Peter Grinspoon, M.D. is a primary care physician and cannabis specialist at Massachusetts General Hospital and an Instructor in Medicine at Harvard Medical School. He is a certified Health and Wellness Coach as well as a board member of the advocacy group Doctors for Cannabis Regulation. He spent two years as an Associate Director of the Massachusetts Physician Health Service, treating and monitoring physicians with addiction. He is the author of the memoir Free Refills: A Doctor Confronts His Addiction (Hachette, 2016), which was optioned for television production by MarVista Entertainment. He was the expert witness in the successful citizens’ 2019 lawsuit against the Massachusetts “Vape Ban” and a special consultant on addiction issues to Jagged Little Pill’’s pre-Broadway run when it was at the American Repertory Theater. He was named by Boston Resilient, a Harvard Medical School-based tribute to addiction-recovery leaders, a “Hero in Recovery.”

Dr. Grinspoon is a widely recognized expert on cannabis science and drug policy. He has been on NPR’s All Things Considered as well as national television shows including NBC Nightly News, C-SPAN’s Washington Journal, Fox and Friends and Fox News. He is quoted frequently in the national press, including such venues as People, New York Magazine (The Cut), the Washington Post, USA Today, the British Medical Journal, the Wall Street Journal, the Chicago Tribune, and the Boston Globe. His writing has been published in The Nation, the Los Angeles Times and Narrative Inquiry in Bioethics.

He is a Contributing Editor to Harvard Health Publications, where several of his blogs on medical marijuana and CBD have received more than 200,000 hits each. His Harvard Health writings have reached millions of readers, have been widely referenced in the national media and have been cited in congressional testimony. He is a TedX speaker. According to Wikipedia, Dr. Grinspoon is “an authority on virtually all aspects of cannabis, including recreational and medical usages, as well as political issues and social history”.