Hospitals are classified into four types depending on the source of income received. list the four main types. me ?

There are more than 4 types of hospitals, for example:

- general hospital
- psychiatric hospital
- trauma center
- geriatric (seniors') hospital
- children's hospital
- rehabilitation hospital

Just pick any 4 you like :)

The four main types are: general, rehabilitation, geriatric, psychiatric.

How do we if it is a video and they know your face.