Boston's first longevity and

and healthspan focused primary care

$8,500

Annual Membership Fee

  • Pro-science

    Undergo blood work, dexa scan, VO2 max, physician visit, and other extensive baseline testing.

  • Pro-scriptions

    Our team of scientists, doctors, and longevity experts will deliver personalized pro-scriptions.

  • Pro-active

    Re-test every quarter. Measure progress, tweak approach, and receive new pro-scriptions as needed.

  • Pro-patient

    Call or text our expert team 24/7. Extending healthspan is an everyday pursuit and we are on your team.

Questions + Answers

Your New Care Team

Dr. Leslie Fang

A renowned clinician and teacher, Dr. Fang is Harvard-trained and a leading teacher at Harvard Medical School. He is the Chair of Clinical Excellence at Boston’s Mass General Hospital and has been repeatedly honored among the Best Doctors of America.

A clinician and a teacher, he maintains an active international practice in Internal Medicine and Nephrology and is a leading teacher at Harvard Medical School.  He has received numerous awards for excellence in teaching from Harvard Medical School and Massachusetts General Hospital.

Dr. Kerri Masutto

Kerri started out her career in traditional primary care, exploring many different delivery models, including interdisciplinary teams at companies like Visa and Western Digital, at on-site wellness centers for Silicon Valley tech companies. She then ventured into functional medicine, health optimization, and obesity medicine startups where she led high growth expansion of care.

She led the clinical operations and medical teams at companies like Parsley Health and Tony Robbins Life Force. She spent almost a decade designing innovative wellness protocols and delivery systems and training dozens of doctors to deliver this kind of care to tens of thousands of patients across the country.

Join Protocol

Click the join now button to start. This will take you to our membership agreement for signature and payment. Our team will reach out to your shortly to initiate the onboarding process.

From Our Founder

Will we be the first generation to live forever? Hear our vision straight from our Founder, Jackson Stone.

What to expect when you apply

Concierge Care, LLC

Concierge Care, LLC (Dr. Leslie Fang’s practice) is a premier concierge primary care practice led by Harvard–trained physicians with longstanding academic affiliations and national recognition for clinical and teaching excellence. The practice emphasizes longitudinal, relationship-based care and serves a diverse patient population, including individuals with complex medical needs and those seeking highly personalized preventive care.

Physicians in the practice have received multiple awards for excellence in teaching and clinical service from major academic medical centers and maintain active roles in medical education. The practice integrates evidence-based internal medicine with a personalized approach that prioritizes continuity, proactive health management, and thoughtful care coordination.

Since my early days as a medical student, I’ve been obsessed with defining and creating a truly exceptional primary care experience. This is my life’s work.

Dr. Ajay Haryani trained at the world’s top institutions and bridges worlds that rarely meet. He is a Board-Certified Internal Medicine physician and Assistant Clinical Professor of Medicine at Mount Sinai, with an expert understanding of chronic disease, longevity, fitness, and nutrition.

Unlike most physicians who focus solely on illness, or wellness experts who lack medical training, he brings knowledge of how the body functions in both health and disease – where we thrive and where we falter. He develops personalized care plans that address the full spectrum of health needs, from cardiometabolic health and weight management to emotional health and complex chronic conditions. He is also a Certified Personal Trainer and avid cyclist.

Most recently, he worked with the founder of One Medical (Dr. Tom Lee) to build the cutting-edge primary care company Galileo, supervising doctors and clinical operations across the country. He currently advises leading digital health companies focused on primary care, nutrition and mental health.

Credentials

  • Residency Training: UCSF Medical Center (Ranked #1 Program)
  • Medical School: Northwestern University Feinberg School of Medicine
  • Business School: Northwestern University Kellogg School of Management
  • Undergraduate: Northwestern University