NORTHERN WESTCHESTER HOSPITAL ASSOCIATION
NORTHERN WESTCHESTER HOSPITAL ASSOCIATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1912992215, based in Mount Kisco, NY. The organization lists 2 taxonomy classifications, with General Acute Care Hospital recorded as primary.
Getting there
The practice address on file is 400 E MAIN ST NORTHERN WESTCHESTER HOSPITAL, Mount Kisco, NY 10549. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 5920000H | NY | General Acute Care Hospital primary |
| 6415020 | NY | Psychiatric Hospital Unit |
This provider holds licence 5920000H issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 9335040112
Enrolled in Medicare 3 times, across 1 state:
| State | Enrollment ID | Provider type |
|---|---|---|
| New York | O20040115000420 | Part B Supplier - Clinic/group Practice |
| New York | O20050513000175 | Part A Provider - Hospital |
| New York | O20120808000613 | Part A Provider - Hospital |
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. There are 3 separate enrolment records. Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What General Acute Care Hospital covers
An acute general hospital is an institution whose primary function is to provide inpatient diagnostic and therapeutic services for a variety of medical conditions, both surgical and non-surgical, to a wide population group. The hospital treats patients in an acute phase of illness or injury, characterized by a single episode or a fairly short duration, from which the patient returns to his or her normal or previous level of activity. NUCC Health Care Provider Taxonomy, code 282N00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 282N00000X | General Acute Care Hospital | 5920000H | NY | primary |
| 273R00000X | Psychiatric Hospital Unit | 6415020 | NY |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1912992215 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 13, 2005 |
| Last updated | Jul 29, 2025 |
| Status | Active |
| Practice address |
400 E MAIN ST NORTHERN WESTCHESTER HOSPITAL Mount Kisco, NY 10549 (914) 666-1200 Fax (914) 666-1055 |
| Other identifiers |
P012006002
· Other 00274144 · Medicaid (NY) 30729 · Other MVP HEALTHPLAN · Other 02997694 · Medicaid (NY) 1000003763 · Other 335869 · Other ID0007 · Other 940 · Other ID0007 · Other 10017300 · Other 3025541 · Medicaid (CT) 12917 · Other 12917 · Other |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 1 | 2 | 9 | 9 | 2 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 2 | 2 | 9 | 9 | 4 | 2 | 2 |
Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.