Before you sign PPO contract, do homework.
D002140:California; D003284:Contract Services / Q000458:organization & administration*; D005376:Financial Management / Q000458:organization & administration*; D006264:Health Benefit Plans, Employee / Q000458:organization & administration*; D006761:Hospitals; D007348:Insurance, Health / Q000458:organization & administration*; D014600:Utilization Review