expression, godan verb (-bu)
call a doctor
Used when summoning a doctor, typically to one's home or to see a patient. The phrase is a fixed expression.
熱が下がらないので、医者を呼んだ。
Since the fever wouldn't go down, I called a doctor.
Fixed phrase composed of 医者 (doctor) + を (object marker) + 呼ぶ (to call).