Mount Sinai South Nassau
Acute care hospital in Oceanside, NY · 435 certified beds · part of Mount Sinai Health System.
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Mount Sinai South Nassau at a glance
- Hospital
- Mount Sinai South Nassau
- Location
- Oceanside, NY 11572
- Address
- One Healthy Way
- Phone
- (516) 632-3000
- Type
- Acute care hospital
- Ownership
- Voluntary non-profit — Private
- Certified beds
- 435
- Operating rooms
- 17
- Cath procedure rooms
- 2
- Emergency services
- Yes
- Health system
- Mount Sinai Health System
- Corporate parent
- MOUNT SINAI HEALTH SYSTEM
- Teaching hospital
- Yes
- Annual discharges
- 17,351
- CMS CCN
- 330198
- NPI
- 1922079094
Services on record
Units and service lines this hospital reports operating, whether staffed directly or under arrangement. Service availability changes; verify independently.
- Intensive care unit
- Surgical ICU
- Neonatal ICU
- Shock/trauma unit
- Dedicated emergency department
- Obstetrics
- Neonatal nursery
- Pediatrics
- Cardiac catheterization lab
- Organ transplant
- Neurosurgery
- Orthopedic surgery
- Ophthalmic surgery
- Reconstructive surgery
- Chemotherapy
- MRI
- CT
- PET
- Nuclear medicine
- Therapeutic radiology
- Outpatient surgery unit
- Emergency psychiatric care
- Outpatient rehabilitation
52 cited deficiencies on record across all surveys, most recent survey 2025-12-12.
Citation counts scale with survey frequency and facility size, and say nothing on their own about current conditions.
Reference profile compiled from authoritative provider and facility records. Certification, capacity, ownership, and affiliations change over time. This is not an endorsement, and not billing, clinical, or legal advice. Verify against official sources before relying on it.