Legal entity

SECURITY HEALTH PLAN OF WISCONSIN, INC.

le:000704·legal entity·owned by Sanford Health

Holds directly

Through subsidiaries

Subsidiaries

Held directly, ever

Medicare contracts

Marketplace issuers

Identifiers

Namespace	Value	Valid
`cms_org_name`	SECURITY HEALTH PLAN OF WISCONSIN, INC	2006-08-01 to 2013-07-31
`cms_org_name`	SECURITY HEALTH PLAN OF WISCONSIN, INC.	2013-08-01 to today
`ein`	391572880	2013-01-01 to today
`naic`	96881	2013-01-01 to today

Owned or controlled by

Owner	Relation	When	Basis	Grade
Marshfield Clinic.	controlled by	at least since 2006-08-01, to 2014-09-30	reported_ultimate_parent	B
Marshfield Clinic Health System	controlled by	start 2014-10-01, to 2024-12-31	reported_ultimate_parent	B
Sanford Health	controlled by	start 2025-01-01, still true	reported_ultimate_parent	A

Grade A: published by the authority that creates the fact, or two independent sources agree. B: one official source. C: entity-supplied or press. Candidate and refuted facts are never served.

Holds (2)

Instrument	Kind	Since	Grade
H5211 contract:H5211	Medicare contract	start 2006-08-01	A
Security Health Plan of Wisconsin, Inc. hios:38166	Marketplace issuer	start 2013-01-01	A

Ask about it

resolve_entity(text="SECURITY HEALTH PLAN OF WISCONSIN, INC.")
describe_entity(entity_id="le:000704", on="2026-10-01")          # owners on a date, holdings, events
describe_entity(entity_id="le:000704", scope="group")            # everything under its top parent

Datasets that carry this company's name as a string (enrollment by parent, Stars by contract, MLR filings) join through these IDs; how_to_join names the key.

This page as markdown: /docs-md/companies/le_000704.md · every page in one file: /llms-full.txt