Gerard Donnelly, M.D.
NPI 1518966944 · Hematology & Oncology Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerard Donnelly, M.D. is a Hematology & Oncology Physician provider in New Hyde Park, NY (NPI 1518966944).
Provider details
- NPI number
- 1518966944
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 200441 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
6,204 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,992 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,579 | $144 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 1,526 | $18 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 353 | $101 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 277 | $201 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 118 | 34 |
| Prednisone | 81 | 24 |
| Hydroxyurea | 77 | 27 |
| Apixabanbrand: Eliquis | 76 | 20 |
| Zanubrutinibbrand: Brukinsa | 43 | — |
| Exemestane | 34 | 11 |
| Lenalidomidebrand: Revlimid | 34 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-18
- Last updated
- 2021-03-26
- Certified
- 2021-03-26
Frequently asked questions
- What is Gerard Donnelly's NPI number?
- Gerard Donnelly's National Provider Identifier (NPI) is 1518966944, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerard Donnelly's specialty?
- Gerard Donnelly is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gerard Donnelly located?
- Gerard Donnelly's practice location on file with NPPES is 1999 Marcus Ave Ste 306, New Hyde Park, NY 11042-1028.
- What is Gerard Donnelly's phone number?
- The practice phone number listed in the NPPES registry for Gerard Donnelly is (516) 627-1221.
- Does Gerard Donnelly accept Medicare?
- Gerard Donnelly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerard Donnelly's NPI active?
- Yes — Gerard Donnelly's NPI (1518966944) is active in the NPPES registry as of the last update on 2021-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.