Medical practitioners who were educated in the field of medicine or practiced medicine in Anatolia during the reign of Sultan Alaaddin Keykubad I from 1220 to 1237, are introduced in this study. The aim of this study is to contribute to bringing into light the medical history of the Seljukian period, a field not sufficiently studied today. Medical practitioners who served the Sultan Alaaddin Keykubad I were specially studied; and the following physicians were noted in the study: Sadr Faraid al-Din, Mohammed Cacermi, Badr al-Din Ibn Harir, lzz al-Din Ibn Hubel el-Mavsili, Takiy el-Din Res'ani, Safiy al-Din Devl Nasrani, Surgeon Vasil, Abu Salim al-Nasrani al-Yakubi al-Malati, Abu'l Farac al-Nasrani, Physician Hasnum, Physician Gabreil, Muvaffak al-Din Abd al-Latif b. Yusuf al-Bagdadi, Physician Shermon, Physician Ahron, Abu Bakr.