Ascension St. John is celebrating milestones in clinical excellence with both Ascension St. John Owasso and Ascension St. John Broken Arrow earning top marks from the Centers for Medicare & Medicaid Services (CMS) 2026 Overall Hospital Quality Star Ratings. These ratings, which assess quality of care, patient safety and patient experience, are essential for patients and families making informed healthcare decisions.
In a milestone for the facility, Ascension St. John Owasso earned its first-ever CMS 5-star rating. This designation places the hospital among an elite group, as it is one of only seven hospitals in Oklahoma to receive a 5-star rating.
“This achievement represents the incredible dedication of our associates who provide high-quality care for our patients each and every day,” said Mark Clay, President of Ascension St. John Owasso. “I am grateful to the outstanding team at St. John Owasso for continuing our mission of bringing health, healing and hope to all.”
Ascension St. John Broken Arrow also received notable recognition, achieving a CMS 4-star rating. Both the Owasso and Broken Arrow hospital ratings reflect a broader commitment to clinical excellence and patient experience across the entire Ascension St. John ministry. These achievements are a direct result of associates, physicians, and leaders working together to improve patient outcomes and provide the highest standards of care.
The CMS Overall Hospital Quality Star Ratings are derived from 46 publicly reported quality measures across five quality domains: Mortality, Patient Experience, Readmission, Safety of Care, and Timely and Effective Care. These quality measures are aggregated and a single composite star rating is assigned by CMS for each hospital, with five stars indicating the highest level of hospital performance. CMS requires all hospitals participating in Medicare to collect data for each quality measure, which are reported on Care Compare.
