For its top 15 health systems rankings, IBM Watson Health researchers evaluated 324 health systems and 2,522 member hospitals. Research was based on the public data sets: Medicare cost reports, Medicare provider analysis and review data and core measures and patient satisfaction data from the CMS Hospital Compare website.
Fortune/IBM Watson Health note that hospitals and health systems do not apply for the recognition, and recognized organizations do not pay to market the distinction.
The Fortune/IBM Watson Health 100 top hospitals are divided into three categories. Each category and its ranked hospitals for 2021 are listed below. Find the complete listing of Fortune/IBM Watson Health’s top 15 health systems for 2021 here.
5 top large health systems
- Mayo Clinic (Rochester, Minn.)
- HCA Continental Division/HealthONE (Denver)
- Avera Health (Sioux Falls, S.D.)
- Allina Health (Minneapolis)
- Sentara Healthcare (Norfolk, Va.)
5 top medium health systems
- Edward-Elmhurst Health (Naperville, Ill.)
- St. Luke’s Health System (Boise, Idaho)
- St. Luke’s University Health Network (Bethlehem, Pa.)
- HealthPartners (Bloomington, Minn.)
- Main Line Health (Bryn Mawr, Pa.)
5 top small health systems
- Asante (Medford, Ore.)
- Saint Alphonsus Health System (Boise, Idaho)
- MountainStar Healthcare (Cottonwood Heights, Utah)
- Aspirus (Wausau, Wis.)
- Genesis Health System (Davenport, Iowa)
