Only half of U.S. News and World Report’s top 10 heart centers received an “A” from Leapfrog’s spring 2026 safety rankings.
Leapfrog calculated hospital safety grades using up to 22 CMS patient safety measures, data from the Leapfrog Hospital Survey and supplemental imputation. Read more about the methodology here.
For spring 2026, safety grades were not assigned to the 450 hospitals that did not participate in the Leapfrog Hospital Survey in 2024 or 2025. Hospitals have pushed back on Leapfrog’s safety grades for years, arguing the methodology is flawed and unfairly penalizes hospitals that do not participate. Two hospitals filed similar lawsuits in 2017 and 2019, though the cases were eventually dismissed.
Here are the spring 2026 safety grades for the top 10 heart centers:
1. NYU Langone Hospitals (New York City) — A
2. The Mount Sinai Hospital (New York City) — B
3. Cleveland Clinic — C
4. Mayo Clinic Rochester (Minn.) — A
5. NewYork-Presbyterian Hospital-Columbia and Cornell (New York City) — A
6. Cedars-Sinai Medical Center (Los Angeles) — C
7. Northwestern Memorial Hospital at Northwestern Medicine (Chicago) — A
8. Massachusetts General Hospital (Boston) — A
9. Hospitals of the University of Pennsylvania-Penn Presbyterian (Philadelphia) — Declined to participate
10. Johns Hopkins Hospital (Baltimore) — B
Find these hospitals’ CMS star ratings here.
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