Adam S. Kotowski, MD
NPI 1992813828ActiveIndividual· Internal Medicine, Hematology & Oncology· Williamsville, NY
Internal Medicine, Hematology & Oncology (MD) in Williamsville, New York, trained at State University of New York at Buffalo School of Medicine (class of 2006). In 2024 Medicare paid $3,113,171 for 339 patients, and Part D covered 944 of their prescriptions, 62% of them generic. Pfizer Inc. was the largest of 26 companies reporting payments in 2025, $1,328 in all, mostly food and beverage.
Overview
| NPI | 1992813828 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 29, 2006 |
| Last updated in NPPES | Jan 24, 2023 |
| Certified by provider | Jan 24, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 249101 | NY |
| Specialist | 174400000X | 249101 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 339 |
|---|---|
| Services billed | 453,168 across 108 procedure codes |
| Paid by Medicare | $3,113,171 |
Part D prescriptions in 2024
| Prescriptions (claims) | 944 · 1,654 30-day fills |
|---|---|
| Patients | 307 |
| Total drug cost | $2,391,257 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Hematology |
Medical groups
- Rpci Oncology, PCWilliamsville, NY · 65 clinicians
- Western New York Bloodcare IncBuffalo, NY · 6 clinicians
Hospital affiliations
- Kaleida HealthBuffalo, NY
- Kenmore Mercy HospitalKenmore, NY
- Sisters of Charity HospitalBuffalo, NY
Other facilities
- Vna of Western Ny ChhaHome health agency · Cheektowaga, NY
Industry payments (Open Payments)
- 2025$1,328 · 60 payments from 26 companies
- 2024$4,318 · 52 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $200.54 | 10 |
| Abbvie Inc. | $165.72 | 7 |
| Novartis Pharmaceuticals Corporation | $147.80 | 5 |
| Genzyme Corporation | $97.91 | 4 |
| Astrazeneca Pharmaceuticals LP | $69.02 | 3 |
What the 2025 payments were for
- Food and Beverage$1,312 · 59 payments
- Education$15.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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