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

What a lookup can verify

Every hospital has a record, not every record runs deep

All 5,432 facilities in the CMS Hospital Compare extract carry a base record. The measure-family layers below, patient experience, infection rates, readmissions, mortality and the composite overall star, exist for a smaller share, so a compare or lookup returns more detail for some hospitals than others.

  • CMS Hospital Compare record on file 100% 5,432

    Name, address, ownership and CMS certification for every facility in the extract.

  • Patient experience (HCAHPS) survey data 88.2% 4,792

    National patient-survey results across communication, cleanliness and quiet domains.

  • Healthcare-associated infection rates 88.2% 4,792

    CDC NHSN infection measures compared to the national baseline.

  • Readmission measure family 78.7% 4,276

    30-day unplanned readmission rate rated better/same/worse than the national rate.

  • Mortality measure family 75.6% 4,105

    30-day mortality rate for tracked conditions rated better/same/worse than the national rate.

  • Overall CMS star rating 58.6% 3,182

    The composite 1-5 star score, calculated only when enough measure families report.

Share of the 5,432-hospital CMS Hospital Compare extract carrying each layer. Source: CMS Hospital Compare and CDC NHSN, current release.

The quality scale every compare session sits on

3,182 CMS-rated hospitals across the 1–5 star scale (national average 3.2)

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.

Source CMS Hospital Compare, overall hospital rating As of 2026-08-14

Interactive tools

Download the CMS hospital extracts cited on this page: plainhospital-hospital-ratings.csv and plainhospital-state-summary.csv (CMS public records · CC0).

Take this with you

These tools work from the same CMS record every hospital profile draws on.

  • Start with Compare: Put two hospitals side by side on CMS quality and safety measures - mortality, readmissions, patient experience and complications - to see which performs better, measure by measure. Open Compare
  • See the best-rated hospitals nationally before comparing two directly. Best-rated hospitals
  • Look up any hospital by name, city, or state. Browse hospitals

Tools draw on CMS Hospital Compare and FDA MAUDE device-safety data; results are reference information, not medical advice.

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.