Northern Westchester Hospital Association
NPI 1285891457 · Internal Medicine Physician · Mount Kisco, NY
Northern Westchester Hospital Association is a Internal Medicine Physician organization in Mount Kisco, NY (NPI 1285891457).
Provider details
- NPI number
- 1285891457
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Northern Westchester Hospital Association
- Organization subpart
- Yes
- Authorized official
- John Partenza, Chief Financial Officer(914) 666-1310
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Hospitalist Physician208M00000X
Allopathic & Osteopathic Physicians
- Medical-Surgical Registered Nurse163WM0705X
Nursing Service Providers
Allopathic & Osteopathic Physicians
- Family Nurse Practitioner363LF0000X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- Hospitalist Department
Registry dates
- Enumerated
- 2008-05-16
- 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 1285891457, 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 Internal Medicine 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) 666-1680.
- 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, Chief Financial Officer. 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 (1285891457) 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.