He then joined the faculty in Buddhist Studies at Naropa University in Colorado, and after a year became Assistant Professor of Religion at Williams College in Massachusetts.
In 1984 he joined the faculty of the University of South Florida in Tampa, and a decade later was brought to FIU to start up a new Department of Religious Studies.
He has written books on Indian Jewish communities, and in 2002 convened an international seminar on this topic at Oxford University, bringing together scholars from North America, India, Europe and Israel.
The conference resulted in Indo-Judaic Studies in the 21st Century, a book that was the focus of an academic panel at the 2008 annual meeting of the American Academy of Religion.
Katz also serves as an adjunct professor of Hinduism at Hindu University of America in Orlando, as academic dean of Chaim Yakov Shlomo College of Jewish Studies, an Orthodox rabbinical school in Surfside, and at the Sivananda Yoga Ashram Bahamas.