California Code, Health and Safety Code - HSC § 1366.2

(1) “Enrollee” means a person who is enrolled in a health care service plan and who is a recipient of services from the plan.

(2) “Full health care service plan” means a plan that meets the definition set forth in subdivision (f) of Section 1345, and that has a total enrolled membership exceeding 499,999 enrollees.

(3) “Hospital” means a general acute care hospital.

(4) “Major health care provider contract” means a contract between a full service plan and provider group or hospital covering more than 25,000 of that plan's enrollees. “Major health care provider contract” does not mean a provider contract between a specialized health care service plan and a provider group or hospital.

(5) “Provider group” means a medical group, independent practice association, or other similar group of providers with a total enrolled membership exceeding 99,999 enrollees.