Healthcare provider profile · identity verified

Katherine Rebecca Exten, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · MANSFIELD, OH · NPI 1982996237

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 Katherine Rebecca Exten, M.D. received $420.62 in general payments during 2025 across 18 reported records.

ABBVIE INC. accounted for 32.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

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

ABBVIE 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 IMBRUVICA as an associated drug or biological on 15599 records involving 6881 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Imbruvica by this doctor in 2024.

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 CALQUENCE as an associated drug or biological on 8404 records involving 3935 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Calquence by this doctor in 2024.

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 108 claims for Eliquis by this doctor in 2024.

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 SPRYCEL as an associated drug or biological on 32 records involving 32 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Sprycel 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 108 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

$420.62

18 reported records · 9 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
ABBVIE INC. Unresolved — no canonical attribution shown $136.0732.4%62025
Eisai Inc. Unresolved — no canonical attribution shown $68.9016.4%32025
Aveo Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $48.9911.7%22025
PFIZER INC. Unresolved — no canonical attribution shown $40.379.6%22025
TerSera Therapeutics LLC Unresolved — no canonical attribution shown $39.929.5%12025
Tempus AI, Inc Unresolved — no canonical attribution shown $25.366.0%12025
Octapharma USA, Inc. Unresolved — no canonical attribution shown $24.745.9%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $22.225.3%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $14.053.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$401.3216
Education$19.302

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
EPKINLY
Normalized: epkinly
Drug ABBVIE INC. $106.08 5 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $106.08 5 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $68.90 3 2025
Source payment records
FOTIVDA
Normalized: fotivda
Drug Aveo Pharmaceuticals, Inc. $48.99 2 2025
Source payment records
Xermelo
Normalized: xermelo
Drug TerSera Therapeutics LLC $39.92 1 2025
Source payment records
ELAHERE
Normalized: elahere
Drug ABBVIE INC. $29.99 1 2025
Source payment records
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $26.23 1 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug PFIZER INC. $26.23 1 2025
Source payment records
XT CDX
Normalized: xt cdx
Device Tempus AI, Inc $25.36 1 2025
Source payment records
OCTAGAM IMMUNE GLOBULIN (HUMAN)
Normalized: octagam immune globulin human
Biological Octapharma USA, Inc. $24.74 1 2025
Source payment records
ADCETRIS
Normalized: adcetris
Biological PFIZER INC. $14.14 1 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $14.14 1 2025
Source payment records
OPDIVO
Normalized: opdivo
Biological E.R. Squibb & Sons, L.L.C. $14.05 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
IMBRUVICA
imbruvica
2025 Imbruvica 2024 14
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 IMBRUVICA
open payments reported associated product
CMS Open Payments — General Payments
15599 supporting records · 6881 recipient NPIs · example record 1201352838
Imbruvica · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 CALQUENCE
open payments reported associated product
CMS Open Payments — General Payments
8404 supporting records · 3935 recipient NPIs · example record 1206131382
Calquence · 2024
Exact normalized brand match · 1 Part D row
32 suppressed by CMS
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
108 21
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 SPRYCEL
open payments reported associated product
CMS Open Payments — General Payments
32 supporting records · 32 recipient NPIs · example record 1184390211
Sprycel · 2024
Exact normalized brand match · 1 Part D row
11 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
108 21

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
AnastrozoleAnastrozole29275
Tamoxifen CitrateTamoxifen Citrate16140
Prochlorperazine MaleateProchlorperazine Maleate11576
EliquisApixaban10821
GabapentinGabapentin10728
DexamethasoneDexamethasone9939
Levothyroxine SodiumLevothyroxine Sodium9719
HydroxyureaHydroxyurea9324
AcyclovirAcyclovir8517
Ondansetron HclOndansetron Hcl8042
Potassium ChloridePotassium Chloride7419
LenalidomideLenalidomide6514
LoperamideLoperamide Hcl5628
RevlimidLenalidomide5411
PrednisonePrednisone4716
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen4316
Abiraterone AcetateAbiraterone Acetate41suppressed
CalquenceAcalabrutinib Maleate32suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim32suppressed
Imatinib MesylateImatinib Mesylate28suppressed
Duloxetine HclDuloxetine Hcl23suppressed
ExemestaneExemestane23suppressed
LetrozoleLetrozole23suppressed
LonsurfTrifluridine/Tipiracil Hcl22suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine21suppressed
EverolimusEverolimus21suppressed
OlanzapineOlanzapine2016
VeozahFezolinetant20suppressed
Klor-Con M20Potassium Chloride19suppressed
Oxycodone HclOxycodone Hcl19suppressed
Betamethasone ValerateBetamethasone Valerate1712
DapsoneDapsone16suppressed
ImbruvicaIbrutinib14suppressed
Morphine Sulfate ErMorphine Sulfate14suppressed
StivargaRegorafenib14suppressed
Tramadol HclTramadol Hcl1411
AllopurinolAllopurinol12suppressed
Lidocaine-PrilocaineLidocaine/Prilocaine1211
Ondansetron OdtOndansetron12suppressed
SprycelDasatinib11suppressed
Warfarin SodiumWarfarin Sodium11suppressed

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 $420.62 · 18 records ABBVIE INC. ADCETRIS, ELAHERE, ELREXFIO, EPKINLY, FOTIVDA, IBRANCE, IMBRUVICA, Lenvima, OCTAGAM IMMUNE GLOBULIN (HUMAN), OPDIVO, TUKYSA, XT CDX, Xermelo 5
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