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Northern Westchester Hospital Association

Radiation Oncology Physician in Mount Kisco, NY · enumerated 2006 · authorized official John Partenza, Cfo.

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

National Provider Identifier

1689735870

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Registry record

Entity type Organization (Type 2)
Legal business name Northern Westchester Hospital Association
Other name <Unavail>
Parent organization Northern Westchester Hospital Association
Practice address 400 E Main St, Mount Kisco, NY, 10549
Phone (914) 242-8115
Fax (914) 242-8130
Enumeration date Dec 12, 2006
Last updated in NPPES Dec 6, 2013

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name John Partenza
Title Cfo
Phone (914) 666-1310

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 Northern Westchester Hospital Association?
The NPI for Northern Westchester Hospital Association is 1689735870, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Northern Westchester Hospital Association?
NPPES lists John Partenza (Cfo) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-06.