看来你的是HMO的PPO,lol

Most Americans who have health insurance through their employer (and many who are self-insured) are enrolled in some type of a managed care plan - either an HMO or PPO. The most common types of managed care plans are health maintenance organizations (HMOs) and preferred provider organizations (PPOs). Less common are point-of-service (POS) plans that combine the features of an HMO and a PPO.

所有跟帖： 

• (POS) plans that combine the features of an HMO and a PPO. -gossypium- ♂ (0 bytes) () 07/19/2013 postreply 16:10:01

• it is called POS, not HMO 的PPO -野生动物摄影家- ♂ (0 bytes) () 07/19/2013 postreply 19:50:18