[1] After returning from his studies in the United States, Barbash was appointed deputy director of the Sheba Medical Center at Tel HaShomer in 1986.

As a result, Barbash’s character was portrayed in the film "Rabin: The Last Day" by director Amos Gitai, played by Tomer Russo.

[1] On June 25, 2015, Barbash retired from managing Ichilov and, together with Professors Shlomo Berliner, Jacob Nefrostek, and Anat Gefter-Gvili, founded the company "Consilium".

In July 2020, he was appointed a member of the professional team of Professor Ronni Gamzu, the coordinator for the fight against the COVID-19 pandemic in Israel.

His son, Professor Israel Barbash, is a senior cardiologist at Sheba Medical Center in the invasive cardiology unit and heads the catheterization service.