What is the 100 Top Hospitals program?

The 100 Top Hospitals program produces three annual studies on health system and hospital outcomes performance. Additional studies and consulting services are available to facilitate improvement.

The winners

15 Top Health Systems

Rolls member hospital outcomes scores into a system performance score and evaluates the consistency of member hospitals.

100 Top Hospitals

Provides a balanced measure of hospital outcomes (such as inpatient and extended clinical outcomes) with a composite score for overall performance.

50 Top Cardiovascular Hospitals

Measures hospital outcomes and calculates a composite score for certain cardiovascular admissions.

Our methodology

Providing a holistic view

Each study includes multiple performance measures that ultimately yield the composite scores for ranking each hospital or health system. Use the boxes below to explore the details.


Organizations are included in the Watson Health 100 Top Hospitals® program studies based solely data availability from Medicare and meeting the criteria detailed in the executive summary for each study:

15 Top Health Systems (PDF, 1.4 MB)

100 Top Hospitals (PDF, 1.6 MB)

50 Top Cardiovascular Hospitals (PDF, 873 KB)

Hospitals do not apply or pay to participate in the studies, nor do winners pay to promote their award.To uphold the integrity of the study, it is the policy of IBM Watson Health to revoke a 100 Top Hospitals award if hospital data is found to be inaccurate or misleading for any 100 Top Hospitals data source. At the sole discretion of IBM Watson Health, the circumstances under which an award could be revoked include, but are not limited to, inaccurate data and agency investigations or sanctions.