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Healthcare Organization Map

Two maps of US healthcare, joined. Who owns what: every health system, network, billing entity, facility and practitioner in one hierarchy, from NPI, EIN, CCN and PAC ID up to the ultimate owner. Where care happens: every site placed in its building and hospital campus, and every practitioner at the places they actually see patients. Every link carries a confidence.

Who owns what
Health systems
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Provider networks
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named networks and small groups
Billing entities
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Facilities
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Sites
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Practitioners
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Where care happens
Hospital campuses
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CMS 250-yard rule
Buildings
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Practitioner places
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Hospital affiliations
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New in the 29 October snapshot
Owner chains from Medicare's ownership files
Facility chains from PECOS owner records, and small groups of related practices that share an official or most of their clinicians (confidence low). Billing entities with a known parent: 4.7% → 11%.
Dialysis and surgery centers
ESRD facilities and ambulatory surgery centers are facilities now, each with the company that runs it.
Sites by kind
Imaging centers, labs, infusion, urgent care and sleep or cardiac testing, from their Medicare supplier type. Filter any search by kind.
Look up a list
Up to 1,000 NPIs, CCNs, EINs or PAC IDs in one call, each with what holds it and its owner at the top.
Shared PAC IDs, answered honestly
A PAC ID on several sites with no billing entity linked comes back with every candidate rather than one picked at random.
The VA and Military Health System
Federal systems AHRQ leaves out are health systems here, with their hospitals and clinics underneath.
Only
Search for an organization, or try one of the questions above.

Look up a list

New

Paste the identifiers from your own systems (NPIs, CCNs, EINs, PAC IDs), one per line. Each comes back with what holds it and its owner at the top; an identifier several organizations share comes back with all of them. The API takes 1,000 in a call (about 1.5 seconds); the lab, 100.

Results show here, in the order you pasted them.
high
Confirmed by a primary public record, or checked by hand. Treat as fact.
medium
Strong evidence from one source, not yet independently confirmed. Good for analysis and targeting.
low
Plausible but thin or conflicting evidence. A lead to check.

Use it in your own systems

A REST API for lookups (one call from any NPI, EIN, CCN or PAC ID to its ultimate owner, its building and its campus, or 1,000 of them at once) and bulk Parquet files for analysis, places included. Stable IDs, a confidence on every link, and refreshes measured in days.