Complications & Deaths Measures
20
CMS-tracked
New York · Acute Care
Northern Westchester Hospital holds a 5 of 5 CMS overall star rating - above the national average of 3.1 - in Mount Kisco, NY.
Data currency: Hospital quality, safety, and patient-experience measures from the CMS Care Compare program (published quarterly), last refreshed May 2026. See our methodology for source dates. Spot a figure that looks wrong? Report a correction.
400 East Main Street, Mount Kisco, NY 10549 · Westchester County · (914) 666-1200
The verdict
Northern Westchester Hospital earns 5 of 5 stars from CMS - above the 3.1-star national average, and reports 2 quality measures better than the national benchmark.
Where Northern Westchester Hospital sits among rated US hospitals
5 Top 10% higher than 90% of 2,866 rated hospitals
Each bar is a band; taller bars hold more rated hospitals. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Hospital Compare, overall hospital rating · 2026-05-15
Northern Westchester Hospital
5 stars
New York state average
2.5 stars
National average
3.1 stars
What this shows At 5 stars, Northern Westchester Hospital rates above the New York average of 2.5 and above the national average of 3.1.
Complications & Deaths Measures
20
CMS-tracked
Patient Experience
17
HCAHPS domains
Infection Types
6
CDC NHSN
5 of 5 stars
| Measure | Score | vs. National |
|---|---|---|
| Abdominopelvic accidental puncture or laceration rate | 1.24 | Same as National |
| CMS Medicare PSI 90: Patient safety and adverse events composite | 0.86 | Same as National |
| Death rate among surgical inpatients with serious treatable complications | 144.56 | Same as National |
| Death rate for CABG surgery patients | N/A | Not Available |
| Death rate for COPD patients | 6.3 | Same as National |
| Death rate for heart attack patients | 9.9 | Same as National |
| Death rate for heart failure patients | 9.1 | Same as National |
| Death rate for pneumonia patients | 14.5 | Same as National |
| Death rate for stroke patients | 10.7 | Same as National |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate | 3.6 | Better than National |
| Iatrogenic pneumothorax rate | 0.15 | Same as National |
| In-hospital fall-associated fracture rate | 0.26 | Same as National |
| Perioperative pulmonary embolism or deep vein thrombosis rate | 2.88 | Same as National |
| Postoperative acute kidney injury requiring dialysis rate | 1.92 | Same as National |
| Postoperative hemorrhage or hematoma rate | 2.51 | Same as National |
Source: CMS Hospital Compare, HCAHPS patient survey star ratings.
| Survey Question | Star Rating |
|---|---|
| Cleanliness - linear mean score | N/A |
| Cleanliness - star rating | 3 |
| Communication about medicines - linear mean score | N/A |
| Communication about medicines - star rating | 3 |
| Discharge information - linear mean score | N/A |
| Discharge information - star rating | 3 |
| Doctor communication - linear mean score | N/A |
| Doctor communication - star rating | 4 |
| Nurse communication - linear mean score | N/A |
| Nurse communication - star rating | 4 |
| Overall hospital rating - linear mean score | N/A |
| Overall hospital rating - star rating | 4 |
| Quietness - linear mean score | N/A |
| Quietness - star rating | 3 |
| Recommend hospital - linear mean score | N/A |
| Recommend hospital - star rating | 5 |
| Summary star rating | 4 |
| Measure | Score | vs. National |
|---|---|---|
| Catheter Associated Urinary Tract Infections (ICU + select Wards) | 0.324 | Same as National |
| Central Line Associated Bloodstream Infection (ICU + select Wards) | 0 | Same as National |
| Clostridium Difficile (C.Diff) | 0.074 | Better than National |
| MRSA Bacteremia | 0 | Same as National |
| SSI - Abdominal Hysterectomy | 0 | Same as National |
| SSI - Colon Surgery | 0.666 | Same as National |
| Measure | Score | vs. National |
|---|---|---|
| Acute Myocardial Infarction (AMI) 30-Day Readmission Rate | 14 | Same as National |
| Heart failure (HF) 30-Day Readmission Rate | 18.4 | Same as National |
| Hospital return days for heart attack patients | 13.9 | Average Days per 100 Discharges |
| Hospital return days for heart failure patients | -14 | Fewer Days Than Average per 100 Discharges |
| Hospital return days for pneumonia patients | 26.6 | More Days Than Average per 100 Discharges |
| Hybrid Hospital-Wide All-Cause Readmission Measure (HWR) | 14.1 | Same as National |
| Pneumonia (PN) 30-Day Readmission Rate | 16.7 | Same as National |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy | 5.2 | Same as National |
| Rate of inpatient admissions for patients receiving outpatient chemotherapy | 11.2 | Same as National |
| Rate of readmission after hip/knee replacement | 5.2 | Same as National |
| Rate of readmission for CABG | N/A | Not Available |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patients | 18.5 | Same as National |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies) | 11.9 | Same as National |
| Ratio of unplanned hospital visits after hospital outpatient surgery | 1.1 | Same as National |
| Measure | Score |
|---|---|
| Medicare hospital spending per patient (Medicare Spending per Beneficiary) | 0.94 |
| Measure | Score |
|---|---|
| Cesarean Birth | N/A |
| Maternal Morbidity Structural Measure | N/A |
| Risk Adjusted Severe Obstetric Complications (All) | N/A |
| Risk Adjusted Severe Obstetric Complications (excluding blood-transfusion-only cases) | N/A |
Other Medicare-certified hospitals in New York.
Compare Northern Westchester Hospital vs Adirondack Medical Center - Saranac Lake →
Northern Westchester Hospital has an overall CMS star rating of 5 out of 5, above the 3.1-star national average.
2 of 24 compared mortality, safety, and readmission measures rate better than the national average at Northern Westchester Hospital; 0 rate worse.
Northern Westchester Hospital reports 17 HCAHPS patient-experience domain scores. Star ratings range from 3 to 5 out of 5.
Northern Westchester Hospital tracks 6 healthcare-associated infection types (CDC NHSN). 1 are better than the national benchmark, 0 are worse, and 5 are at the national average.
Yes, Northern Westchester Hospital provides emergency services.
Northern Westchester Hospital is a Acute Care Hospitals facility with Voluntary non-profit - Private ownership, located in Mount Kisco, NY. This facility has received the CMS Birthing-Friendly designation.
1 Medicare spending category is on file for Northern Westchester Hospital, per episode vs. the national median.
Yes, Northern Westchester Hospital reports 4 maternal health measures. This facility has been designated as Birthing-Friendly by CMS.
Source: Centers for Medicare & Medicaid Services (CMS) Hospital Compare. Last refreshed from CMS: . About PlainHospital
Read our methodology & full data source list
Every figure on PlainHospital is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.