Short-term acute care hospital · Bay Shore, New York · 324 beds · CMS certification number 330043
South Shore University Hospital
Its Medicare cost reports, read cell by cell. Latest filing: fiscal year ended December 31, 2025, as submitted, stamped by CMS June 25, 2026. 30 years on file, every one shown below. Also on the 340B covered-entity register.
Fiscal 2025 at a glance
What stands out
- Net patient revenue rose from $103.9M in its first year on file (1996) to $915.4M in 2025.
- Its result from patient care: −$275.8M (2023), −$314.7M (2024), −$317.3M (2025).
- 3 of the 5 short-term acute care hospital peers below with a margin on file also report a loss on patient care for fiscal year 2025.
- Medicaid paid for 7.8% of its inpatient days and Medicare for 30.5%.
- NORTHWELL HEALTH INC holds 100% of it, on its Medicare enrollment.
Every statement is drawn from figures on this page; nothing is estimated.
30 years of filings
Net patient revenue against operating expenses, each year as filed.
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Beside its peers
Short-term acute care hospitals in New York with 200 to 399 beds, each on fiscal year 2025.
| Hospital | Beds | Net patient revenue | Operating expenses | Margin |
|---|---|---|---|---|
| South Shore University Hospital | 324 | $915,404,523 | $1,232,753,081 | −34.7% |
| Garnet Health Medical Center, Middletown | 329 | $619,187,610 | $649,753,229 | −4.9% |
| Mercy Hospital of Buffalo, Buffalo | 351 | $558,744,706 | $555,411,433 | 0.6% |
| St. Francis Hospital & Heart Center, Roslyn | 321 | $1,020,401,292 | $1,018,413,773 | 0.2% |
| St. John's Riverside Hospital, Yonkers | 319 | $252,296,817 | $417,155,931 | −65.3% |
| Vassar Brothers Medical Center, Poughkeepsie | 345 | $900,194,977 | $913,376,684 | −1.5% |
Patients and payers
- Discharges
- 24,051S-3 line 14, col 15
- Inpatient days
- 114,166S-3 line 14, col 8
- Beds in use, on an average day
- 313.6days ÷ days in year
- Occupancy
- 96.5%days ÷ bed days
- Medicare share of days
- 30.5%S-3 cols 6 ÷ 8
- Medicaid share of days
- 7.8%S-3 cols 7 ÷ 8
Who owns it
- NORTHWELL HEALTH INC100%
- NORTHWELL HEALTHCARE INC100%
- NORTHWELL, INC.100%
Related organizations on its own cost report: NORTHWELL HEALT, not-for-profit; NORTHWELL CORE, lab services; REGION CARE INC, homecare staffi; NS COMM SVCES, real estate sv; REGIONAL CLAIMS, collection agen.
Other hospitals with the same owner: Sharon Hospital (CT), Danbury Hospital (CT), Norwalk Hospital (CT), Vassar Brothers Medical Center (NY), Huntington Hospital Association (NY), Northern Dutchess Hospital (NY), North Shore University Hospital (NY), Peconic Bay Medical Center (NY).
Type of control on its cost report: voluntary nonprofit, other.
Owners of 5% or more, from CMS’s hospital ownership file (Medicare enrollment, October 1, 2026).
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Figures: CMS Healthcare Cost Report Information System, file HOSP10FY2025.ZIP, form CMS-2552-10, filed under CMS certification number 330043. Patients and payers: worksheet S-3 Part I of the same filing. Ownership: CMS Hospital All Owners and Hospital Enrollments.
How this page was built: the CMS Medicare cost report, file HOSP10FY2025.ZIP, read June 25, 2026.