 1740228857

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 Samir D Undevia, MD received $110.27 in general payments during 2025 across 5 reported records.

ARRAY BIOPHARMA INC accounted for 21.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

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 146 claims for Eliquis by this doctor in 2024.

Merck Sharp & Dohme 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 LYNPARZA as an associated drug or biological on 10903 records involving 6595 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Lynparza 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 KISQALI as an associated drug or biological on 31637 records involving 7959 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Kisqali 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 146 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

$110.27

5 reported records · 5 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
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $24.0521.8%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $23.7821.6%12025
PFIZER INC. Unresolved — no canonical attribution shown $22.0520.0%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $21.4219.4%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $18.9717.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$110.275

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
LORBRENA
Normalized: lorbrena
Drug ARRAY BIOPHARMA INC $24.05 1 2025
Source payment records
LUTATHERA
Normalized: lutathera
Drug Novartis Pharmaceuticals Corporation $23.78 1 2025
Source payment records
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $22.05 1 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug PFIZER INC. $22.05 1 2025
Source payment records
OPDIVO
Normalized: opdivo
Biological E.R. Squibb & Sons, L.L.C. $21.42 1 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $18.97 1 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $18.97 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
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
146 34
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 LYNPARZA
open payments reported associated product
CMS Open Payments — General Payments
10903 supporting records · 6595 recipient NPIs · example record 1237992238
Lynparza · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 KISQALI
open payments reported associated product
CMS Open Payments — General Payments
31637 supporting records · 7959 recipient NPIs · example record 1200004789
Kisqali · 2024
Exact normalized brand match · 1 Part D row
24 suppressed by CMS
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
146 34

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
AnastrozoleAnastrozole20161
EliquisApixaban14634
XareltoRivaroxaban8520
Potassium ChloridePotassium Chloride54suppressed
Levothyroxine SodiumLevothyroxine Sodium51suppressed
Tamoxifen CitrateTamoxifen Citrate4617
PrednisonePrednisone3512
LetrozoleLetrozole34suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen26suppressed
KisqaliRibociclib Succinate24suppressed
HydroxyureaHydroxyurea22suppressed
LynparzaOlaparib22suppressed
Abiraterone AcetateAbiraterone Acetate20suppressed
AcyclovirAcyclovir20suppressed
Hydromorphone HclHydromorphone Hcl18suppressed
Pantoprazole SodiumPantoprazole Sodium17suppressed
GabapentinGabapentin14suppressed
Imatinib MesylateImatinib Mesylate13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Warfarin SodiumWarfarin Sodium13suppressed
AllopurinolAllopurinol12suppressed
OgsiveoNirogacestat Hydrobromide12suppressed
Anagrelide HclAnagrelide 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 $110.27 · 5 records ARRAY BIOPHARMA INC IBRANCE, KEYTRUDA, KEYTRUDA QLEX, LORBRENA, LUTATHERA, OPDIVO, TUKYSA 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