Michael Joseph Breen, MD, PHD
NPI 1669861449ActiveIndividual· Internal Medicine, Hematology & Oncology· Libertyville, IL
Internal Medicine, Hematology & Oncology (MD, PHD) in Libertyville, Illinois, trained at Northwestern University Feinberg Medical School (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $1,392,614 for 795 claims, against $108,994 paid for services in 2024. Galvanize Therapeutics, Inc was the largest of 2 companies reporting payments in 2025, $249.47 in all, mostly food and beverage.
Overview
| NPI | 1669861449 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Jan 15, 2015 |
| Last updated in NPPES | Oct 13, 2022 |
| Certified by provider | Oct 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 036149848 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 359 |
|---|---|
| Services billed | 1,283 across 20 procedure codes |
| Paid by Medicare | $108,994 |
Part D prescriptions in 2024
| Prescriptions (claims) | 795 · 1,103 30-day fills |
|---|---|
| Patients | 161 |
| Total drug cost | $1,392,614 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Advocate Good Shepherd HospitalBarrington, IL
- Advocate Illinois Masonic Medical CenterChicago, IL
- Advocate Lutheran General HospitalPark Ridge, IL
- Northwestern Lake Forest HospitalLake Forest, IL
Other facilities
- Integrated Palliative and Hospice LLCHospice · Libertyville, IL
Industry payments (Open Payments)
- 2025$249.47 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Galvanize Therapeutics, Inc | $145.70 | 1 |
| Sumitomo Pharma America, Inc. | $103.77 | 5 |
What the 2025 payments were for
- Food and Beverage$249.47 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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