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Mount Sinai School of Medicine

Hematology & Oncology Physician in Merrick, NY · enumerated 2018 · authorized official Alicia Gresham, Vp Network Operations.

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

National Provider Identifier

1720555089

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Registry record

Entity type Organization (Type 2)
Legal business name Mount Sinai School of Medicine
Other name <Unavail>
Practice address 2209 Merrick Rd Ste 101, Merrick, NY, 11566
Phone (516) 546-5000
Enumeration date Oct 25, 2018
Last updated in NPPES Jan 11, 2019

Taxonomy & classification

163WX0200X Oncology Registered Nurse Nursing Service Providers Secondary
207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary
207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Alicia Gresham
Title Vp Network Operations
Phone (212) 659-9038

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 2019-01-11. Verify at npiregistry.cms.hhs.gov.
Where is Mount Sinai School of Medicine located?
The practice location on file with NPPES is in Merrick, NY.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-11.