Legal entity

University of Maryland Medical System Corporation

le:001220·legal entity·top of its tree

Holds directly

Through subsidiaries

Subsidiaries

Held directly, ever

Identifiers

Namespace	Value	Valid
`cms_org_name`	University of Maryland Medical System Corporation	2016-02-01 to 2021-03-31

Owns or controls (2)

Company	Relation	When	Grade
RIVERSIDE ADVANTAGE, INC.	controlled by	start 2016-02-01, no end found (last seen 2016-03-31)	B
UNIVERSITY OF MARYLAND HEALTH ADVANTAGE, INC.	controlled by	at least since 2016-04-01, no end found (last seen 2021-03-31)	B

Ask about it

resolve_entity(text="University of Maryland Medical System Corporation")
describe_entity(entity_id="le:001220", on="2026-10-01")          # owners on a date, holdings, events
describe_entity(entity_id="le:001220", 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_001220.md · every page in one file: /llms-full.txt