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 Exams
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
In the anime, Iyashi along with Mitate, Mogusa, Kusushi, and a few other medical-nin were deployed from the hospital to save Asuma Sarutobi, Kurenai Yūhi, and the others after their encounter with Mizuki. They were able to give them first aid on the stop and then later relocated them to the hospital to recover.