Gerard B. Donnelly, M.D.
NPI 1518966944ActiveIndividual· Internal Medicine, Hematology & Oncology· New Hyde Park, NY
Internal Medicine, Hematology & Oncology (M.D.) in New Hyde Park, New York, trained at George Washington University School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $4,300,365 for 1,055 claims, against $340,626 paid for services in 2024.
Overview
| NPI | 1518966944 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 18, 2005 |
| Last updated in NPPES | Mar 26, 2021 |
| Certified by provider | Mar 26, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 200441 | 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 | 908 |
|---|---|
| Services billed | 6,367 across 29 procedure codes |
| Paid by Medicare | $340,626 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,055 · 1,786 30-day fills |
|---|---|
| Patients | 209 |
| Total drug cost | $4,300,365 |
| Generic share | 65% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- New York UniversityNew York, NY · 6,134 clinicians
Hospital affiliations
- Long Island Jewish Medical CenterNew Hyde Park, NY
- North Shore University HospitalManhasset, NY
- NYU Langone HospitalsNew York, NY
- St Francis Hospital - the Heart CenterRoslyn, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology & Oncology providers in New Hyde Park
- 1821222076
- 1275453367
- 1003409061
- 1164460754
- 1346415734
- 1316106834
- 1245239664
- 1447313069
- 1891794210
- 1184628059
- 1851559777
- 1861886145
All Internal Medicine, Hematology & Oncology providers in New York →