About Me

Carl Sagan was a frequent guest in Dr. Grinspoon’s family home. Here he is teaching Peter to read.

Dr. Peter Grinspoon

Peter Grinspoon, M.D. is a primary care physician and educator at Massachusetts General Hospital and an Instructor in Medicine at Harvard Medical School. He is a certified health and wellness coach. He is currently serving as a board member of the advocacy group Doctors For Cannabis Regulation, which works towards legalizing cannabis with an eye toward social justice issues.

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.”

He has treated patients with, and counseled people on, cannabis for several decades. In the cannabis industry, he has served as an expert witness, as a consultant, and as a medical and scientific advisor.

His latest book, “Seeing Through the Smoke: A Cannabis Specialist Untangles the Truth About Marijuana” will be out in April, 2023 (Prometheus)

Dr. Grinspoon is a Contributing Editor to Harvard Health Publications, where his popular blogs are read by millions. His blog on CBD has more than four million page views.

In recovery from opiate addiction, he has been a national leader on the issue of physician health and has served as an Associate Director of the Massachusetts Physician Health Service, helping physicians with addiction and mental health issues. 

He is the author of the memoir Free Refills: A Doctor Confronts His Addiction published by Hachette Book Group, which was optioned by MarVista Entertainment (the option has since reverted back).

He graduated with an M.A. in Philosophy with honors from Swarthmore College. He then spent five years as a Campaign Director for the environmental group Greenpeace before entering medical school at Boston University School of Medicine, where he graduated with honors. He completed his residency in the year 2000 at Harvard’s Brigham and Woman’s Hospital and has been employed at Harvard-affiliated hospitals ever since.

He has appeared on national television including NBC, C-SPAN and Fox and Friends, Good Morning America, MSNBC and The Daily Show, discussing issues ranging from cannabis to the opioid crisis; he has been appeared in the national press such as on NPR: All Things Considered and in People magazine, The Washington Post, The New York Times, USA Today, The Boston Globe, and New York Magazine. His writing has been published in The Nation, The Los Angeles Times, The Narrative Inquiry In Bioethics, and The Psychiatric Times.

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Peter Grinspoon M.D.
  • The Definitive Guide to what do psilocybin mushrooms look like
    ...psilocybin or LSD, will involve getting a fraction of a regular dose,” claims Dr Peter Grinspoon, instructor in medication at Harvard Clinical Faculty, “a dose that’s much lower than 1 would get when they wished to hallucinate or ‘journey’ on these...
  • Weed For Inexperienced persons and everyone Else
    ...until the process is complete. In some ways, Delta-8 sounds too good to be true. Dr. Peter Grinspoon, an instructor in medicine at Harvard Medical School, estimates Delta-8 “has a portion but not all of the psychoactivity as Delta-9,” which is the...
  • Can CBD oil help manage pain?
    ...Medicine, where she …View all posts by Jennifer Fisher, MMSc, PA-CPeter Grinspoon, MDDr. Peter Grinspoon is a primary care physician, educator, and cannabis specialist at Massachusetts General Hospital; an instructor at Harvard Medical School;...
  • The Rise of CBD Gummies: A Comprehensive Guide to Health Benefits & Market Trends
    ...a great promise on various conditions such as epilepsy and neuropathy pain.Dr. Peter Grinspoon, an assistant professor at Harvard Medical School, acknowledges that more research is needed to fully understand the potential benefits of CBD Gummies...
  • Revive Cbd Gummies: The Potential Shark Tank Success Story
    As the research on the effects of CBD increased, it attracted the attention of experts in various fields. For example, Dr. Peter Grinspoon, the primary medical doctor of Massachusetts General Hospital, is a medical cannabis in chronic pain...
  • Exploring the Benefits and Possible Drawbacks of KANA CBD Gummies
    "And added that it can help to manage symptoms related to depression.Dr. Peter Grinspoon's opinion on the safety of Kana CBD GummiesDr. Peter Grinspoon, a doctor of Harvard Medical School, emphasizes the importance of purchasing high-quality...
  • Blue Vibe Cbd Gummies: A Comprehensive Review
    The CBD showed the potential to reduce anxiety and improve sleep quality, but to confirm this effectHe added a lot of research.Dr. Peter Grinspoon, the first medical doctor and medical instructor at Harvard Medical School, said, "CBD can provide...

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