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Sleepy Hollow Medical Group@Phelps

Obstetrics & Gynecology Physician in Sleepy Hollow, NY · enumerated 2006 · authorized official Lawrence Mendelowitz, Partner Owner.

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

National Provider Identifier

1063580249

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Registry record

Entity type Organization (Type 2)
Legal business name Sleepy Hollow Medical Group@Phelps
Other name <Unavail>
Practice address 755 N Broadway, Suite 560, Sleepy Hollow, NY, 10591
Phone (914) 631-0337
Fax (914) 631-0552
Enumeration date Dec 4, 2006
Last updated in NPPES May 6, 2009

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Lawrence Mendelowitz
Title Partner Owner
Phone (914) 631-0337

Other identifiers

Identifier Type State Issuer
01640528 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

Who is the authorized official for Sleepy Hollow Medical Group@Phelps?
NPPES lists Lawrence Mendelowitz (Partner Owner) as the authorized official for this organization.
What is the NPI number for Sleepy Hollow Medical Group@Phelps?
The NPI for Sleepy Hollow Medical Group@Phelps is 1063580249, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-06.