Healthcare provider profile · identity verified

Maxwell C Mcdonald, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · SHREVEPORT, LA · NPI 1699764589

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 Maxwell C Mcdonald, MD received $944.45 in general payments during 2025 across 21 reported records.

Novartis Pharmaceuticals Corporation accounted for 54.2% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

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

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 36 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 LYNPARZA as an associated drug or biological on 9531 records involving 5030 distinct recipient NPIs. Public Medicare Part D data also shows 23 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 20 claims for Kisqali by this doctor in 2024.

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

Payment overview · 2025

General Payments

$944.45

21 reported records · 7 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 $511.5154.2%72025
ABBVIE INC. Unresolved — no canonical attribution shown $222.3623.5%82025
SEAGEN INC. Unresolved — no canonical attribution shown $99.9910.6%12025
Tempus AI, Inc Unresolved — no canonical attribution shown $56.956.0%22025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $20.382.2%12025
TAIHO ONCOLOGY, INC. Unresolved — no canonical attribution shown $19.052.0%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $14.211.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Long term medical supply or device loan$499.986
Food and Beverage$344.4814
Education$99.991

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
KISQALI
Normalized: kisqali
Drug Novartis Pharmaceuticals Corporation $499.98 6 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $198.11 7 2025
Source payment records
EPKINLY
Normalized: epkinly
Drug ABBVIE INC. $190.07 7 2025
Source payment records
XT CDX
Normalized: xt cdx
Device Tempus AI, Inc $56.95 2 2025
Source payment records
Enhertu
Normalized: enhertu
Drug Daiichi Sankyo Inc. $20.38 1 2025
Source payment records
LONSURF
Normalized: lonsurf
Drug TAIHO ONCOLOGY, INC. $19.05 1 2025
Source payment records
IMFINZI
Normalized: imfinzi
Biological AstraZeneca Pharmaceuticals LP $14.21 1 2025
Source payment records
PLUVICTO
Normalized: pluvicto
Drug Novartis Pharmaceuticals Corporation $11.53 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 36
Beneficiary count suppressed
exact normalized Medicare Part D
KISQALI
kisqali
2025 Kisqali 2024 20
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
36 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
23 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
20 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
AnastrozoleAnastrozole21355
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16950
Prochlorperazine MaleateProchlorperazine Maleate13986
LetrozoleLetrozole9429
Tamoxifen CitrateTamoxifen Citrate9324
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen8516
Oxycodone HclOxycodone Hcl6218
Tramadol HclTramadol Hcl6016
HydroxyureaHydroxyurea52suppressed
OmeprazoleOmeprazole4219
GabapentinGabapentin41suppressed
EliquisApixaban4011
Lidocaine-PrilocaineLidocaine/Prilocaine3731
ImbruvicaIbrutinib36suppressed
Ondansetron HclOndansetron Hcl3015
PrednisonePrednisone29suppressed
Potassium ChloridePotassium Chloride2713
LorazepamLorazepam2514
Levothyroxine SodiumLevothyroxine Sodium24suppressed
Hydromorphone HclHydromorphone Hcl23suppressed
LynparzaOlaparib23suppressed
LenvimaLenvatinib Mesylate21suppressed
KisqaliRibociclib Succinate20suppressed
Pantoprazole SodiumPantoprazole Sodium19suppressed
XareltoRivaroxaban19suppressed
Morphine Sulfate ErMorphine Sulfate18suppressed
Abiraterone AcetateAbiraterone Acetate17suppressed
LevofloxacinLevofloxacin14suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1413
Ondansetron OdtOndansetron12suppressed
VerzenioAbemaciclib12suppressed
Amlodipine BesylateAmlodipine Besylate11suppressed
Imatinib MesylateImatinib Mesylate11suppressed
PregabalinPregabalin11suppressed

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 $944.45 · 21 records Novartis Pharmaceuticals Corporation EPKINLY, Enhertu, IMBRUVICA, IMFINZI, KISQALI, LONSURF, PLUVICTO, XT CDX 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