AB, University of California at Los Angeles, 1972; Doctor of Philosophy, University of California at Los Angeles, 1979; Master of Science, University of Wisconsin, 1974.
Postdoctoral fellow, University of California, Berkeley, 1979-1982; visiting assistant professor, University of California, Berkeley, 1984; assistant professor, U. Rhode Island, Kingston, 1982-1988; associate professor microbiology, U. Rhode Island, Kingston, 1988.
Board directors University Rhode Island Island Hillel Foundation, 1987-1993. Member American Association for the Advancement of Science, American Society Microbiology.
Married Sari Shapiro Nelson, July 1972 (divorced October 1975). Married Sara May Pressman, September 2, 1978. Children: Alissa Dorit, Rachel Illana.