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Mount Sinai South Nassau
Hospital Oceanside, NY
One Healthy Way, Oceanside, NY 11572 · (516) 632-3000
Overall star rating 3
Patient survey rating 2
Hospital typeAcute Care Hospitals
OwnershipVoluntary non-profit - Private
Emergency servicesYes
62% would definitely recommend
✓ Meets the CMS criteria for the birthing-friendly designation
How its results compare with the national rate
Number of measures in each group where CMS found this hospital better than, no different from or worse than the national rate.
| Measure | Better | No different | Worse |
|---|---|---|---|
| Mortality | 3 | 4 | 0 |
| Safety of care | 1 | 7 | 0 |
| Readmissions | 1 | 7 | 2 |
What patients said
- Rated the hospital 9 or 10: 61%
- Nurses always communicated well: 75%
- Doctors always communicated well: 76%
- Room and bathroom always clean: 57%
- Always quiet at night: 45%
- Given information about recovery at home: 81%
861 completed surveys
Other options nearby
- Mercy Medical Center
1.6 mi away5★ - North Shore University Hospital
11.2 mi away5★ - St Francis Hospital - the Heart Center
11.2 mi away5★ - New York-Presbyterian/queens
12.6 mi away5★ - Long Island Jewish Medical Center
6.9 mi away4★ - Plainview Hospital
12.8 mi away4★
Ratings describe past performance reported to CMS and can change. Confirm insurance, availability and services directly with the provider, and talk to your doctor or care team. Source: CMS Provider Data Catalog, Hospital General Information; Patient survey (HCAHPS) (released Jul 22, 2026).