Doctor profile · Federal record

Dr. Niamh Keegan, Mb BCH BAO

Hematology & Oncology Physician (CMS: Medical Oncology) · New York, NY

  • NPI 1811487127
  • Accepts Medicare
  • MIPS 88.8 / 100 · 2023
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1275 York Ave
New York, NY 100656007
(212) 639-5809
fax (929) 321-7170
Mailing address
353 E 68Th St
New York, NY 100655606

Credentials & registration

NPPES · NUCC
NPI registered
May 2018 — 8 yrs on file
Profile last updated
March 20, 2023
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
New York #307947

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811487127. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
821
Distinct HCPCS
5
Medicare allowed
$105,873
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 437 166 $112
99215 Established patient office or other outpatient visit, 40-54 minutes 139 105 $164
99213 Established patient office or other outpatient visit, 20-29 minutes 121 78 $76
99205 New patient office or other outpatient visit, 60-74 minutes 110 110 $209
99204 New patient office or other outpatient visit, 45-59 minutes 14 14 $154

In context: peer comparison

Among 103 peers in this city , average services per provider: 411. This provider delivers 2.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
405
Patients
118
Total drug cost
$1,203,862
Drug Type Claims Patients Total cost
Prednisone Generic 140 46 $689
Abiraterone Acetate Generic 111 26 $163,223
Nubeqa (Darolutamide) Brand 35 0 $460,721
Xtandi (Enzalutamide) Brand 31 0 $365,967
Tamsulosin Hcl Generic 27 14 $363
Ondansetron Hcl Generic 23 16 $459
Dexamethasone Generic 19 16 $418
Everolimus Generic 19 0 $212,022

Frequently asked questions

Auto-generated from federal data
What is Dr. Niamh Keegan's medical specialty?
Dr. Niamh Keegan practices Hematology & Oncology Physician in New York, NY.
Where does Dr. Niamh Keegan practice?
Dr. Niamh Keegan practices at 1275 York Ave, New York, NY 100656007. Office phone: 2126395809.
What is Dr. Niamh Keegan's NPI?
Dr. Niamh Keegan's National Provider Identifier (NPI) is 1811487127, issued by NPPES.
Does Dr. Niamh Keegan accept Medicare assignment?
Yes. Dr. Niamh Keegan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Niamh Keegan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.