Health insurance plan’s complex formula that measures and tracks the insured’s overall health levels such as how often they are in emergency departments, how often they receive preventive care, and whether they take needed medications.

Total managed care plan membership each month for a given time period (e.g., 200 members serviced each month for 6 months equals 1200 member months). Operating figures for managed care companies may be expressed in terms of member months (e.g., per member per month [PMPM] or per member per year [PMPY]).

Payment section of the insurance carrier that acts as a patient advocate to resolve problems and take insurance claims appeals to a committee after all other processes have been used.

State of belonging to a managed care plan as a subscribing member and entitled to the benefits, right, privileges, and obligations. For family coverage, this may include enrollment of eligible dependents.

Formal contract with a health plan that consists of enrollment application, health statements, and certificate of coverage including any amendments. Also referred to as membership service agreement .

Prospective applicant’s enrollment form when applying to a health plan for health coverage. It must be signed and may serve as an agreement between the member and the health plan. Also see application form .

Insurance company’s electronic master file of information on insured individuals such as names, certificate numbers, and contract data.