Michelle Fleyshman, MD
NPI 1841751013ActiveIndividual· Internal Medicine, Hematology & Oncology· Brooklyn, NY
Internal Medicine, Hematology & Oncology (MD) in Brooklyn, New York, trained at Drexel University College of Medicine (class of 2019). Enrolled in Medicare as practitioner - hematology/oncology. Alexion Pharmaceuticals, Inc. was the largest of 10 companies reporting payments in 2025, $1,062 in all, mostly food and beverage.
Overview
| NPI | 1841751013 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 28, 2019 |
| Last updated in NPPES | Aug 6, 2026 |
| Certified by provider | Aug 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 337500 | NY |
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 (NY) |
|---|
Education and affiliations
| Medical school | Drexel University College of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Maimonides Faculty Practice PlanBrooklyn, NY · 252 clinicians
Hospital affiliation
- Maimonides Medical CenterBrooklyn, NY
Industry payments (Open Payments)
- 2025$1,062 · 21 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alexion Pharmaceuticals, Inc. | $337.71 | 6 |
| Genzyme Corporation | $177.87 | 4 |
| Regeneron Healthcare Solutions, Inc. | $135.00 | 1 |
| Sanofi-Aventis U.S. LLC | $112.24 | 1 |
| Abbvie Inc. | $99.95 | 1 |
What the 2025 payments were for
- Food and Beverage$961.73 · 20 payments
- Education$99.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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