The doctors' office (医務室,Imu-shitsu?) was a research room, and part of the wider island complex build by Los Iluminados.
The doctors' office would have been used by the Plaga development team. A whiteboard displaying formulae is in the room, as are roentgenographs of research subjects. To aid the researchers, the room also contains cabinets for file storage and there is a small library on the bottom level.
A Shotgun Shell can be found inside an open locker downstairs toward the Culture room. There is a typewriter and a green herb not far from door to the Culture room.
Enemies A-F spawn when the player first enters the room. Enemies G-L spawn after the Storage Room Card Key has been recovered.