Tamar Peretz (maiden name Jablonski), grew up in Gdansk, Poland and immigrated to Israel in 1957.
In 1980 she graduated from the Hebrew University School of Medicine and in 1986 completed her internship in oncology at Hadassah Ein Kerem Hospital.
From 1986 to 1994 she served as a senior physician in the Department of Oncology at Hadassah Ein Kerem Hospital.
[1] In 2005–2009 Peretz chaired the Committee for Clinical Studies at the Hebrew University School of Medicine, and from 2009 she has served as Deputy Dean of Teaching Affairs.
[2] Since 2019 Peretz has been researching and developing solutions for breast cancer that incorporate cannabis.