Suny/Stony Brook University Hospital
Stony Brook, NY · Suffolk County · Acute Care Hospitals · CMS 5 stars · April 2026
What is Suny/Stony Brook University Hospital's hospital quality rating?
As of April 2026, Suny/Stony Brook University Hospital in Stony Brook, NY holds a CMS Overall Star Rating of 5 stars — the official rating published by the Centers for Medicare & Medicaid Services. Its Gera US Hospital Quality Index (GUHQI) is 95/100, in the "Exceptional" tier, derived from real CMS mortality, readmission, and HCAHPS data.
| CMS measure | Value | Context |
|---|---|---|
| Overall Star Rating | 5 stars (of 5) | CMS official composite quality rating |
| Gera US Hospital Quality Index | 95 / 100 | Exceptional tier — see methodology |
| Hospital type | Acute Care Hospitals | |
| Ownership | Government - State | |
| Emergency services | Yes | |
| Mortality measures better than national | 4 | Statistically better than US average rate |
| Mortality measures worse than national | 0 | Statistically worse than US average rate |
| Readmission measures better than national | 0 | Statistically better than US average rate |
| Readmission measures worse than national | 2 | Statistically worse than US average rate |
| HCAHPS patient-experience measures | 15 | Number of measures reported (max 15) |
CMS Facility ID (CCN): 330393. View the full profile on CMS Hospital Care Compare. Ratings can be several months old — always check the latest detail before making any healthcare decision.
Rank the top hospitals in any US state
Pick a state to see its highest-GUHQI hospitals, their real CMS star ratings, and links to their individual quality profiles.
Top hospital in New York by GUHQI
Hospital For Special Surgery
3 readmission measures better than national rate.
View Hospital For Special Surgery quality profile →Top 10 hospitals in New York by Gera US Hospital Quality Index (April 2026)
- 1.Hospital For Special SurgeryNew York, NY100/1005 stars
- 2.John T Mather Memorial Hospital Of Port JeffersonPort Jefferson, NY100/1005 stars
- 3.Lenox Hill HospitalNew York, NY100/1005 stars
- 4.New York-Presbyterian/QueensFlushing, NY100/1005 stars
- 5.Northwell Hospital Glen CoveGlen Cove, NY100/1005 stars
- 6.St Charles HospitalPort Jefferson, NY100/1005 stars
- 7.Hudson Valley Hospital CenterCortlandt Manor, NY97.3/1005 stars
- 8.Northern Westchester HospitalMount Kisco, NY97.3/1005 stars
- 9.Mercy Medical CenterRockville Centre, NY97/1005 stars
- 10.St Catherine Of Siena HospitalSmithtown, NY96.1/1005 stars
Rankings use the Gera US Hospital Quality Index (GUHQI), a transparent 0–100 score derived from CMS Overall Star Ratings, mortality outcomes, readmission outcomes, and HCAHPS coverage. See the full formula. Only hospitals with an official CMS star rating (4 or 5 stars) are listed. Check the latest data on CMS Hospital Care Compare before making any healthcare decision.
Other top-rated hospitals in New York
- Hospital For Special Surgery(New York)GUHQI 100 · 5 stars
- John T Mather Memorial Hospital Of Port Jefferson(Port Jefferson)GUHQI 100 · 5 stars
- Lenox Hill Hospital(New York)GUHQI 100 · 5 stars
- New York-Presbyterian/Queens(Flushing)GUHQI 100 · 5 stars
- Northwell Hospital Glen Cove(Glen Cove)GUHQI 100 · 5 stars
Frequently asked questions
- What is Suny/Stony Brook University Hospital's CMS star rating?
- As of April 2026, Suny/Stony Brook University Hospital in Stony Brook, NY holds a CMS Overall Star Rating of 5 stars — the official quality rating published by the Centers for Medicare & Medicaid Services (CMS) on Hospital Care Compare.
- What is the Gera US Hospital Quality Index score for Suny/Stony Brook University Hospital?
- The Gera US Hospital Quality Index (GUHQI) for Suny/Stony Brook University Hospital is 95/100, placing it in the "Exceptional" tier. The GUHQI is a transparent composite of CMS star rating, mortality outcomes, readmission outcomes, and HCAHPS patient-experience coverage.
- How does Suny/Stony Brook University Hospital perform on mortality and readmission?
- Suny/Stony Brook University Hospital has 4 mortality measures statistically better than the national rate and 0 worse, plus 0 readmission measures better and 2 worse, per CMS Hospital Care Compare (April 2026).
- Is Suny/Stony Brook University Hospital a good hospital?
- Suny/Stony Brook University Hospital holds a CMS 5 stars — one of the highest ratings awarded by the U.S. government's official hospital comparison tool. Its Gera US Hospital Quality Index of 95/100 (Exceptional) reflects strong performance on multiple CMS quality measures. Always consult CMS Hospital Care Compare and your own clinician before making any healthcare decision.
- What does the CMS star rating measure?
- The CMS Overall Star Rating is a 1–5 summary of hospital quality across five groups of measures: mortality, safety of care, readmission, patient experience (HCAHPS), and timely & effective care. CMS computes it via a latent-variable methodology, weighting mortality and readmission most heavily.
- When was this data last updated?
- This page reflects CMS Hospital Care Compare data as of April 2026. CMS updates the dataset periodically. Gera re-dates these pages whenever a new CMS release is available. The current GUHQI computation used the CMS API snapshot downloaded on 19 June 2026.
Preparing for care at Suny/Stony Brook University Hospital?
Suny/Stony Brook University Hospital holds a CMS 5 stars and a Gera US Hospital Quality Index of 95/100 (Exceptional). A GeraClinic care navigator can help you interpret this data, prepare questions for your provider, and navigate your next step — with a clinician available online.
Contains public sector information published by Centers for Medicare & Medicaid Services and licensed under the U.S. Public Domain (federal government work). Source: Centers for Medicare & Medicaid Services — Hospital Care Compare (Hospital General Information) (April 2026, published 28 April 2026).
Informational/educational only — not a substitute for professional medical advice; a clinician interprets results.