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Mass General Brigham Hospitals Earn High Grades for Patient Safety from Leapfrog Group

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3 female health professionals in masks

Mass General Brigham hospitals have once again been recognized with high marks for patient safety by the Leapfrog Group, an independent national watchdog organization committed to healthcare quality and safety. 

Brigham and Women’s Hospital, Massachusetts General Hospital, Newton-Wellesley Hospital, Salem Hospital, Cooley Dickinson Hospital and Wentworth-Douglass Hospital all received an “A” from the fall 2021 Leapfrog Hospital Safety Grade

The Hospital Safety Grade assigns an ‘A’, ‘B’, ‘C’, ‘D’ or ‘F’ grade to acute-care hospitals across the country and is updated every six months. The grades reflect performance on more than 30 evidence-based measures and are based on a hospital’s performance in preventing medical errors, injuries, accidents, infections, and other harms to patients in their care. 

The fall 2021 Hospital Safety Grade represents the largest set of hospitals ever graded with grades assigned to nearly 3,000 hospitals. The Hospital Safety Grade methodology is peer-reviewed, fully transparent, and the results are free to the public.

To learn more about the Leapfrog Safety Grades, visit