Interactive tools · CMS Hospital Compare
Hospital Tools & Calculators
Free, no-sign-up tools that let you work directly with federal CMS Hospital Compare quality and safety data - compare any two U.S. hospitals measure by measure.
- 4
- Interactive workflows
- 5,432
- Hospitals covered
- 3,182
- CMS-rated
- CMS / FDA
- Data source
Why these tools exist
A single CMS star hides the measure families behind it. Of 3,182 rated hospitals in a 5,432-facility catalog (national average 3.2), only 12% reach five stars, so side-by-side compare is how you see infections, readmissions, and experience when the headline matches.
- 5,432
- hospitals you can compare
- 3.2 / 5
- national average star rating
- 12%
- reach five stars
- 4
- workflows on this hub
The quality scale every compare session sits on
3,182 CMS-rated hospitals across the 1–5 star scale (national average 3.2)
- 1★ 199
1-star hospitals
199 hospitals
- 2★
2-star hospitals
662 hospitals
- 3★
3-star hospitals
987 hospitals
- 4★
4-star hospitals
950 hospitals
- 5★ 384
5-star hospitals
384 hospitals
What this shows Most hospitals cluster in the middle of the scale; only 12% reach five stars. Compare is useful precisely because the headline average hides that spread.
Interactive tools
Related data workflows
- What changed Scan hospitals whose CMS measures moved between release windows — rating upgrades, downgrades, and measure-family flips. Answers: Which hospitals got better or worse since the last CMS refresh? Open What changed →
- Device safety lookup Browse FDA MAUDE adverse-event density for devices and manufacturers tied to the hospital care stack. Answers: Which devices show elevated adverse-event reporting? Open Device safety lookup →
- National statistics board Live CMS aggregates — rated share, five-star concentration, and state spreads that frame every compare session. Answers: What does the national quality distribution look like right now? Open National statistics board →
How this data is sourced - all tools draw from CMS Hospital Compare and FDA device-safety data.
Download the CMS hospital extracts cited on this page: plainhospital-hospital-ratings.csv and plainhospital-state-summary.csv (CMS public records · CC0).
Every figure on PlainHospital is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.