Care Facts
5,419 U.S. hospitals and 478,010 CMS quality measures — overall ratings, complications, readmissions, infections and patient experience. Every figure carries the period CMS published it for.
How hospitals are rated
CMS gives an overall rating from 1 to 5. The scale has no zero — a hospital without a rating is not a hospital with a bad rating. The grey bar below is that group.
A null overall rating means CMS did not rate this hospital — most often because too few cases were reported for a reliable score. It does not mean zero stars: the rating scale is 1 to 5 and has no zero. "Not rated" is not a judgement about quality.
2,245 of 5,419 hospitals (41.4%) have no overall rating. The usual reason is that too few cases were reported for CMS to calculate one reliably — often small rural hospitals, specialty hospitals, and facilities that do not treat the full set of measured conditions.
A missing measure is likewise not a poor result. CMS withholds a measure when the case count is too low, so a hospital with more blanks is not automatically worse.
Hospitals by state
How many hospitals CMS lists in each state. Click any state to see its hospitals.
How to read these numbers
Not rated is not zero stars
Missing means not reported
No prices here
Source: CMS Provider Data Catalog. Data updated 2026-07-22.
Common questions
- Where does this data come from?
- From the CMS Provider Data Catalog, which publishes the same measures used on Medicare’s Care Compare. Hospitals report to CMS, and CMS publishes the results. Every figure here is shown with the period it covers.
- Why does a hospital show “Not rated” instead of a star rating?
- Because CMS did not publish an overall rating for it — most often because too few cases were reported to produce a reliable score. The rating scale runs from 1 to 5 and has no zero. “Not rated” is not a judgement about quality, and we never display it as zero stars.
- Many measures are missing for smaller hospitals. Why?
- CMS suppresses measures when the number of cases is too small for the result to be statistically reliable. A blank means “not reported”, which is different from a poor result. A hospital with a blank is not necessarily worse than one with a number.
- What does “Compared to the National Average” mean?
- It is CMS’s own label for whether a hospital’s result was better, no different, or worse than the national average for that measure. It is published by CMS, not derived by us.