Under the Tang dynasty, I-hakase was at Senior Eighth Rank, Upper Grade, Hari-hakase was at Junior Eighth Rank, Lower Grade, Anma-hakase was at Junior Ninth Rank, Lower Grade, and Jugon-hakase was at Junior Ninth Rank, Lower Grade, while in Japan, they were placed at Senior Seventh Rank, Upper Grade, Junior Seventh Rank, Lower Grade, Senior Eighth Rank, Upper Grade, and Junior Seventh Rank, Upper Grade, respectively.
医博士が正八品上から正七位上、針博士が従八品下から従七位下、按摩博士が従九品下から正八位上、呪禁博士が従九品下から従七位上と引き上げられている。