Legal entity

General Catalyst Group Management Holdings LP

le:000837·legal entity·top of its tree

Holds directly

Through subsidiaries

Subsidiaries

Held directly, ever

Marketplace issuers

Medicare contracts

Identifiers

Namespace	Value	Valid
`cms_org_name`	General Catalyst Group Management Holdings LP	2026-04-01 to today

Owns or controls (4)

Company	Relation	When	Grade
SUMMA INSURANCE COMPANY	controlled by	start 2025-10-01, no end found (last seen 2011-12-31)	B
SUMMACARE INC.	controlled by	start 2025-10-01, still true	A
Summa Health System	controlled by	start 2025-10-01, still true	B
Summa Insurance Company, Inc.	controlled by	at least since 2013-01-01, still true	B

Ask about it

resolve_entity(text="General Catalyst Group Management Holdings LP")
describe_entity(entity_id="le:000837", on="2026-10-01")          # owners on a date, holdings, events
describe_entity(entity_id="le:000837", 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_000837.md · every page in one file: /llms-full.txt