Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Icahn School of Medicine at Mount Sinai

Internal Medicine Physician in Oceanside, NY · enumerated 2018 · authorized official Alicia Gresham, Vp of Network Operations.

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

National Provider Identifier

1942792304

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Registry record

Entity type Organization (Type 2)

Legal business name Icahn School of Medicine at Mount Sinai

Other name <Unavail>

Practice address 196 Merrick Rd, Oceanside, NY, 11572

Phone (516) 255-8400

Enumeration date Jun 1, 2018

Last updated in NPPES Jun 16, 2018

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary

207QB0002X Obesity Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

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.

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).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-16.