Someone with a Ph.D. is called a doctor.
Yes, someone with a PhD is typically referred to as a doctor.
Yes, it is appropriate to address someone with a PhD as "doctor" as they have earned a doctoral degree.
Yes, it is appropriate to address someone with a PhD as "doctor" as they have earned a doctoral degree which entitles them to use the title.
An individual Joe Smith with a PhD would be addressed as Dr Smith or Joe Smith, PhD but not Dr Joe Smith, PhD.
It's called getting your PhD.
Yes, someone with a PhD is typically addressed as "Doctor."
Yes, it is appropriate to address someone with a PhD as "Doctor."
Yes, someone with a PhD is typically referred to as a doctor.
A PhD student is typically referred to as a doctoral candidate.
Yes, someone with a PhD is typically addressed as "Doctor" as a courtesy title.
Yes, it is appropriate to refer to someone with a PhD as "Dr." as a sign of respect for their academic achievement.
Yes, it is appropriate to refer to someone with a PhD as "Doctor" as a sign of respect for their advanced academic achievement.