Anna Andrzejczyk
NPI 1275030231ActiveIndividual· Internal Medicine, Hematology & Oncology· Stony Brook, NY
Internal Medicine, Hematology & Oncology in Stony Brook, New York, trained at State University of New York at Stony Brook, School of Medicine (class of 2018). Mostly services rather than prescriptions: Medicare paid $27,921 for 107 patients in 2024, with only 28 Part D claims. Genentech, Inc. was the largest of 4 companies reporting payments in 2025, $116.02 in all, mostly food and beverage.
Overview
| NPI | 1275030231 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 6, 2018 |
| Last updated in NPPES | Sep 18, 2024 |
| Certified by provider | Sep 18, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 318693-01 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 262 across 15 procedure codes |
| Paid by Medicare | $27,921 |
Part D prescriptions in 2024
| Prescriptions (claims) | 28 · 38 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $37,776 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | State University of New York at Stony Brook, School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Stony Brook Internists University Faculty Practice CorporationStony Brook, NY · 428 clinicians
Hospital affiliation
- Suny/Stony Brook University HospitalStony Brook, NY
Industry payments (Open Payments)
- 2025$116.02 · 4 payments from 4 companies
- 2024$473.57 · 10 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech, Inc. | $33.36 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $33.34 | 1 |
| Astrazeneca Pharmaceuticals LP | $24.99 | 1 |
| Novo Nordisk Inc | $24.33 | 1 |
What the 2025 payments were for
- Food and Beverage$116.02 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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