Private Health Care Systems      The PHCS Network is the largest proprietary PPO network in the country. With 400,000 providers and nearly 3,700 facilities in our Network, health plan members have access to a quality network of providers wherever they may be. As a proprietary network, we contract directly with every provider participating in our Network, allowing us to deliver seamless network services and reduced costs for customers and their health plan members. PHCS performs rigorous credentialing for providers in the Network to ensure that they meet our quality standards. We also boast a high network retention rate due to improved provider satisfaction, so members can be confident that once they select a participating physician, that doctor will remain available through their health plan.