Best known for his advocacy of cannabis legalization, he has also published research in the academic and lay press on a range of other topics, including archeology, numismatics, the history of animation and early American football.
He is the Director of Continuing Education at the Penn Medicine Princeton Health and a clinical associate professor at Rutgers Robert Wood Johnson Medical School.
[8][9][10] He was principal author of the organization's “Declaration of Principles,”[11] which was signed by number of nationally prominent physicians, including Joycelyn Elders, Andrew Weil, Chris Beyrer, David Lewis, and Lester Grinspoon.
[16][17] In archeology, Nathan published an analysis of a proto-cuneiform tablet dating to the Jemdet Nasr period of Mesopotamia (circa 3100-3000 BCE), which included the discovery of a previously unknown numerical sign.
[18] In numismatics, Nathan proposed that the first coins minted in the Western Hemisphere feature a Hebrew letter aleph (א), suggesting direct evidence for a Jewish presence or influence in the New World as early as 1536.
[24] In 1990, Nathan received Princeton's Charles M. Cannon Memorial Prize for his senior thesis entitled Web Repair in Several Species of Orb Weaving Spiders.