Legal entity

MASSACHUSETTS GENERAL PHYSICIANS DEMO PROJECT

le:000465·legal entity·top of its tree

Holds directly

Through subsidiaries

Subsidiaries

Held directly, ever

Identifiers

Namespace	Value	Valid
`cms_org_name`	MASSACHUSETTS GENERAL PHYSICIANS DEMO PROJECT	2010-01-01 to 2016-04-30

Ask about it

resolve_entity(text="MASSACHUSETTS GENERAL PHYSICIANS DEMO PROJECT")
describe_entity(entity_id="le:000465", on="2026-10-01")          # owners on a date, holdings, events
describe_entity(entity_id="le:000465", 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_000465.md · every page in one file: /llms-full.txt