Northern Westchester Hospital Association
NPI 1689735870 · Radiation Oncology Physician · Mount Kisco, NY
Northern Westchester Hospital Association is a Radiation Oncology Physician organization in Mount Kisco, NY (NPI 1689735870).
Provider details
- NPI number
- 1689735870
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Northern Westchester Hospital Association
- Organization subpart
- Yes
- Authorized official
- John Partenza, Cfo(914) 666-1310
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Other name
- Radiation Oncology
Registry dates
- Enumerated
- 2006-12-12
- Last updated
- 2013-12-06
Frequently asked questions
- What is Northern Westchester Hospital Association's NPI number?
- Northern Westchester Hospital Association's National Provider Identifier (NPI) is 1689735870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Northern Westchester Hospital Association?
- Northern Westchester Hospital Association is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Northern Westchester Hospital Association located?
- Northern Westchester Hospital Association's practice location on file with NPPES is 400 E Main St, Mount Kisco, NY 10549-3417.
- What is Northern Westchester Hospital Association's phone number?
- The practice phone number listed in the NPPES registry for Northern Westchester Hospital Association is (914) 242-8115.
- Who is the authorized official for Northern Westchester Hospital Association?
- The authorized official listed on Northern Westchester Hospital Association's NPPES record is John Partenza, Cfo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Northern Westchester Hospital Association's NPI active?
- Yes — Northern Westchester Hospital Association's NPI (1689735870) is active in the NPPES registry as of the last update on 2013-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.