Questions & Answers about Non è un medico.
Why does non come at the very beginning of the sentence?
Where is the word for "he" in this sentence?
Could this sentence also mean "She is not a doctor"?
Yes! Because the subject pronoun is left out, è can mean "he is", "she is", or "it is". You would rely on the context of the conversation to know exactly who is being talked about. Note that the word medico is often used for both male and female doctors, though you might also hear una dottoressa for a woman.