(Νικήτας), a physician, to whom is addressed one of the letters of Theophylactus, archbishop of Bulgaria (Ep. 55). He is there styled "Physician to the King," and must have lived in the eleventh century after Christ.
[W.A.G]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890