Legal entity

BLUE CROSS AND BLUE SHIELD OF MASS. HMO BLUE, INC.

le:001788·legal entity·owned by Blue Cross and Blue Shield of Massachusetts, Inc.

Holds directly

Through subsidiaries

Subsidiaries

Held directly, ever

Identifiers

Namespace	Value	Valid
`cms_org_name`	BLUE CROSS AND BLUE SHIELD OF MASS. HMO BLUE, INC.	2008-01-01 to 2009-12-31

Owned or controlled by

Owner	Relation	When	Basis	Grade
Blue Cross and Blue Shield of Massachusetts, Inc.	controlled by	at least since 2008-01-01, no end found (last seen 2009-12-31)	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.

Ask about it

resolve_entity(text="BLUE CROSS AND BLUE SHIELD OF MASS. HMO BLUE, INC.")
describe_entity(entity_id="le:001788", on="2026-10-01")          # owners on a date, holdings, events
describe_entity(entity_id="le:001788", 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_001788.md · every page in one file: /llms-full.txt