Kenmore Mercy Hospital received the Buffalo-Niagara region’s only “A” Safety Grade in the Leapfrog Group’s fall 2022 Hospital Safety Grade Report, which rates hospitals on how well they protect patients from preventable harm. It is the 18th consecutive “A” for Kenmore Mercy, which is the most of any hospital in New York State.

“We are extremely proud of our entire care team at Kenmore Mercy, who continue to raise the bar on quality and patient safety,” said Hospital President Walt Ludwig. “Through their hard work and focus on providing exceptional care, they have achieved a consistent level of excellence held by few hospitals.”

Catholic Health received the region’s highest overall safety score with Mercy Hospital of Buffalo and Sisters of Charity Hospital receiving the only “B” Safety Grades in Erie County. Mount St. Mary’s Hospital in Niagara County received a “C” grade, as did most other local hospitals.

“Through a culture of continuous improvement, we work every day to provide patients throughout our system with safe, high quality care,” said Hans Cassagnol, MD, MMM, Executive Vice President & Chief Physician Executive for Catholic Health. “Our Quality & Patient Safety teams and caregivers continue to look for opportunities to improve our grades with each new Leapfrog report.”

Founded more than 20 years ago by large employers and other major purchasers of healthcare, The Leapfrog Group is a national watchdog organization that collects and reports safety data for nearly 3,000 hospitals, giving consumers the information they need to make more informed healthcare decisions. This is the 10th anniversary for the Safety Grade Report, which is updated twice annually, in the spring and fall. The grades, ranging from A – F, are based on how well a hospital protects patients from preventable medical errors, injuries, accidents, and infections.

“Never in history have we seen across-the-board improvement in patient safety until this last decade, coinciding with the history of the Hospital Safety Grade,” said Leah Binder, President and CEO of The Leapfrog Group. “We salute hospitals for this milestone and encourage them to accelerate their hard work saving patient lives.”

To see the full list on Hospital Safety Grades and learn how to stay safe in the hospital, visit

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