(Κρατερός), a Greek physician, who is mentioned in Cicero's Letters (ad Att. 12.13, 14) as attending the daughter of Atticus, Attica (called also Caecilia or Pompoma), B. C. 45. He is mentioned also by Horace (Sat. 2.3. 161), Persius (Sat. 3.65), and Galen (De Compos. Medicam. sec. Locos, 7.5, vol. xiii. p. 96, De Antid. 2.8. vol. x. p. 147); and he may perhaps be the same person who is said by Porphyry (De Abstin. ab Animal. 1.17, p. 61, ed. Cantab.) to have cured one of his slaves of a very remarkable disease.