No they don't, but there are communal fridges in the kitchen and you can get a plastic tote with your room number on it to store your perishables in.
Some do for the patients that have longer stays.
The is also a locked medicine room if that is what you need to kept cold. Food and drink is not allowed out of the dinning room in order to keep the rest of the house clean.
Not that I have ever been they have a community kitchen that you can put your things in.
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