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Dr. Michael J. Thirman

Hematology & Oncology (Hematology & Oncology Physician)

5841 S Maryland Ave
Chicago, IL 60637

Who else practices at this address →

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  • Medicare participating

At a glance

Years since graduation
40
In the NPI registry since
2007
Medicare patients seen, 2024
93

Licensed in Illinois since 1990, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1986Medical school: University of Michigan Medical School
  • 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Hematology & Oncology Physician primary
    IL license 036080940 (first issued 1990; active)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Hematology & Oncology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
93
Services billed
436
Patients’ average age
73
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes25940
Established patient office or other outpatient visit, 30-39 minutes9844
Established patient office or other outpatient visit, 40-54 minutes8932
Telephone medical discussion with physician, 21-30 minutes6812
Established patient office or other outpatient visit, 20-29 minutes3816
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes2423
Hospital discharge day management, 30 minutes or less1816

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Venclexta (venetoclax)40
Acyclovir
Other prescribers in Chicago, IL
39
Imbruvica (ibrutinib)33
Sulfamethoxazole-Trimethoprim (sulfamethoxazole/trimethoprim)
Other prescribers in Chicago, IL
25
Allopurinol
Other prescribers in Chicago, IL
19
Calquence (acalabrutinib maleate)13
Amlodipine Besylate
Other prescribers in Chicago, IL
12
Fluconazole
Other prescribers in Chicago, IL
12
Jaypirca (pirtobrutinib)12
Potassium Chloride
Other prescribers in Chicago, IL
11

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 4 companies reported 23 payments worth $19,023 in total to this clinician.

By type
Compensation for services other than consulting (speaking, faculty)$9,404
Consulting Fee$7,951
Travel and Lodging$1,136
Food and Beverage$532

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Sep 5, 2025Syndax Pharmaceuticals, Inc.
Sep 5, 2025
Compensation for services other than consulting (speaking, faculty)$5,600
Nov 7, 2025Syndax Pharmaceuticals, Inc.
Nov 7, 2025
Compensation for services other than consulting (speaking, faculty)$3,600
Jun 10, 2025AstraZeneca Pharmaceuticals LP
Jun 10, 2025
Consulting Fee
CALQUENCE · Oncology
$2,870
Dec 6, 2025Syndax Pharmaceuticals, Inc.
Dec 6, 2025
Consulting Fee
REVUFORJ · HEMATOLOGY-ONCOLOGY
$2,800
Jun 16, 2025AbbVie Inc.
Jun 16, 2025
Consulting Fee
VENCLEXTA · ONCOLOGY
$1,088
Apr 10, 2025Daiichi Sankyo Inc.
Apr 10, 2025
Consulting Fee
Vanflyta · ONCOLOGY
$650
Aug 16, 2025Syndax Pharmaceuticals, Inc.
Aug 16, 2025
Travel and Lodging
travel to MINNEAPOLIS, MN · in-kind
$565
Mar 25, 2025AbbVie Inc.
Mar 25, 2025
Consulting Fee
VENCLEXTA · ONCOLOGY
$544
Oct 20, 2025Syndax Pharmaceuticals, Inc.
Oct 20, 2025
Travel and Lodging
travel to MINNEAPOLIS, MN
$354
Jan 9, 2025Syndax Pharmaceuticals, Inc.
Jan 9, 2025
Compensation for services other than consulting (speaking, faculty)$124
All 17 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Dec 6, 2025Syndax Pharmaceuticals, Inc.
Dec 6, 2025
Consulting Fee
REVUFORJ · HEMATOLOGY-ONCOLOGY
$2,800
Dec 6, 2025Syndax Pharmaceuticals, Inc.
Dec 6, 2025
Travel and Lodging
REVUFORJ · HEMATOLOGY-ONCOLOGY · travel to ORLANDO, FL
$23.43
Nov 7, 2025Syndax Pharmaceuticals, Inc.
Nov 7, 2025
Compensation for services other than consulting (speaking, faculty)$3,600
Oct 20, 2025Syndax Pharmaceuticals, Inc.
Oct 20, 2025
Travel and Lodging
travel to MINNEAPOLIS, MN
$354
Oct 20, 2025Syndax Pharmaceuticals, Inc.
Oct 20, 2025
Travel and Lodging
travel to MINNEAPOLIS, MN
$91.82
Oct 20, 2025Syndax Pharmaceuticals, Inc.
Oct 20, 2025
Travel and Lodging
travel to MINNEAPOLIS, MN
$76.06
Oct 20, 2025Syndax Pharmaceuticals, Inc.
Oct 20, 2025
Travel and Lodging
travel to MINNEAPOLIS, MN
$25.76
Sep 5, 2025Syndax Pharmaceuticals, Inc.
Sep 5, 2025
Compensation for services other than consulting (speaking, faculty)$5,600
Aug 16, 2025Syndax Pharmaceuticals, Inc.
Aug 16, 2025
Travel and Lodging
travel to MINNEAPOLIS, MN · in-kind
$565
Jun 16, 2025AbbVie Inc.
Jun 16, 2025
Consulting Fee
VENCLEXTA · ONCOLOGY
$1,088
Jun 10, 2025AstraZeneca Pharmaceuticals LP
Jun 10, 2025
Consulting Fee
CALQUENCE · Oncology
$2,870
Apr 10, 2025Daiichi Sankyo Inc.
Apr 10, 2025
Consulting Fee
Vanflyta · ONCOLOGY
$650
Mar 25, 2025AbbVie Inc.
Mar 25, 2025
Consulting Fee
VENCLEXTA · ONCOLOGY
$544
Jan 9, 2025Syndax Pharmaceuticals, Inc.
Jan 9, 2025
Compensation for services other than consulting (speaking, faculty)$124
Jan 9, 2025Syndax Pharmaceuticals, Inc.
Jan 9, 2025
Compensation for services other than consulting (speaking, faculty)$43.03
Jan 9, 2025Syndax Pharmaceuticals, Inc.
Jan 9, 2025
Compensation for services other than consulting (speaking, faculty)$33.37
Jan 9, 2025Syndax Pharmaceuticals, Inc.
Jan 9, 2025
Compensation for services other than consulting (speaking, faculty)$3.95

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Illinois →

Industry-funded research

Named as a principal investigator on 8 industry-funded studies in 2025, from 4 companies. The companies reported $428,000 in research payments for these studies, mostly to the institutions running them.

  • A Phase I, Open-label, Dose-escalation Study to Assess the Safety, Tolerability and Efficacy of the combination of Pembrolizumab with TGR-1202 in patients with relapsed/refractory CLL and B-Cell Non-Hodgkin Lymphoma (…
    Merck Sharp & Dohme LLC
  • A Phase 3 Randomized, Double-blind, Placebo-controlled, Study of Bleximenib, Venetoclax and Azacitidine for the Treatment of Participants with Newly Diagnosed Acute Myeloid Leukemia Harboring KMT2ARearrangements or NP…
    Janssen Research & Development, LLC
  • A First in Human Study of the MeninKMT2A MLL1 Inhibitor JNJ75276617 in Participants with Acute Leukemia
    Janssen Research & Development, LLC
  • A phase 1/2, open-label, dose-escalation and dose-expansion cohort study of SNDX-5613 in patients with relapsed/refractory leukemias, including those harboring an mll/KMT2A gene rearrangement or nucleophosmin 1 (NPM1)…
    Syndax Pharmaceuticals, Inc.
  • Study to Evaluate Adverse Events and Movement of Intravenously (IV) Infused ABBV-787 in Adult Participants With Relapsed/Refractory (R/R) Acute Myeloid Leukemia (AML)
    AbbVie Inc. · Terminated · NCT06068868
  • Expanded access program FORSNDX-5613IN patients with relapsed/refractory acute leukemias with genetic alterations associated with hoxa overexpression
    Syndax Pharmaceuticals, Inc.
  • A phase 1, open-label, dose-escalation, and dose-expansion study to evaluate safety, tolerability, and clinical activity OFSNDX-5613IN combination with intensive chemotherapy in participants with newly diagnosed acute…
    Syndax Pharmaceuticals, Inc.
  • A Study of Venetoclax and Dinaciclib (MK7965) in Patients With Relapsed/Refractory Acute Myeloid Leukemia
    AbbVie Inc. · Terminated · NCT03484520

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Hematology & Oncology clinicians in Chicago

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 24, 2022), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1356522460. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.