Complex sentence: Nussbaum has been a member of a number of philanthropic boards of trustees, including Brandeis University and the Jewish Theological Seminary, and is presently a member of the board of The Mount Sinai Medical Center in New York.
Split into simpler sentences: Nussbaum has been a member of a number of philanthropic boards of trustees, including Brandeis University and the Jewish Theological Seminary. He is presently a member of the board of The Mount Sinai Medical Center in New York.