Business & Tech

Here Are CT's Safest Hospitals In 2025, And The Worst: New Rankings

A nonprofit group has released its hospital safety grades. See which CT hospitals are best — and worst — ranked.

CONNECTICUT — A new hospital safety report released Thursday shows 50 percent of hospitals in Connecticut earned “A” grades based on their ability to protect their patients from often preventable harm.

Among those hospitals cited in The Leapfrog Group’s Spring 2025 Hospital Safety Grades, 29 percent in Connecticut were designated “Straight A” hospitals for sustaining their top scores for five or more consecutive grading periods. Nationwide, 346 hospitals — 12 percent of all eligible hospitals — were named to this select group.

Related: These Are The Safest CT Hospitals, New Report Says

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The biannual reports from the independent hospital safety watchdog group assigns “A,” “B,” “C,” “D” or “F” grades to all U.S. general hospitals based on how well they prevent medical errors, accidents, injuries and infections. These mistakes harm one in four hospital patients and cause as many as 250,000 deaths every year.

Connecticut ranks No. 4 among all states for the percentage of hospitals receiving “A” grades in the spring 2025 report card. In the fall rankings, Connecticut ranked No. 3 on the fall report card.

Find out what's happening in Across Connecticutfor free with the latest updates from Patch.

Even more elite are 11 hospitals that have earned A grades or all 27 evaluation rounds over the 13 years of the report card. They include Mayo Clinic-Phoenix in Arizona; French Hospital Medical Center and Kaiser Permanente Orange County-Anaheim Medical Center in California; Endeavor Health Elmhurst Hospital, Northwestern Medicine Central DuPage Hospital and University of Chicago Medical Center in Illinois; Saint Anne’s Hospital (Massachusetts); Inova Loudoun Hospital, Sentara CarePlex Hospital and Sentara Leigh Hospital in Virginia; and Virginia Mason Medical Center in Washington.

Related: 4 CT Hospitals Among Best In The World, New Ranking Says


The elite “Straight A” hospitals in Connecticut cited for consistently high safety performance are:

  • Stamford Health, Stamford
  • MidState Medical Center, Meriden
  • Middlesex Hospital, Middletown
  • Windham Community Memorial Hospital, Willimantic
  • The William W. Backus Hospital, Norwich
  • Hartford Hospital, Hartford
  • St. Vincent's Medical Center, Bridgeport
  • University of Connecticut Health Center, John Dempsey Hospital, Farmington

Leah Binder, the president and chief executive of The Leapfrog Group, said “A” grades should be a source of pride for hospitals, but she warned them not to “rest on that laurel.”

“Patient safety is a relentless, never-ending quest to put patients first,” she said in a news release. “That’s why Leapfrog is highlighting the hospitals across the U.S. that have earned Straight A’s for over two years. Sustaining an A over multiple years reflects a deep-rooted commitment to patient safety.”


Other “A” hospitals in Connecticut are:

  • Sharon Hospital, Sharon
  • Johnson Memorial Hospital, Stafford Springs
  • Saint Mary's Hospital, Waterbury
  • Greenwich Hospital, Greenwich
  • Danbury Hospital, Danbury
  • The Hospital of Central Connecticut, New Britain

Hospitals receiving a "B" safety grade in Connecticut are:

  • Bridgeport Hospital
  • Bridgeport Hospital Milford Campus
  • Charlotte Hungerford Hospital
  • Griffin Hospital
  • Lawrence and Memorial Hospital
  • Norwalk Hospital
  • Yale-New Haven Hospital St. Raphael Campus

Hospitals receiving a "C" safety grade in Connecticut are:

  • Bristol Health
  • Day Kimball Hospital
  • Manchester Memorial Hospital
  • New Milford Hospital
  • St. Francis Hospital & Medical Center
  • Waterbury Hospital
  • Yale-New Haven Hospital

See also: 8-Year-Old Dies, Mourned By Many


The top five states with the highest share of Straight A hospitals since spring 2023 are Connecticut (29 percent), Utah (29 percent), New Jersey (27 percent), Rhode Island (22 percent) and Virginia (20 percent).

See Also: 6 Connecticut Hospitals In Top 5% Nationwide, Report Says

States with no Straight A hospitals for consistent performance over the past five grading cycles are Alaska, Delaware, Hawaii, Iowa, North Dakota, Nebraska, New Mexico, Nevada, South Dakota, Vermont, West Virginia, Wyoming and Washington, D.C.

The states with the highest percentage of A Grades for spring 2025 are Utah, Rhode Island, New Jersey, Connecticut, South Carolina and Virginia.

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