Bin Kizawa was appointed chief surgeon to the Kaisei Hospital when it was founded by Jozaburo Kikuchi at Tokyo (1894). Later when Kikuchi left Tokyo for Osaka, he founded the Kizawa Hospital at Kojima-chi, Tokyo and equipped it with departments for internal diseases, surgery and pediatrics (1902).
Bin Kizawa is described as gentle and sincere, he easily won a great reputation for himself.