Mount Sinai South Nassau
Hospital · Oceanside, NY
CMS certification number330198
Contact & location
One Healthy WayOceanside, NY 11572
Nassau County
- Phone
- (516) 632-3000
- ZIP code
- 11572 – all care providers
Facility details
- Ownership
- Voluntary non-profit - Private
- Hospital type
- Acute Care Hospitals
- Emergency services
- Yes
Hospital quality
- Mortality measures
- 3 better than national · 0 worse
- Safety of care measures
- 1 better than national · 0 worse
- Readmission measures
- 1 better than national · 2 worse
- Birthing-friendly
- Y
Frequently asked questions
What is the rating of Mount Sinai South Nassau?
Mount Sinai South Nassau has a 3-star overall rating from the Centers for Medicare & Medicaid Services on a scale of 1 to 5.
What is the phone number of Mount Sinai South Nassau?
(516) 632-3000. The facility is located at One Healthy Way, Oceanside, NY 11572.
Source: CMS Care Compare, August 2026. Information is provided as published by CMS; verify details directly with the facility.