Match the description to the appropriate organizational structure. Exclusive provider organizations (EPOs) Preferred provider organizations (PPO) Health maintenance organization (HMO) Point of service (POS) plans 1. The oldest type of managed care. Members must see their primary care provider first in order to see a specialist. 2. These providers agree to a relative value-based fee schedule or a discounted fee to see members. They do not have a gatekeeper like others, so a member does not need a referral to see a specialist. 3. These restrict members to a list of preferred or exclusive providers and if you select out of network, the cost is on the patient. You do not need a primary care provider. 4. A blend of other plans. They encourage but do not require that plan members use a primary care provider who will become the gatekeeper of services. Members will receive lower fees if they use a gatekeeper model. They may also see an out of network provider at any time but they will be charged a higher rate