What Medicare spent on an average patient at this hospital compared with the national average, expressed as a ratio. 1.00 is exactly average; 0.94 is 6% less.
Why this matters to you
This measures cost to Medicare, not your bill. It will not tell you what you will pay, which depends on your insurance and the prices your plan negotiated. And lower is not automatically better — it can reflect genuine efficiency, or under-treatment. Treat it as context rather than as a quality score.
Official source
The authoritative definition and current rules are published here:
Rules and figures change. Where this page and the official source disagree, the official source is correct — and we would like to know, so please tell us.