Lifestyle Medicine Pioneer & Clinical Professor of Medicine at UCSF; Founder of Preventive Medicine Research Institute; Author of "Dr. Dean Ornish's Program for Reversing Heart Disease"

Sausalito, CA, USA
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Dr. Dean Ornish Biography

Dr. Dean Ornish is recognized for his contributions to lifestyle medicine, a field he has advanced through scientific research and clinical practice. Ornish is the founder and president of the nonprofit Preventive Medicine Research Institute and serves as clinical professor of medicine at the University of California, San Francisco. He completed medical training in internal medicine at Baylor College of Medicine, Harvard Medical School, and Massachusetts General Hospital. Ornish’s career centers on demonstrating the body’s capacity for self-healing under optimal conditions.

Ornish has led research showing that lifestyle changes can reverse the progression of common chronic diseases and influence cellular aging. He directed the first randomized controlled trial indicating that comprehensive lifestyle modifications may halt or reverse early-stage prostate cancer. His studies have also shown that such changes can affect gene expression, activating genes that prevent disease and deactivating those that promote cancer and heart disease. In collaboration with Dr. Elizabeth Blackburn, Ornish’s research demonstrated increased telomerase activity, which is associated with telomere lengthening and cellular aging.

Ornish’s work extends to cognitive health. Research conducted at the Preventive Medicine Research Institute found that intensive lifestyle interventions, including a whole-food, plant-based diet, can improve cognition and halt the progression of Alzheimer’s disease. Using the Clinical Global Impression of Change, the study reported that 42 percent of patients showed significant cognitive improvement, and 71 percent experienced stabilization or improvement in cognition after 20 weeks. This trial, published in a peer-reviewed Alzheimer’s journal, expanded the scope of Ornish’s research in preventive medicine.

Ornish is the author of six national bestselling books, including "Dr. Dean Ornish's Program for Reversing Heart Disease," "Eat More, Weigh Less," "Love & Survival," "The Spectrum," and "UnDo It!" His research has appeared in medical journals such as Journal of the American Medical Association, The Lancet, and The New England Journal of Medicine. Ornish’s work has been featured in major media, including cover stories in Newsweek, Time, and U.S. News & World Report. He has been recognized by Life magazine and Forbes magazine for his influence in medicine and education.

Ornish has received appointments to the White House Commission on the Complementary and Alternative Medicine Policy and the White House Advisory Group on Prevention, Health Promotion, and Integrative and Public Health. His honors include the University of California, Berkeley National Public Health Hero Award, the Jan J. Kellermann Memorial Award from the International Academy of Cardiology, a presidential citation from the American Psychological Association, and the inaugural Lifetime Achievement Award from the American College of Lifestyle Medicine. Ornish’s program has been rated number one for heart health by U.S. News & World Report and is covered by Medicare when offered virtually at home, reflecting the evidence-based impact of his work in preventive medicine, nutrition, and chronic disease reversal.

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Speaker profile last updated by AAE Talent Team on 10/27/2026.

Dr. Dean Ornish Videos

Dr. Dean Ornish - Aspen Ideas Health

Dr. Dean Ornish - Aspen Ideas Health

Blue Zones and Lifestyle Medicine: The Secrets to Longevity Unlocked panel

The Dr. Dean Ornish Program for Reversing Heart Disease

The Dr. Dean Ornish Program for Reversing Heart Disease

Find out about the benefits of the Dr. Dean Ornish Program for Reversing Heart Disease, available at the Chambers Center for Well Being, part of...

Dr. Dean Ornish: Your genes are not your fate

Dr. Dean Ornish: Your genes are not your fate

Dr. Dean Ornish shares new research that shows how adopting healthy lifestyle habits can affect a person at a genetic level. For instance, he says,...

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Dr. Dean Ornish is a keynote speaker and industry expert who speaks on a wide range of topics. The estimated speaking fee range to book Dr. Dean Ornish for your event is available upon request. Dr. Dean Ornish generally travels from Sausalito, CA, USA and can be booked for (private) corporate events, personal appearances, keynote speeches, or other performances. Similar motivational celebrity speakers are Bob Harper, Dan Buettner, David Agus, Dr. Michael Roizen and Dr. Joel Selanikio. Contact All American Speakers for ratings, reviews, videos and information on scheduling Dr. Dean Ornish for an upcoming live or virtual event.

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