Which four designated medical institutions in Beijing are selected in the blueprint of Beijing Social Security Medical Manual?

Just look at Beijing's medical insurance policy. Medical insurance is a requirement for designated hospitals. First, you must go to the hospital designated in the social security book (you chose it yourself) for medical treatment. If special diseases need to be treated in other hospitals, a transfer certificate from a designated hospital is required. There are four hospitals in Beijing's blueprint: 1 level 1 (community hospital), two secondary (district-level) hospitals and 1 level 3 hospitals, but the blueprint of Beijing 14 level 3 hospitals is universal. You'd better look at the specific 14 companies online, including Beijing Medical University, Sheikh, Tongren, Jishuitan, 30 1, Chaoyang Hospital and Beijing Hospital of Traditional Chinese Medicine. ...

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.