Under the managed care plans, you have two choices in your hand- one is HMO and the other is PPO. The first one is called Health Maintenance Organizations while the latter one is known as Preferred Provider Organizations. If you go for the first one, you have to take treatment only from a list of physicians provided in the list.

In PPO, you will have the options of getting treatment from the list of doctors as well as from other who are not in the list. If you have to take treatment from a specialist who is not in the list, you will have to take permission from your health insurer.