Iyashi

is a medical-nin from Konohagakure's Medic Corps.

Appearance
He wears the standard high collared, full body uniform of the Konoha medical ninja. His uniform has also the Konoha Medic Corps-sign on the left side of his chest.

Abilities
As a medical-nin, Iyashi presumably has a high level of intellect, is well-versed in medical ninjutsu, and has excellent chakra control to perform medical procedures.

Chūnin Exam Arc
Following Sasuke Uchiha's match in the preliminary rounds of the Chūnin Exams, Iyashi tried to take him away to deal with his injuries, but Kakashi Hatake volunteered to do it instead.

Mizuki Strikes Back Arc
Iyashi along with Mitate, Mogusa and other from Konoha medic corps are going to save Asuma, Kurenai Yūhi and others. Then he held Naruto to not cross Tsunade's room.