Kathleen Killoran, M.D.
NPI 1558551242 · Hematology & Oncology Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Killoran, M.D. is a Hematology & Oncology Physician provider in Brooklyn, NY (NPI 1558551242).
Provider details
- NPI number
- 1558551242
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 265238-1 (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
18 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
109 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 | 79 | $109 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $77 |
Typical Medicare-allowed amounts for these services range $77–$109 (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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 145 | 35 |
| Letrozole | 38 | — |
| Exemestane | 32 | — |
| Palbociclibbrand: Ibrance | 24 | — |
| Alendronate Sodium | 18 | — |
| Abemaciclibbrand: Verzenio | 18 | — |
| Ondansetron Hcl | 16 | 12 |
| Ribociclib Succinatebrand: Kisqali | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-28
- Last updated
- 2013-07-11
Frequently asked questions
- What is Kathleen Killoran's NPI number?
- Kathleen Killoran's National Provider Identifier (NPI) is 1558551242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Killoran's specialty?
- Kathleen Killoran is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Kathleen Killoran located?
- Kathleen Killoran's practice location on file with NPPES is 450 Clarkson Ave, Brooklyn, NY 11203-2012.
- What is Kathleen Killoran's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Killoran is (718) 618-8678.
- Does Kathleen Killoran accept Medicare?
- Kathleen Killoran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathleen Killoran's NPI active?
- Yes — Kathleen Killoran's NPI (1558551242) is active in the NPPES registry as of the last update on 2013-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.