A six-character code CMS assigns to every Medicare-certified hospital. It identifies the facility in every federal dataset.
Why this matters to you
This is the most reliable way to confirm you are looking at the right hospital. Names change after mergers and several hospitals in one state can share a name, but the CCN does not move. We show it on every hospital page so you can look the same facility up on Care Compare and compare like with like.
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.
Important:
hospiguide.org is an independent informational resource. It is not affiliated
with, endorsed by, or connected to the Centers for Medicare & Medicaid Services
(CMS), the U.S. Department of Health and Human Services, or Medicare.
This site does not provide medical advice and should not be used to decide
whether to seek or delay care — talk to a clinician about your situation.
Quality measures come from CMS public datasets, released August 13, 2026, and reflect
care delivered during earlier reporting periods, so they may not describe a
hospital as it operates today.
Always verify details at
Medicare.gov Care Compare
or by calling 1-800-MEDICARE (1-800-633-4227).