Rated 4.9 Excellent
Advanced diagnostics, customised health plans, and 24/7 access to experts, to feel your best—now and for years to come.
Protocol is a first-of-its-kind concierge primary care that delivers personalized, compassionate, and proactive healthcare designed to extend healthspan.
Protocol begins with a comprehensive assessment of your health using cutting-edge diagnostics.
Our advanced testing includes 100+ biomarkers from blood work, DEXA scans to measure body composition, and VO2 max tests to evaluate cardiovascular fitness.
These tests uncover hidden risks like insulin resistance, vitamin deficiencies, and early signs of chronic disease, providing a data-driven foundation for your health journey.
Based on your unique health data, our team of world-class doctors, scientists, and longevity experts creates a tailored “pro-scription” just for you.
This personalized plan includes precise recommendations for nutrition, exercise, supplements, and lifestyle changes designed to help you achieve your health goals—whether it’s improving energy, preventing disease, or extending your healthspan.
Your health is dynamic, and so is our approach.
Every 3 months, you’ll undergo re-testing to track progress and measure improvements in key biomarkers.
Your care team will adjust your health plan to ensure it remains aligned with your evolving needs, providing a proactive strategy to prevent disease and optimize performance.
With Protocol, you’re never alone. Our members enjoy unlimited access to their care team via call, text, or video for immediate support and guidance.
No waiting rooms, no delays—just personalised care when you need it most.
Protocol is designed to help you live longer, healthier, and stronger.
Our science-backed approach focuses on extending the number of healthy years in your life, not just treating sickness.
Through strategies to slow biological aging, improve cellular health, and enhance overall vitality, we help you prevent age-related decline and chronic disease.
Protocol is a first-of-its-kind concierge primary care that delivers personalized, compassionate, and proactive healthcare designed to extend healthspan.
Protocol begins with a comprehensive assessment of your health using cutting-edge diagnostics.
Our advanced testing includes 100+ biomarkers from blood work, DEXA scans to measure body composition, and VO2 max tests to evaluate cardiovascular fitness.
These tests uncover hidden risks like insulin resistance, vitamin deficiencies, and early signs of chronic disease, providing a data-driven foundation for your health journey.
Based on your unique health data, our team of world-class doctors, scientists, and longevity experts creates a tailored “pro-scription” just for you.
This personalized plan includes precise recommendations for nutrition, exercise, supplements, and lifestyle changes designed to help you achieve your health goals—whether it’s improving energy, preventing disease, or extending your healthspan.
Your health is dynamic, and so is our approach.
Every 3 months, you’ll undergo re-testing to track progress and measure improvements in key biomarkers.
Your care team will adjust your health plan to ensure it remains aligned with your evolving needs, providing a proactive strategy to prevent disease and optimize performance.
With Protocol, you’re never alone. Our members enjoy unlimited access to their care team via call, text, or video for immediate support and guidance.
No waiting rooms, no delays—just personalised care when you need it most.
Protocol is designed to help you live longer, healthier, and stronger.
Our science-backed approach focuses on extending the number of healthy years in your life, not just treating sickness.
Through strategies to slow biological aging, improve cellular health, and enhance overall vitality, we help you prevent age-related decline and chronic disease.
Rated 4.9 Excellent
Don’t just take our word for it—hear from people who’ve experienced Protocol.
“Protocol is the only practice I have heard of that addresses my healthspan goals – they are 100% philosophically aligned with what I’m looking for in a concierge practice.”
5.0
“Early in the program, but so far I’ve really enjoyed the engaging and productive conversations with Dr. Masutto and Dr. Fang. They clearly are going to help push me on my longevity journey!”
5.0
“Access to focused engaged thoughtful thorough doctors. To have both a functional doctor and an MGH “Medical” doctor is terrific. Support staff responsive and helpful.”
5.0
“Outstanding expertise and actionable recommendations”
5.0
of members report improved energy levels within 3 months.
see measurable improvements in key biomarkers (e.g., cholesterol, blood sugar) within 6 months.
reduce their biological age by an average of 5 years after 12 months.
of members report improved energy levels within 3 months.
see measurable improvements in key biomarkers (e.g., cholesterol, blood sugar) within 6 months.
reduce their biological age by an average of 5 years after 12 months.
From your first consultation to lifelong support, here’s exactly what to expect.
While conventional medicine waits for problems to emerge, Protocol prevents them. Our proactive, data-driven approach uncovers health risks years before symptoms appear—giving you the power to optimize your healthspan, not just treat disease.
Our team of renowned doctors, scientists, and longevity specialists is here to guide you on your journey to better health.
Gallagher Chair of Clinical Excellence
A renowned clinician and teacher, Dr. Fang is Harvard trained and a leading teacher at Harvard Medical School.
He is the Gallagher Chair of Clinical Excellence at Massachusetts General Hospital and has been repeatedly honored among the Best Doctors of America.
Leslie S.T. Fang received his PhD degree in Biophysics from the University of Illinois, Champaign-Urbana.
He did his medical training at Harvard Medical School and his residency training at the Massachusetts General Hospital where he served as Chief Medical Resident.
He did his fellowship training in Nephrology at the Massachusetts General Hospital and is board certified in Internal Medicine and Nephrology.
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.
HealthSpan Specialist + Co Founder of Protocol
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.
Gallagher Chair of Clinical Excellence
A renowned clinician and teacher, Dr. Fang is Harvard trained and a leading teacher at Harvard Medical School.
He is the Gallagher Chair of Clinical Excellence at Massachusetts General Hospital and has been repeatedly honored among the Best Doctors of America.
Leslie S.T. Fang received his PhD degree in Biophysics from the University of Illinois, Champaign-Urbana.
He did his medical training at Harvard Medical School and his residency training at the Massachusetts General Hospital where he served as Chief Medical Resident.
He did his fellowship training in Nephrology at the Massachusetts General Hospital and is board certified in Internal Medicine and Nephrology.
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.
HealthSpan Specialist + Co Founder of Protocol
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.
Protocol begins with a comprehensive assessment of your health using cutting-edge diagnostics.
Our advanced testing includes 100+ biomarkers from blood work, DEXA scans to measure body composition, and VO2 max tests to evaluate cardiovascular fitness.
These tests uncover hidden risks like insulin resistance, vitamin deficiencies, and early signs of chronic disease, providing a data-driven foundation for your health journey.
Protocol is for anyone who wants to take control of their health, especially busy professionals aged 35-70 who value personalized, preventive care. Whether you’re looking to improve energy, prevent age-related decline, or extend your healthspan, Protocol is designed for you.
Our baseline testing includes comprehensive blood work (100+ biomarkers), DEXA scans (body composition), VO2 max tests (cardiovascular fitness), and a physician consultation. These tests provide a complete picture of your health and form the foundation of your personalized plan.
You’ll have an initial consultation, followed by quarterly check-ins to review your progress and adjust your plan. In between, you’ll have 24/7 access to your care team via call, text, or video for any questions or concerns.
For full details on pricing and inclusions, please get in touch with our team.
While Protocol is not typically covered by insurance, we provide detailed invoices that you can submit to your insurance provider or HSA/FSA for potential reimbursement. Our team can also help you navigate this process.
Yes, you can cancel your membership at any time. We believe in providing flexible, stress-free healthcare that works for you.
Many members report feeling more energetic and seeing improvements in key biomarkers within the first 3 months. However, the timeline varies depending on your starting point and health goals. Our quarterly check-ins ensure you stay on track and continue making progress.
No problem! We offer virtual consultations and can coordinate local testing at partner facilities. Our care team is available 24/7 to support you, no matter where you are.
While Protocol focuses on preventive care and health optimization, our team can provide guidance and support for managing specific conditions. However, we recommend consulting with your primary care physician for condition-specific treatment.
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