noun
General term for a medical doctor. In polite speech, often used as お医者さん.
風邪をひいたので、医者に行った。
I caught a cold, so I went to the doctor.
お医者さんに診てもらったほうがいいよ。
You should see a doctor.
Compound of 医 (medicine) and 者 (person). The reading いしゃ is a regular on'yomi combination.