In all large Chinese cities, there are doctors who can speak English. Contact your consulate for current lists. Usually, you pay the treatment costs directly. By major complications, it is necessary to first contact your travel or overseas health insurance. Also make sure that the proof of payment (receipt) includes the name of the person treated, the name of the doctor, the date, and treatment costs.
If you are involved in a traffic accident, you should behave similar to the way you would at home. To make a claim for damages, it is necessary to write down the name, address, and insurance number of the other people involved in the accident. It is also important to get a copy of the police report, as well as find out the name and addresses of the witnesses and if necessary the address of the court of competent jurisdiction to obtain the file number of the damages claim. If you witness an accident in China, you will probably notice that no one actively gives first-aid. This is because if worst comes to worst, the accident victim could claim that the first-aid givers were responsible for the injuries, and thus, they would have to pay the hospital costs.
Important phone numbers:
Fire brigade: 119
Rescue service: 120