Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Marc Andrew Horowitz MD PC

Q: What is the NPI number for Marc Andrew Horowitz MD PC?

The NPI for Marc Andrew Horowitz MD PC is 1841581360, a Type 2 (organization) record in the CMS NPPES registry.

Ophthalmology Physician in Scarsdale, NY · enumerated 2011 · authorized official Marc Horowitz, President.

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

National Provider Identifier

1841581360

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Registry record

Entity type Organization (Type 2)

Legal business name Marc Andrew Horowitz MD PC

Practice address 14 Harwood Ct, Suite 209, Scarsdale, NY, 10583

Phone (914) 723-5511

Fax (914) 723-5659

Enumeration date May 2, 2011

Last updated in NPPES May 2, 2011

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 138509 (NY) Primary

Authorized official

Name Marc Horowitz

Title President

Phone (914) 723-5511

Other identifiers

Identifier	Type	State	Issuer
0770498	Medicaid	NY	-

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 is the NPI number for Marc Andrew Horowitz MD PC?

The NPI for Marc Andrew Horowitz MD PC is 1841581360, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Marc Andrew Horowitz MD PC?

NPPES lists Marc Horowitz (President) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-02.