WEILL CORNELL HEMATOLOGY ONCOLOGY
NPI 1881604866
Internal Medicine - Hematology & Oncology in New York, NY
About Weill Cornell Hematology Oncology NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WEILL CORNELL HEMATOLOGY ONCOLOGY (NPI 1881604866) is a healthcare organization registered as a hematology & oncology in New York, New York and active in the NPI registry since August 2006. The organization lists Christopher T. Kells, Assosicate Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
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)
Weill Cornell Hematology Oncology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
67Medicare enrollment records show 67 clinicians reassign Medicare billing to Weill Cornell Hematology Oncology, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 54 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 6
Nearest to this location (20)
See all 67New York, NY 10065
New York, NY 10021
Source: 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 Weill Medical College Of Cornell's NPI number?
The NPI number for Weill Medical College Of Cornell is 1881604866. It was assigned to this organization in the NPPES registry on August 9, 2006. The provider is doing business as Weill Cornell Hematology Oncology.
Where is Weill Medical College Of Cornell located?
Weill Medical College Of Cornell is located at 525 E 68th St, New York, NY 10021. The listed phone number is (212) 746-6264.
What is Weill Medical College Of Cornell's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Weill Medical College Of Cornell enrolled in Medicare?
Yes. Weill Medical College Of Cornell is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Weill Medical College Of Cornell?
According to the CMS Revalidation Reassignment List (October 2026 release), 67 clinicians in 6 Medicare specialties reassign their Medicare billing to Weill Medical College Of Cornell. 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 Medical Oncology (30), Nurse Practitioner (25) and Hematology (4). Of these, 4 practice at this address and 54 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 Weill Medical College Of Cornell was last updated on June 25, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Weill Cornell Hematology Oncology · NPI 1881604866
Hematology & Oncology organization in New York, New York. Organization record, active in the CMS NPPES registry since August 9, 2006.
## Identity
- **NPI:** 1881604866 (Entity type: Organization)
- **Enumerated:** August 9, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **Legal business name:** Weill Medical College Of Cornell
- **Organization subpart:** No
- **Authorized official:** Christopher Kells, ASSOSICATE DIRECTOR
## Practice location
- **Address:** 525 E 68TH ST, New York, NY 10021-4870
- **Phone:** (212) 746-6264 · **Fax:** (212) 746-3844
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 67 clinicians in 6 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Medical Oncology (30), Nurse Practitioner (25), Hematology (4); 4 practice at this address and 54 within 10 miles; [full list](https://npiprofile.com/npi/1881604866/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 25, 2013
- **Other identifiers:** Medicare PIN W09561 (NY); Medicaid 01856179 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1881604866) · Data from the CMS NPPES public registry.