To join a health insurance plan.

Pension actuary who meets the standards of and is enrolled by the federal agency known as the Joint Board for the Enrollment of Actuaries .

Eligible individuals under a member’s family coverage who have applied and been accepted for membership in a health insurance plan (i.e., spouse and children of the insured). Under some insurance policies, parents, other family members, and domestic partners may be insured as dependents.

Individuals with the same employer or members of an association who are enrolled together in an insurance health plan. Also called contract group .

1. Person eligible for service as either a subscriber or a dependent of an insurance plan. 2. Individual or employer who becomes a member or subscribes to a health insurance plan or program. Also called beneficiary, enrolled patient, insured, member, policyholder, policy owner , or subscriber .

Toll-free telephone lines, usually staffed by the State or enrollment broker, that beneficiaries may call when they encounter a problem with their managed care organization. The people who staff hotlines are knowledgeable about program policies and may plan an “intake and triage” role or may assist in resolving the problem.

1. Total number of members or subscribers in a managed care plan at a given time. 2. Conversion of an eligible group into managed care plan membership. Some group plans have conditions of the minimum size or minimum percentage of a group that must enroll before insurance coverage is available. See also open enrollment period . 3. Process by which an individual becomes a subscriber for coverage in a health plan. 4. Process by which a Medicaid-eligible person becomes a member of a managed care plan. Enrollment data refer to the managed care plan’s information on Medicaid-eligible individuals who are plan members. The managed care plan gets its enrollment data from the Medicaid program’s eligibility system. 5. Information confirming that an individual is enrolled in a health insurance plan.

Geographical area in which subscribers must reside to be eligible for enrollment in a managed care plan.

1. Signed document by an employee that indicates his or her desire in becoming a member of a group insurance plan. 2. In contributory insurance plans, enrollment cards authorize an employer to deduct the employee’s contributions from his or her wages.