Michael Kaabak graduated from the Faculty of Pediatrics of the second Moscow Medical Institute in 1989 year, residency in Pediatric Surgery at Moscow Children City Hospital No. 13 in 1989-1991 years. From September 1991 to March 2000, he worked as a surgeon in kidney transplant department of Republican Children's Clinical Hospital of Russian Ministry of health. In 1997, he defended his thesis "Kidney transplantation in children”. January-April, 1999: internship at the Hôpital Necker des Enfant Malades, Paris. Since March 2000 till November 2019, he was Chief of the kidney transplant department of Boris Petrovsky National Research Center of Surgery. In 2003, defended his doctoral thesis "Post-operative treatment of kidney graft reperfusion injury: new insights into pathogenesis of reperfusion trauma". In 2009 graduated as Professor of surgery in the field of Transplantology and Artificial organs. Since December 2019, he heads organ transplant division in the National medical research center for children’s health. For the first time in Russia performed the following successful transplants: kidney to the children of the first year of life, small intestine from deceased donor, and pancreas from deceased donor. Michael Kaabak focused investigational efforts on reperfusion injury, immunosuppression minimization, long-term graft function.