Healthcare provider profile · identity verified

Daniel W Sonnenburg, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · INDIANAPOLIS, IN · NPI 1538508965

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 Daniel W Sonnenburg, M.D. received $15,451.72 in general payments during 2025 across 60 reported records.

AstraZeneca Pharmaceuticals LP accounted for 90.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 18 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Erleada, Inlyta, Lenvima, Lynparza, Orgovyx, Xtandi.

Astellas Pharma US 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 Xtandi as an associated drug or biological on 11345 records involving 5418 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Xtandi 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 LYNPARZA as an associated drug or biological on 9531 records involving 5030 distinct recipient NPIs. Public Medicare Part D data also shows 84 claims for Lynparza 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 TAGRISSO as an associated drug or biological on 5285 records involving 2776 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Tagrisso by this doctor in 2024.

Eisai 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 Lenvima as an associated drug or biological on 16833 records involving 7014 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Lenvima by this doctor in 2024.

Janssen Biotech, 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 ERLEADA as an associated drug or biological on 32382 records involving 10919 distinct recipient NPIs. Public Medicare Part D data also shows 24 claims for Erleada by this doctor in 2024.

Janssen Biotech, 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 XARELTO as an associated drug or biological on 24 records involving 23 distinct recipient NPIs. Public Medicare Part D data also shows 62 claims for Xarelto 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 LENVIMA as an associated drug or biological on 66 records involving 58 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Lenvima 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 84 claims for Lynparza 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 55 claims for Eliquis 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 INLYTA as an associated drug or biological on 2646 records involving 1964 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Inlyta 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 ORGOVYX as an associated drug or biological on 16373 records involving 6981 distinct recipient NPIs. Public Medicare Part D data also shows 137 claims for Orgovyx 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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Xtandi by this doctor in 2024.

Sumitomo Pharma America, 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 ORGOVYX as an associated drug or biological on 17129 records involving 6223 distinct recipient NPIs. Public Medicare Part D data also shows 137 claims for Orgovyx by this doctor in 2024.

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

Payment overview · 2025

General Payments

$15,451.72

60 reported records · 8 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 $13,971.2590.4%122025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $561.693.6%82025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $295.311.9%112025
Eisai Inc. Unresolved — no canonical attribution shown $230.551.5%92025
PFIZER INC. Unresolved — no canonical attribution shown $180.601.2%102025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $160.011.0%82025
Corcept Therapeutics Unresolved — no canonical attribution shown $28.960.2%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $23.350.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$10,790.007
Consulting Fee$3,350.001
Food and Beverage$1,311.7252

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
LYNPARZA
Normalized: lynparza
Biological, Drug AstraZeneca Pharmaceuticals LP, Merck Sharp & Dohme LLC $7,601.50 10 2025
Source payment records
Truqap
Normalized: truqap
Drug AstraZeneca Pharmaceuticals LP $3,350.00 1 2025
Source payment records
CARVYKTI
Normalized: carvykti
Drug Janssen Biotech, Inc. $440.00 1 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Biotech, Inc. $440.00 1 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $236.56 9 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $230.55 9 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug PFIZER INC., Sumitomo Pharma America, Inc. $214.31 10 2025
Source payment records
PADCEV
Normalized: padcev
Biological, Drug Astellas Pharma US Inc, PFIZER INC. $149.65 9 2025
Source payment records
ERLEADA
Normalized: erleada
Drug Janssen Biotech, Inc. $121.69 7 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $80.60 3 2025
Source payment records
WELIREG
Normalized: welireg
Drug Merck Sharp & Dohme LLC $59.00 2 2025
Source payment records
TALZENNA
Normalized: talzenna
Drug PFIZER INC. $54.30 2 2025
Source payment records
XTANDI
Normalized: xtandi
Drug PFIZER INC. $54.30 2 2025
Source payment records
AKEEGA
Normalized: akeega
Drug Janssen Biotech, Inc. $38.40 2 2025
Source payment records
BALVERSA
Normalized: balversa
Drug Janssen Biotech, Inc. $38.40 2 2025
Source payment records
INLYTA
Normalized: inlyta
Drug PFIZER INC. $37.61 2 2025
Source payment records
IMFINZI
Normalized: imfinzi
Biological AstraZeneca Pharmaceuticals LP $32.41 2 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $28.96 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
ERLEADA
erleada
2025 Erleada 2024 24
Beneficiary count suppressed
exact normalized Medicare Part D
INLYTA
inlyta
2025 Inlyta 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
Lenvima
lenvima
2025 Lenvima 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
LYNPARZA
lynparza
2025 Lynparza 2024 84 exact normalized Medicare Part D
ORGOVYX
orgovyx
2025 Orgovyx 2024 137 exact normalized Medicare Part D
XTANDI
xtandi
2025 Xtandi 2024 11
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
Astellas Pharma US Inc
Exact reporting entity; no affiliate inference
2025 Xtandi
open payments reported associated product
CMS Open Payments — General Payments
11345 supporting records · 5418 recipient NPIs · example record 1238560686
Xtandi · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 LYNPARZA
open payments reported associated product
CMS Open Payments — General Payments
9531 supporting records · 5030 recipient NPIs · example record 1206131376
Lynparza · 2024
Exact normalized brand match · 1 Part D row
84 19
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 TAGRISSO
open payments reported associated product
CMS Open Payments — General Payments
5285 supporting records · 2776 recipient NPIs · example record 1206131546
Tagrisso · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
Eisai Inc.
Exact reporting entity; no affiliate inference
2025 Lenvima
open payments reported associated product
CMS Open Payments — General Payments
16833 supporting records · 7014 recipient NPIs · example record 1244455619
Lenvima · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 ERLEADA
open payments reported associated product
CMS Open Payments — General Payments
32382 supporting records · 10919 recipient NPIs · example record 1174257499
Erleada · 2024
Exact normalized brand match · 1 Part D row
24 suppressed by CMS
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 XARELTO
open payments reported associated product
CMS Open Payments — General Payments
24 supporting records · 23 recipient NPIs · example record 1174259978
Xarelto · 2024
Exact normalized brand match · 1 Part D row
62 26
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 LENVIMA
open payments reported associated product
CMS Open Payments — General Payments
66 supporting records · 58 recipient NPIs · example record 1237995778
Lenvima · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
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
84 19
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
55 22
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 INLYTA
open payments reported associated product
CMS Open Payments — General Payments
2646 supporting records · 1964 recipient NPIs · example record 1228795917
Inlyta · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ORGOVYX
open payments reported associated product
CMS Open Payments — General Payments
16373 supporting records · 6981 recipient NPIs · example record 1228794230
Orgovyx · 2024
Exact normalized brand match · 1 Part D row
137 41
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 XTANDI
open payments reported associated product
CMS Open Payments — General Payments
19368 supporting records · 7657 recipient NPIs · example record 1228794230
Xtandi · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Sumitomo Pharma America, Inc.
Exact reporting entity; no affiliate inference
2025 ORGOVYX
open payments reported associated product
CMS Open Payments — General Payments
17129 supporting records · 6223 recipient NPIs · example record 1176593507
Orgovyx · 2024
Exact normalized brand match · 1 Part D row
137 41

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
OrgovyxRelugolix13741
Prochlorperazine MaleateProchlorperazine Maleate12785
DexamethasoneDexamethasone12343
Ondansetron HclOndansetron Hcl12390
PrednisonePrednisone9831
Abiraterone AcetateAbiraterone Acetate9027
LynparzaOlaparib8419
NubeqaDarolutamide7015
XareltoRivaroxaban6226
EliquisApixaban5522
AcyclovirAcyclovir4415
LenalidomideLenalidomide29suppressed
GabapentinGabapentin25suppressed
LetrozoleLetrozole25suppressed
ErleadaApalutamide24suppressed
Escitalopram OxalateEscitalopram Oxalate20suppressed
Warfarin SodiumWarfarin Sodium20suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen1815
RevlimidLenalidomide18suppressed
LoperamideLoperamide Hcl17suppressed
Enoxaparin SodiumEnoxaparin Sodium16suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen1511
TagrissoOsimertinib Mesylate15suppressed
LenvimaLenvatinib Mesylate13suppressed
ZejulaNiraparib Tosylate13suppressed
InlytaAxitinib12suppressed
Levothyroxine SodiumLevothyroxine Sodium11suppressed
XtandiEnzalutamide11suppressed

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 $15,451.72 · 60 records AstraZeneca Pharmaceuticals LP AKEEGA, BALVERSA, CARVYKTI, ERLEADA, IMFINZI, INLYTA, KEYTRUDA, KEYTRUDA QLEX, Korlym, LYNPARZA, Lenvima, ORGOVYX, PADCEV, RYBREVANT, TALZENNA, Truqap, WELIREG, XTANDI 13
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