Barnabas [SEP] position held
among Hippolytus' list of Seventy Disciples, one (#13) became the bishop of Milan, the other (#25) the bishop of Heraclea. Most likely one of these two is the biblical Barnabas; the first one is more likely, because the numbering by Hippolytus seems to indicate a level of significance. Clement of Alexandria ("Stromata", ii, 20) also makes Barnabas one of the Seventy Disciples that are mentioned in the Gospel of Luke 10:1ff.
Other sources bring Barnabas to Rome and Alexandria
. After completing his fellowship he held a faculty position at Children’s National Medical Center. In 2007 he became the vice president of Medical Affairs at the Carilion Roanoke Memorial Hospital. Slonim served as the CMO of the Shady Grove Adventist Hospital in Rockville, Maryland before joining the New Jersey-based Barnabas Health as a CMO and executive vice president. At Barnabas, Slonim was responsible for overseeing patient care delivery, accountable care initiatives, and information technology.
In May 2014 he was named the CEO and president of Renown Health