Legal entity

MAMSI LIFE AND HEALTH INSURANCE COMPANY

le:002332·legal entity·owned by UnitedHealth Group, Inc.

Holds directly

Through subsidiaries

Subsidiaries

Held directly, ever

Marketplace issuers

Identifiers

Namespace	Value	Valid
`cms_org_name`	MAMSI LIFE AND HEALTH INSURANCE COMPANY	2018-01-01 to 2021-12-31
`ein`	521803283	2013-01-01 to today
`naic`	60321	2013-01-01 to today

Owned or controlled by

Owner	Relation	When	Basis	Grade
UnitedHealth Group, Inc.	controlled by	at least since 2018-01-01, no end found (last seen 2021-12-31)	reported_ultimate_parent	B

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 (3)

Instrument	Kind	Since	Grade
MAMSI Life and Health Insurance Company hios:17498	Marketplace issuer	start 2019-01-01	A
MAMSI Life and Health Insurance Company hios:65635	Marketplace issuer	start 2013-01-01	A
MAMSI Life and Health Insurance Company hios:78971	Marketplace issuer	start 2013-01-01	A

Ask about it

resolve_entity(text="MAMSI LIFE AND HEALTH INSURANCE COMPANY")
describe_entity(entity_id="le:002332", on="2026-10-01")          # owners on a date, holdings, events
describe_entity(entity_id="le:002332", 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_002332.md · every page in one file: /llms-full.txt