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PPOâs allow you to see any doctor or facility in their network without obtaining a referral. 1  Additionally, out-of-network benefits allow you to see providers not in the network, but at a higher cost to you. This is important if you frequently travel outside of the provider area.
Provider-Sponsored Organization (PSO) Law and Legal Definition. A provider-sponsored organization (PSO) is a managed care contracting and delivery organization consisting of a group of doctors, hospitals, and other health care providers who accept full risk for beneficiaries' lives. Therefore, PSO provides its services in return for a fixed payment per month for each medicare beneficiary assigned to it.