校医 is read as こうい (koui) and means school doctor.
こうい
koui
ぼうえいいかだいがっこう
National Defense Medical College
ぐんいがっこう
military medical college
とうほうしかいりょうせんもんがっこう
Toho Dental College
ちゅうおういりょうぎじゅつせんもんがっこう
Chuoh College of Medical Technology
こうせい
calibration
こうか
school song
こうふう
school tradition
じょい
female doctor
かいぎょうい
private clinician
い
doctor
めいい
noted doctor
こうしゃ
school building