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Memorial Sloan Kettering Cancer Center

Special Hospital in New York, NY · enumerated 2008 · authorized official Ronald Dematteo, Chief of Surgical Oncology.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1821255365

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Registry record

Entity type Organization (Type 2)
Legal business name Memorial Sloan Kettering Cancer Center
Practice address 1275 York Ave, Box 435, New York, NY, 10065
Phone (212) 639-7537
Enumeration date May 21, 2008
Last updated in NPPES Aug 15, 2008

Taxonomy & classification

284300000X Special Hospital Hospitals · License 247353 (NY) Primary

Authorized official

Name Ronald Dematteo
Title Chief of Surgical Oncology
Phone (212) 639-3978

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-08-15. Verify at npiregistry.cms.hhs.gov.
Where is Memorial Sloan Kettering Cancer Center located?
The practice location on file with NPPES is in New York, NY.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-15.