Every Medicare-enrolled hospital in the US + every registered owner entity or individual — 147k ownership records from CMS provider-enrollment filings (42 CFR §455.104). Per row: hospital Medicare enrollment ID + name, owner type (Organization / Individual), role code (e.g. 5%+ direct/indirect ownership / operational-managerial control / managing employee), association date, owner identity (org name, DBA, individual name + title), full owner address, percentage ownership, entity classification flags (Corporation / LLC / Holding Company / Private Equity Company / REIT / For-Profit / Non-Profit / Management Services Company / etc), CREATED FOR ACQUISITION flag (M&A indicator). Captures every private-equity-acquired community hospital and every REIT-financed hospital real-estate transaction. Refreshed monthly. Powers /hospital-owner/{enrollment_id} canonical Hospital JSON-LD pages with full ownership-graph table.
Every record in this dataset can be traced back to its primary source at https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospital-all-owners. Source-specific terms apply. US federal employee-authored works are generally public domain under 17 USC 105; non-federal and third-party material retains source terms. Free or keyless access does not alter source terms. AI Analytics-authored metadata and normalization are CC0 only where expressly stated.