Healthcare provider profile · identity verified

Michael J Thirman

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · CHICAGO, IL · NPI 1356522460

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 Michael J Thirman received $19,023.43 in general payments during 2025 across 23 reported records.

Syndax Pharmaceuticals, Inc. accounted for 72.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

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

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 33 claims for Imbruvica by this doctor in 2024.

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 VENCLEXTA as an associated drug or biological on 10417 records involving 4944 distinct recipient NPIs. Public Medicare Part D data also shows 40 claims for Venclexta 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 13 claims for Calquence by this doctor in 2024.

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

Payment overview · 2025

General Payments

$19,023.43

23 reported records · 4 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
Syndax Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $13,772.1872.4%182025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $2,870.0015.1%12025
ABBVIE INC. Unresolved — no canonical attribution shown $1,731.259.1%32025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $650.003.4%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$9,404.206
Consulting Fee$7,951.255
Travel and Lodging$1,136.106
Food and Beverage$531.886

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
REVUFORJ
Normalized: revuforj
Drug Syndax Pharmaceuticals, Inc. $2,970.54 3 2025
Source payment records
CALQUENCE
Normalized: calquence
Drug AstraZeneca Pharmaceuticals LP $2,870.00 1 2025
Source payment records
VENCLEXTA
Normalized: venclexta
Drug ABBVIE INC. $1,731.25 3 2025
Source payment records
Vanflyta
Normalized: vanflyta
Drug Daiichi Sankyo Inc. $650.00 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
CALQUENCE
calquence
2025 Calquence 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
VENCLEXTA
venclexta
2025 Venclexta 2024 40
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
33 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 VENCLEXTA
open payments reported associated product
CMS Open Payments — General Payments
10417 supporting records · 4944 recipient NPIs · example record 1201353144
Venclexta · 2024
Exact normalized brand match · 1 Part D row
40 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
13 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
VenclextaVenetoclax40suppressed
AcyclovirAcyclovir39suppressed
ImbruvicaIbrutinib33suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim25suppressed
AllopurinolAllopurinol19suppressed
CalquenceAcalabrutinib Maleate13suppressed
Amlodipine BesylateAmlodipine Besylate12suppressed
FluconazoleFluconazole12suppressed
JaypircaPirtobrutinib12suppressed
Potassium ChloridePotassium Chloride11suppressed

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 $19,023.43 · 23 records Syndax Pharmaceuticals, Inc. CALQUENCE, REVUFORJ, VENCLEXTA, Vanflyta 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