Niamh Keegan, MB BCH BAO
NPI 1811487127 · Hematology & Oncology Physician · New York, NY
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Niamh Keegan, MB BCH BAO is a Hematology & Oncology Physician provider in New York, NY (NPI 1811487127).
Provider details
- NPI number
- 1811487127
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MB BCH BAO
- Sex
- Female
- Sole proprietor
- No
- License
- 307947 (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
8 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
1,063 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 542 | $111 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 312 | $78 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 117 | $163 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 79 | $207 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 13 | $57 |
Typical Medicare-allowed amounts for these services range $57–$207 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 256 | 45 |
| Prednisone | 246 | 58 |
| Darolutamidebrand: Nubeqa | 62 | — |
| Enzalutamidebrand: Xtandi | 49 | — |
| Tamsulosin Hcl | 41 | 14 |
| Relugolixbrand: Orgovyx | 30 | — |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-11
- Last updated
- 2023-03-20
- Certified
- 2023-03-20
Frequently asked questions
- What is Niamh Keegan's NPI number?
- Niamh Keegan's National Provider Identifier (NPI) is 1811487127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Niamh Keegan's specialty?
- Niamh Keegan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Niamh Keegan located?
- Niamh Keegan's practice location on file with NPPES is 1275 York Ave, New York, NY 10065-6007.
- What is Niamh Keegan's phone number?
- The practice phone number listed in the NPPES registry for Niamh Keegan is (212) 639-5809.
- Does Niamh Keegan accept Medicare?
- Niamh Keegan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Niamh Keegan's NPI active?
- Yes — Niamh Keegan's NPI (1811487127) is active in the NPPES registry as of the last update on 2023-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.