Markets / New York / Mount Sinai South Nassau

Hospital · Short-term acute hospital

Who owns Mount Sinai South Nassau?

One Healthy Way · Oceanside, NY · 11572

Operator, owner, quality, finances and services are in the full report. See pricing or sign in.

Overview

Beds368

Mount Sinai South Nassau is a short-term acute hospital in Oceanside, New York.

Ownership

Ownership type
Private Nonprofit

Operator and owner

Who operates Mount Sinai South Nassau, the group or system that owns it, partner owners and managers, recent ownership changes, and the source and date for each.

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Finances

Finances and payer mix

Net patient revenue, expenses, margin, uncompensated and charity care, and payer mix from the Medicare cost report.

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Services

Top Medicare services

The leading inpatient and outpatient services by Medicare volume, with average payments.

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Location and market

Address
One Healthy Way · Oceanside, NY · 11572
State
New York

10 off-site locations

Campuses, off-site emergency departments and outpatient departments under this hospital's certification.

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Sources and identifiers

  • Finances and payer mix: CMS hospital cost reports (HCRIS), fiscal year 2024
  • Services: CMS Medicare inpatient and outpatient utilization
  • Ownership type and beds: CMS Provider of Services file
  • Location: CMS and Census Bureau geography
CMS certification number
330198
NPI
1922079094
Last confirmed
2026-10-27

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Who owns Mount Sinai South Nassau, Oceanside NY: owner and operator (as of Oct 2026)