Eileen O'Reilly, MD
NPI 1477644896 · Medical Oncology Physician · New York, NY
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eileen O'Reilly, MD is a Medical Oncology Physician provider in New York, NY (NPI 1477644896).
Provider details
- NPI number
- 1477644896
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 207549 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,125 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 842 | $162 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 172 | $119 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 87 | $200 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 24 | $128 |
Typical Medicare-allowed amounts for these services range $119–$200 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lipase/Protease/Amylasebrand: Creon | 294 | 77 |
| Pantoprazole Sodium | 204 | 67 |
| Lipase/Protease/Amylasebrand: Zenpep | 184 | 50 |
| Rivaroxabanbrand: Xarelto | 85 | 20 |
| Dexamethasone | 84 | 54 |
| Ondansetron Hcl | 84 | 56 |
| Olanzapine | 58 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$9,762 across 12 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2015-04-07
Frequently asked questions
- What is Eileen O'Reilly's NPI number?
- Eileen O'Reilly's National Provider Identifier (NPI) is 1477644896, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eileen O'Reilly's specialty?
- Eileen O'Reilly is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Eileen O'Reilly located?
- Eileen O'Reilly's practice location on file with NPPES is 1275 York Ave, New York, NY 10021-6007.
- What is Eileen O'Reilly's phone number?
- The practice phone number listed in the NPPES registry for Eileen O'Reilly is (646) 227-3275.
- Does Eileen O'Reilly accept Medicare?
- Eileen O'Reilly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eileen O'Reilly's NPI active?
- Yes — Eileen O'Reilly's NPI (1477644896) is active in the NPPES registry as of the last update on 2015-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.