A Preferred Provider Organization (also known as a PPO) is just a managed care system that provides members health advantages and medical protection based on a certain structure and network of medical professionals and facilities. PPOs can be paid by companies or insurance firms and support subsidize member medical costs. All doctors, hospitals, and health care providers involved in the network are selected from the preferred provider organization to provide health care coverage and medical assistance to its people. PPOs encourage members to make use of the medical practioners and hospitals with-in the PPO network but do allow members to go to out-of-network medical ser-vices providers. PPOs cover more of one's medical costs should you visit an in-network service. But, if a member visits a doctor or medical facility that's not within the PPO network, he/she isn't protected in the level the member will be if he/she visited an in-network service. Browse here at the link intangible to check up the meaning behind it.