Saint Mary's Hospital in Waterbury, CT
In a medical emergency, call 911. This page is for information only.
About Saint Mary's Hospital
Saint Mary's Hospital is an acute care hospital in Waterbury, New Haven County, Connecticut. It reports its ownership to Medicare as nonprofit (church-affiliated). It provides emergency services. It is listed as a Level III trauma center. Its CMS Overall Hospital Quality Star Rating is 3 out of 5. It has 347 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 Waterbury Hospital, about 1.2 mi away.
Quality ratings
How this hospital compares with the national rate on each measure group:
Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.
Emergency room times
Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.
Infections and sepsis care
- MRSA bloodstream infectionsNo different · SIR 0.00
- Catheter-associated urinary tract infections (CAUTI)No different · SIR 0.73
- Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.35
- Central line bloodstream infections (CLABSI)No different · SIR 0.24
- Surgical site infections after colon surgeryNo different · SIR 0.47
74% 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.
What patients say
- Patient survey star rating
- Would definitely recommend60%
- Rated the hospital 9 or 1058%
- Completed surveys503
Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.
Map
41.55296, -73.03695
Nearby hospitals
- Waterbury Hospital64 Robbins St, Waterbury, CT · Level III traumaAcute care hospital1.2 mi
- Hospital of Central Connecticut Bradley Memorial Campus81 Meriden Avenue, Southington, CT · Emergency roomHospital8.9 mi
- Bristol Hospital41 Brewster Rd, Bristol, CT · Emergency roomAcute care hospital10 mi
- Gaylord Hospital IncGaylord Farm Rd, Wallingford, CTLong-term care hospital11 mi
- Midstate Medical Center435 Lewis Avenue, Meriden, CT · Emergency roomAcute care hospital12 mi
- Masonicare Health Center22 Masonic Ave Bldg Sturges, Wallingford, CTPsychiatric hospital13 mi
- The Hospital of Central Connecticut100 Grand Street, New Britain, CT · Emergency roomAcute care hospital15 mi
- Griffin Hospital130 Division St, Derby, CT · Emergency roomAcute care hospital15 mi
- Hospital for Special Care2150 Corbin Ave, New Britain, CTLong-term care hospital15 mi
- John Dempsey Hospital of the University of Connect263 Farmington Ave, Farmington, CT · Emergency roomAcute care hospital16 mi
Frequently asked questions
Where is Saint Mary's Hospital located?
Saint Mary's Hospital is at 56 Franklin Street, Waterbury, CT 06706 in New Haven County.
Does Saint Mary's Hospital have an emergency room?
Yes. Saint Mary's Hospital reports emergency services to Medicare, and patients spent a median of 249 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.
What is the CMS star rating of Saint Mary's Hospital?
Saint Mary's Hospital has a CMS Overall Hospital Quality Star Rating of 3 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 Saint Mary's Hospital a trauma center?
Yes. It is listed as a Level III 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 Connecticut 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 Saint Mary's Hospital?
The main phone number on record with Medicare is (203) 709-6020.
Would patients recommend Saint Mary's Hospital?
In the most recent HCAHPS patient survey (503 completed surveys), 60% of patients said they would definitely recommend the hospital, and 58% rated it 9 or 10 out of 10.
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