"from or of" what's the difference in my case?

Hello All,

A pediatrician or GP or any other doctor I’d like to present to public can be presented in the following way:

Dr. Martin, an endocrinologist from / of State Hospital.

Which prepositions to use? Please, clarify.

In that case it should be “from”.

Is “State Hospital” the full proper name of the institution, or is it descriptive? If descriptive then you need an article or other word before it.

Dozy, in which cases I have to use “of”, meaining that doctors of a state hospital.

“doctors of a state hospital” is not impossible, but in any given context it is likely not to be the natural preposition.

“doctors at/from/in a state hospital” would be typical.

OK. Thanks. Got it. will learn by heart.