Dokkiri Doctor (どっきりドクター, Dokkiri Dokutā?), also known as Startling Doctor or Dr. Dokkiri, is a manga series by Hosono Fujihiko, serialized from 1981–1982 in Shōnen Sunday. It was later adapted into a 27-episode anime television series by Studio Pierrot, originally broadcast on Fuji TV from 1998–1999 and later translated and broadcast in Taiwan, Hong Kong, South-East Asia, South Asia, and other regions, by the Animax television network.

Source: Wikipedia