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Icahn School of Medicine at Mount Sinai

Internal Medicine Physician in New York, NY · enumerated 2016 · authorized official Alicia Gresham, Vp of Network Operations.

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

National Provider Identifier

1578013421

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Registry record

Entity type Organization (Type 2)
Legal business name Icahn School of Medicine at Mount Sinai
Other name <Unavail>
Parent organization Mount Sinai Hospital
Practice address 315 W 50th St, New York, NY, 10019
Phone (212) 333-7661
Fax (212) 582-6911
Enumeration date Oct 4, 2016
Last updated in NPPES Oct 4, 2016

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alicia Gresham
Title Vp of 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

What type of organization is Icahn School of Medicine at Mount Sinai?
Icahn School of Medicine at Mount Sinai is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-04.