Wikipedia
Bakhtshooa Gondishapoori (also spelled Bukhtishu and Bukht-Yishu in literature) were Persian or Assyrian Nestorian Christian physicians from the 7th, 8th, and 9th centuries, spanning 6 generations and 250 years. The Middle Persian- Syriac name which can be found as early as at the beginning of the 5th century refers to the eponymous ancestor of this "Syro-Persian Nestorian family". Some of the members of the family served as the personal physicians of Caliphs. Jurjis son of Bukht-Yishu was awarded 10,000 dinars by al-Mansur after attending to his malady in 765CE. It is even said that one of the members of this family was received as physician to Imam Sajjad (the 4th Shia Imam) during his illness in the events of Karbala.
Like most physicians in the early Abbasid courts, they came from the Academy of Gondishapur in Persia (in modern-day southwestern Iran). They were well versed in the Greek and Hindi sciences, including those of Plato, Aristotle, Pythagoras, and Galen, which they aided in translating while working in Gondishapur.
In the course of their integration into the changing society after the Islamic invasion of Persia, the family acquired Arabic while preserving Persian as oral language for about 200 years.
The family was originally from Ahvaz, near Gondeshapur, however they eventually moved to the city of Baghdad and later on to Nsibin in Northern Syria, which was part of the Persian Empire in the Sassanid era. Yahya al-Barmaki, the vizier and mentor to Harun al-Rashid, provided patronage to the Hospital and Academy of Gondeshapur and helped assure the promotion and growth of astronomy, medicine and philosophy, not only in Persia but also in the Abbasid Empire in general.