"She is a French doctor from Paris."
Translation:هِيَّ دُكْتورة فَرَنْسِيّة مِن باريس.
If you want an original Arabic word, then it would be طبيب (derived from the word for Medicine طِب - Tib).
However, in modern times, the word طبيب has been used for general physicians. Doctor دكتور somehow points to a more professional in some specific field, beside using it a general use (in Egypt I think). Also, PhD people (those with PhD degrees in academia) are commonly called Doctor as well, for respect.