About Dr. Peter Grinspoon

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 the author of the recent book, Seeing Through the Smoke: A Cannabis Specialist Untangles the Truth About Marijuana. He is a certified Health and Wellness Coach as well as a board member of the advocacy group Doctors for Cannabis Regulation and has been providing medical cannabis care for patients for two decades.

Dr. Grinspoon is a widely recognized expert on cannabis science and drug policy. He regularly appears as an expert on national television and radio programs, including NPR’s All Things Considered, NBC Nightly News, C-SPAN’s Washington Journal, Fox and Friends and Fox News. He is quoted frequently in the national media, in such venues as People, the New York Times, New York Magazine, the Washington Post, USA Today, the Wall Street Journal, the Chicago Tribune, and the Boston Globe. He is a TEDX speaker.

Grinspoon’s Harvard Health articles have reached tens of millions of readers, have been widely referenced in the national media, and have been cited in congressional testimony. His writing has been published in The Nation, STAT, YES! Magazine, the Los Angeles Timesand Narrative Inquiry in Bioethics. He is the author of the groundbreaking memoir Free Refills: A Doctor Confronts His Addiction, 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 at the American Repertory Theater.