Hospital Compare datasets
These are the official datasets used on the Medicare.gov Hospital Compare Website provided by the Centers for Medicare & Medicaid Services. These data allow you to compare the quality of care at over 4,000 Medicare-certified hospitals across the country.
Hospital Compare data was last updated on Oct 31, 2018.
Announcements:
- The January refresh of Hospital Compare will move to February. Please check back for updates.
- CMS did not update Hospital Compare Overall Hospital Quality Star Rating data in July 2018. Visit QualityNet for more information. Please submit questions to cmsstarratings@lantanagroup.com.
- In July, CMS added two new measures to Hospital Compare: Hospital return days for pneumonia patients (EDAC-30_PN) and Percentage of patients who received appropriate care for severe sepsis and septic shock (SEP-1). The following measure was added to the downloadable database only: Average time patients spent in the emergency department before being sent home (OP-18c).
- CMS is no longer reporting the HCAHPS pain measure from Hospital Compare and the downloadable databases, and has excluded it from the calculation of the HCAHPS Summary Star Rating.
- Diagnosis coding switched from ICD-9 to ICD-10 in 2015. Data for the FY 2018 recalibrated Patient Safety Indicator (PSI) measures only represent the 21-month performance period of ICD-9 claims (10/1/2015 – 6/30/2017).
- VA outcomes data have been incorporated into the workflow. Please note data collection periods are different for VA hospitals for the following measure groups: PSIs, 30-day readmission rates, and 30-day death (mortality) rates. Visit Hospital Compare for details on the data collection periods.
- For questions about the Hospital Compare data, contact HospitalCompare@lantanagroup.com
- Get help using Data.Medicare.gov.
- Get the latest updates on the data.