Preventive Medicine Research Institute

What Preventive Medicine Research Institute does

Preventive Medicine Research Institute (PMRI) is a 501(c)(3) non-profit research institute founded in 1984 by Dean Ornish, M.D., headquartered in Sausalito, California. The institute investigates how intensive lifestyle changes can prevent, treat, and reverse the progression of common chronic diseases, with peer-reviewed randomized controlled trial evidence across heart disease, early-stage prostate cancer, diabetes, depression, Alzheimer's disease, and cellular aging. Its core offering is the Ornish Lifestyle Medicine Program, a 9-week structured intervention built on four pillars: plant-based nutrition, moderate exercise, stress management techniques, and psychosocial support. The program is delivered online via live synchronous classes and functions as a Medicare-covered Intensive Cardiac Rehabilitation program, with additional reimbursement from Blue Shield of California and Aetna.

PMRI's underlying technology and research base derive from over 45 years of clinical investigation, including landmark studies demonstrating that lifestyle changes can beneficially modify over 500 genes in three months (in partnership with J. Craig Venter) and may increase telomerase and lengthen telomeres (in partnership with Nobel Laureate Elizabeth Blackburn, published in The Lancet). The most recent published research is a randomized controlled trial showing significant cognitive and functional improvement in patients with mild cognitive impairment or early-stage Alzheimer's disease. Academic collaborations with Harvard Medical School and UCSF underpin the research pipeline. Reported clinical outcomes include 99% of heart disease participants stopping or reversing disease, 400% improvement in blood flow to the heart, 73% of depressed patients becoming non-depressed at 12 weeks, and 42% improved cognition in Alzheimer's patients.

The institute operates as a public charity under three revenue streams: Medicare and commercial insurance reimbursement per patient completing the program, tax-deductible philanthropic donations, and research grants. Patient access is mediated through healthcare provider referrals, with the institute employing 11-50 staff and no disclosed parent organization, funding rounds, or equity investors. The combination of Medicare reimbursement, commercial payer coverage, and a virtual delivery model provides a scalable distribution mechanism, while the institute's clinical evidence base functions as the primary barrier to competitive entry.

Name

Preventive Medicine Research Institute

Legal name

Preventive Medicine Research Institute

Website

https://pmri.org

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Preventive Medicine Research Institute is a 501(c)(3) non-profit founded in 1984 by Dean Ornish, M.D., that researches and delivers an intensive lifestyle medicine program to prevent and reverse chronic diseases including heart disease, Alzheimer's, diabetes, and prostate cancer, reimbursed by Medicare and commercial insurers.

Ownership category

akta.pro rank

Product category

Lifestyle Medicine and Preventive Healthcare Services

NAICS

Voluntary Health Organizations (813212)

SIC

Services-Health Services (8000), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Chronic Disease Management Pathways (e.g., diabetes, CHF, COPD) (HLACAGAG)

akta.pro secondary industries

Non-Communicable Disease Prevention & Chronic Disease Programs (BPAIAJAI), Preventive Cardiology & Lipidology (HLAKABAF)

Keywords

• Lifestyle medicine programs
• Intensive cardiac rehabilitation
• Chronic disease reversal
• Plant-based nutrition therapy
• Preventive healthcare research

Headquarters

HQ city

Sausalito

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Medicare Reimbursement: Dr. Ornish's lifestyle medicine program for reversing coronary heart disease was the first to attain Medicare coverage as an Intensive Cardiac Rehabilitation program. This provides reimbursement for the 9-week program delivered to Medicare beneficiaries.
2. Commercial Insurance Reimbursement: Program is reimbursed by Blue Shield of California, Aetna, and many other commercial payers. Patients achieve substantial lifestyle changes, improved clinical outcomes, greater cost savings, and enhanced adherence.
3. Donations and Philanthropy: As a 501(c)(3) non-profit public institute, PMRI accepts tax-deductible contributions from donors to support research and educational endeavors.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

The Preventive Medicine Research Institute (PMRI) delivers the Ornish Lifestyle Medicine Program, a 9-week intensive intervention built on four pillars—plant-based nutrition, exercise, stress management, and social support—designed to prevent and reverse chronic diseases such as heart disease, early-stage prostate cancer, Alzheimer's disease, diabetes, depression, and obesity. The program is delivered online via live synchronous classes and is reimbursed by Medicare (as an Intensive Cardiac Rehabilitation program), Blue Shield of California, Aetna, and other commercial payers. PMRI also conducts peer-reviewed randomized clinical trials and research collaborations with Harvard Medical School, UCSF, and Nobel Laureate Elizabeth Blackburn.

Product overview

The Preventive Medicine Research Institute (PMRI) offers a unified lifestyle medicine program centered on the Ornish Lifestyle Medicine Program, which integrates four evidence-based pillars: Eat Well (plant-based nutrition), Move More (exercise), Stress Less (meditation and relaxation), and Love More (social support). The core offering is a 9-week Intensive Cardiac Rehabilitation Program available online with live synchronous classes. PMRI also provides specialized interventions for Alzheimer's disease, diabetes, prostate cancer, and other chronic conditions, all grounded in over 45 years of peer-reviewed randomized controlled trials. The program is reimbursable by Medicare, Blue Shield of California, Aetna, and other major insurers.

Differentiator

Problem solved

Functional benefit

Products and services

• Ornish Lifestyle Medicine Program A comprehensive 9-week intensive lifestyle medicine program for reversing chronic diseases including heart disease, Alzheimer's, diabetes, and prostate cancer, delivered through live synchronous online classes. The program is grounded in four pillars: plant-based nutrition, exercise, stress management, and social support.
• Intensive Cardiac Rehabilitation Program A Medicare-covered cardiac rehabilitation program that uses lifestyle changes to reverse coronary heart disease, featuring a 9-week online format with live synchronous classes enabling participants to attend from home.
• Alzheimer's Disease Lifestyle Intervention An intensive lifestyle intervention program (without drugs) demonstrating significant improvement in cognition and function for patients with mild cognitive impairment or early dementia due to Alzheimer's disease, based on a randomized controlled clinical trial published in Alzheimer's Research and Therapy.
• Prostate Cancer Lifestyle Intervention A lifestyle medicine program showing that intensive lifestyle changes may slow, stop, or reverse the progression of early-stage prostate cancer, based on the first randomized trial demonstrating these effects.

Quantifiable outcome

• 99% of participants stopped or reversed heart disease; 2.5x fewer cardiac events; 91% reduction in chest pain
• +9 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core.

• Blue Shield of CaliforniacoreOthers · 7 December 2023Blue Shield of California provides reimbursement for the Ornish lifestyle medicine program as Intensive Cardiac Rehabilitation. Press release announced digital expansion enabling members to treat heart disease from home with live synchronous classes.
• Harvard Medical SchoolcoreStrategic or Co-development PartnerPMRI collaborates with Harvard Medical School on pioneering lifestyle medicine research studies scientifically proven in peer-reviewed randomized trials.
• University of California, San FranciscocoreStrategic or Co-development PartnerPMRI collaborates with UCSF on research studies demonstrating how lifestyle medicine can reverse, treat, and prevent chronic diseases.
• Elizabeth BlackburncoreStrategic or Co-development PartnerNobel Laureate Elizabeth Blackburn collaborated with PMRI on research revealing that lifestyle changes can potentially lengthen telomeres, which regulate cellular aging.
• J. Craig VentercoreStrategic or Co-development PartnerPMRI partnered with J. Craig Venter (first to sequence the human genome) on research showing that lifestyle changes can impact genes, activating health-promoting genes and deactivating illness-predisposing genes.
• MedicarecoreOthersDr. Ornish's lifestyle medicine program was the first to attain Medicare coverage as an Intensive Cardiac Rehabilitation program, enabling eligible beneficiaries to access the program with insurance coverage.
• AetnacoreOthersAetna reimburses the Ornish intensive cardiac rehabilitation program as an approved lifestyle medicine intervention for eligible members.

Scale indicators14 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Omada Health: Omada Health runs an evidence-based digital behavior-change program targeting diabetes prevention, hypertension, and other cardiometabolic conditions. It overlaps directly with PMRI in using digital coaching, lifestyle modification, and payer reimbursement to manage chronic disease.
• McDougall Program: The McDougall Program offers a 10-day residential lifestyle intervention emphasizing plant-based nutrition to reverse chronic disease. It serves an overlapping patient population and philosophy as PMRI, though with a shorter residential format and no Medicare ICR coverage.
• Virta Health: Virta Health delivers a digitally delivered, clinician-supervised lifestyle/nutrition intervention shown to reverse type 2 diabetes. It directly competes with PMRI in the chronic-disease reversal-via-lifestyle category, targets similar payer relationships, and pursues Medicare Advantage and commercial reimbursement for cardiometabolic outcomes.
• Pritikin Longevity Center: Pritikin operates residential and virtual intensive lifestyle programs for heart disease reversal built on diet, exercise, and behavior change. It is one of the closest historical analogs to the Ornish program, addressing the same patient population with similar plant-based and exercise-based protocols.

Broad incumbents

• Cleveland Clinic Lifestyle Medicine: Cleveland Clinic has built one of the largest hospital-based lifestyle medicine programs in the U.S., applying similar lifestyle interventions across chronic disease. It overlaps in clinical philosophy and patient population but operates as part of a much broader healthcare system rather than as a specialized lifestyle institute.

Others

• American College of Lifestyle Medicine: ACLM is the leading professional society promoting lifestyle medicine across the U.S. healthcare system. It does not deliver patient programs but trains clinicians, sets standards, and convenes the same community that PMRI engages as referral partners.
• Ornish Lifestyle Medicine (Sharecare): Sharecare holds an exclusive license to deliver the Ornish Lifestyle Medicine program through hospitals, physician practices, and online. It is the principal commercial vehicle scaling PMRI's intervention model, making it an enabling partner/adjacent entity rather than a direct competitor.

Emerging players

• True Health Initiative: True Health Initiative is a nonprofit coalition of health professionals advocating for lifestyle as the primary intervention against chronic disease. It overlaps with PMRI in mission and evangelism of evidence-based lifestyle medicine but focuses on education and advocacy rather than program delivery.
• Wellcoaches Health & Wellness Coaching: Wellcoaches is a professional health and wellness coaching organization that trains and certifies coaches who deliver lifestyle interventions. It overlaps with PMRI as part of the lifestyle medicine ecosystem, particularly as PMRI scales its virtual delivery through trained coaches.
• Noom: Noom is a consumer-facing digital behavior-change platform with strong presence in weight management, prediabetes, and hypertension prevention. It overlaps with PMRI in using digital coaching for chronic-disease risk reduction, though with a more consumer/employer GTM and less clinical intensity.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/DeanOrnishMD
• YouTubeyoutube.com/user/DrDeanOrnish
• Facebookfacebook.com/pages/Dean-Ornish-MD/131659478210
• Instagraminstagram.com/deanornishmd
• LinkedInlinkedin.com/company/preventive-medicine-research-institute

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Preventive Medicine Research Institute