MEMORIAL HEMATOLOGY LYMPHOMA GROUP
NPI 1245945021
Internal Medicine - Medical Oncology in New York, NY
About Memorial Hematology Lymphoma Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MEMORIAL HEMATOLOGY LYMPHOMA GROUP (NPI 1245945021), doing business as Cellular Therapy Service, is a healthcare organization registered as a medical oncology in New York, New York and active in the NPI registry since January 2023. The organization lists Michael P Harrington, Exec Vp & Chief Financial Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Memorial Hematology Lymphoma Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
427Medicare enrollment records show 427 clinicians reassign Medicare billing to Memorial Hematology Lymphoma Group, which bills Medicare for the services they deliver. Of these, 26 practice at this address and 340 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 11
Nearest to this location (20)
See all 427Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Memorial Hematology Lymphoma Group's NPI number?
The NPI number for Memorial Hematology Lymphoma Group is 1245945021. It was assigned to this organization in the NPPES registry on January 17, 2023. The provider is doing business as Cellular Therapy Service.
Where is Memorial Hematology Lymphoma Group located?
Memorial Hematology Lymphoma Group is located at 530 East 74th St, New York, NY 10021. The listed phone number is (212) 639-2000.
What is Memorial Hematology Lymphoma Group's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Memorial Hematology Lymphoma Group enrolled in Medicare?
Yes. Memorial Hematology Lymphoma Group is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Memorial Hematology Lymphoma Group?
According to the CMS Revalidation Reassignment List (October 2026 release), 427 clinicians in 11 Medicare specialties reassign their Medicare billing to Memorial Hematology Lymphoma Group. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (190), Hematology/Oncology (67) and Pathology (57). Of these, 26 practice at this address and 340 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Memorial Hematology Lymphoma Group was last updated on January 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Memorial Hematology Lymphoma Group · NPI 1245945021
Medical Oncology organization in New York, New York. Organization record, active in the CMS NPPES registry since January 17, 2023.
## Identity
- **NPI:** 1245945021 (Entity type: Organization)
- **Enumerated:** January 17, 2023
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **Also known as:** Cellular Therapy Service (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Michael Harrington, EXEC VP & CHIEF FINANCIAL OFFICER
## Practice location
- **Address:** 530 EAST 74TH ST, New York, NY 10021
- **Phone:** (212) 639-2000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 427 clinicians in 11 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (190), Hematology/Oncology (67), Pathology (57); 26 practice at this address and 340 within 10 miles; [full list](https://npiprofile.com/npi/1245945021/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 17, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1245945021) · Data from the CMS NPPES public registry.