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We are healthcare, not sickcare.
Protocol is a first-of-its-kind concierge primary care that delivers personalized, compassionate, and proactive healthcare designed to extend healthspan. Our team of Stanford scientists, world renowned doctors, and longevity experts are here to guide you with the best and most current tools on your path to live healthier, longer.
The Protocol
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.
"Protocol is primary care for the health and performance obsessed. "
Locations
Boston
151 Merrimac St #300
Boston, MA
02114
Dr. Leslie Fang
Gallagher Chair of Clinical Excellence
A renowned clinician and teacher, Dr. Fang is Harvard trained and a leading teacher at Harvard Medical School. He has been repeatedly honored among the Best Doctors of America. Full Bio
Dr. Kerri Masutto
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. Full Bio
The Protocol Movement
Join for monthly podcasts, articles, and the latest science on longevity.
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.
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
