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Acute care hospital Emergency roomLevel I trauma

Suny/Stony Brook University Hospital in Stony Brook, NY

Also known as Stony Brook University Hospital

Directions (631) 444-4000 stonybrookmedicine.edu

In a medical emergency, call 911. This page is for information only.

Overview

About Suny/Stony Brook University Hospital

Suny/Stony Brook University Hospital is an acute care hospital in Stony Brook, Suffolk County, New York. It reports its ownership to Medicare as public (state government). It provides emergency services. It is listed as a Level I adult, Level I pediatric trauma center. Its CMS Overall Hospital Quality Star Rating is 5 out of 5. It has 624 licensed beds, according to state license data via HIFLD. It meets the CMS Birthing-Friendly designation criteria for maternity care. The nearest other listed hospital is John T Mather Memorial Hospital of Port Jefferson, about 3.9 mi away.

CMS Care Compare

Quality ratings

5
Overall Hospital Quality Star Rating, out of 5

How this hospital compares with the national rate on each measure group:

Mortality
4 better · 4 no different
Deaths within 30 days for conditions such as heart attack, heart failure, pneumonia and stroke.
Safety of care
4 better · 4 no different
Infections and complications acquired in the hospital.
Readmission
9 no different · 2 worse
Unplanned returns to the hospital after discharge.

Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.

Emergency department

Emergency room times

223 min
Median time in the ER before leaving (OP-18b)
1.0%
Left before being seen (OP-22)
very high
Emergency department volume

Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.

Safety of care

Infections and sepsis care

  • MRSA bloodstream infectionsNo different · SIR 0.75
  • Catheter-associated urinary tract infections (CAUTI)Better than national · SIR 0.44
  • Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.29
  • Central line bloodstream infections (CLABSI)Better than national · SIR 0.43
  • Surgical site infections after abdominal hysterectomyNo different · SIR 0.00
  • Surgical site infections after colon surgeryNo different · SIR 1.43

68% of patients with severe sepsis or septic shock received all the recommended early care steps (SEP-1). Higher is better.

SIR is the standardized infection ratio: below 1 means fewer infections than predicted for a hospital like this one. Period ending September 2025. Source: CMS Healthcare-Associated Infections and Timely and Effective Care.

HCAHPS survey

What patients say

  • Patient survey star rating
  • Would definitely recommend70%
  • Rated the hospital 9 or 1067%
  • Completed surveys2,286

Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.

Map

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40.90854, -73.11471

Within 25 miles

Nearby hospitals

Frequently asked questions

Where is Suny/Stony Brook University Hospital located?

Suny/Stony Brook University Hospital is at Health Sciences Center Suny, Stony Brook, NY 11794 in Suffolk County.

Does Suny/Stony Brook University Hospital have an emergency room?

Yes. Suny/Stony Brook University Hospital reports emergency services to Medicare, and patients spent a median of 223 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.

What is the CMS star rating of Suny/Stony Brook University Hospital?

Suny/Stony Brook University Hospital has a CMS Overall Hospital Quality Star Rating of 5 out of 5. The rating combines measures of mortality, safety of care, readmission, patient experience and timely and effective care, compared with hospitals nationwide.

Is Suny/Stony Brook University Hospital a trauma center?

Yes. It is listed as a Level I adult, Level I pediatric trauma center in the HIFLD hospitals data, which is compiled from state trauma registries (source date April 2024). Trauma designations are renewed periodically, so confirm with the New York EMS or trauma program. In an emergency, call 911: paramedics take seriously injured patients to the right trauma center.

What is the phone number of Suny/Stony Brook University Hospital?

The main phone number on record with Medicare is (631) 444-4000.

Would patients recommend Suny/Stony Brook University Hospital?

In the most recent HCAHPS patient survey (2,286 completed surveys), 70% of patients said they would definitely recommend the hospital, and 67% rated it 9 or 10 out of 10.

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