Parsley Health delivers evidence-based, whole-body functional medicine care, designed to understand why symptoms happen and support better health over time.
Healthcare that looks deeper
When symptoms persist, answers matter
Too many people live with ongoing symptoms despite normal lab results and standard care. Visits are short. Specialists are siloed. Care often focuses on managing symptoms instead of understanding what’s driving them.
Parsley Health was built to change that experience, by giving clinicians the time, tools, and structure to practice deeper, more personalized medicine.
We believe better outcomes come from asking better questions and empowering expert clinicians to understand a patient's full picture of health.
Our approach to delivering quality care
Board-certified clinicians
All Parsley clinicians are MDs, DOs, NPs, or PAs board-certified in conventional medicine with advanced training in functional medicine.
Functional medicine fellowship
Each clinician completes Parsley’s intensive fellowship, plus advanced coursework through the Institute for Functional Medicine.
Evidence-based protocols
Parsley maintains the only complete, current, and fully documented set of evidence-based functional medicine protocols.
Advanced lab & diagnostic testing
Our clinicians can order and interpret advanced lab testing and specialty tests for deeper, whole-body insights.
Parsley's clinical collective
Your care is supported by a wide team of expert clinicians who share case review and leverage the latest science to build protocols.
Measurable results & progress tracking
Our proprietary Parsley Symptom Index (PSI) is a clinically validated tool to track symptom severity and measure progress over time.
"We can't wait for the wheels to fall off the wagon to see a doctor. We know that the body can heal. Now's the time to listen to the messages your body is sending you, and to ask for help."
Dr. Robin Berzin, MDFounder & CEO
A physician-led vision for our care
Parsley Health was founded by Dr. Robin Berzin, MD, who trained at Columbia University and Mount Sinai and saw how fragmented care leaves too many people without real answers.
With Parsley, she built a physician-led medical system that treats the whole person—combining whole-body medicine with clinical rigor, standardized protocols, outcomes tracking, and technology-enabled care.
Today, Dr. Berzin continues to lead Parsley Health as CEO, advancing an innovative model of functional medicine that can reach and impact more people every day.
Whole body care for every stage of your life
Parsley Health delivers evidence-based, whole-body medical care led by board-certified clinicians, with multiple ways to begin and a system designed to support long-term health. Care is delivered virtually nationwide, with in-person care available in New York City and Los Angeles.
We offer:
Comprehensive medical care for people who need ongoing support
Advanced lab testing and clinician review
Deep diagnostics to uncover patterns across hormones, metabolism, gut health, inflammation, and more
A standardized clinical methodology shared across the practice
Progress tracking over time to guide decisions and adjust care
Changing what medicine can do
Our Mission
To transform the health of everyone, everywhere through the world's best possible medicine.
Our Vision
Better physical, mental and spiritual health unlocks an individual’s potential for greatness and results in a safer, happier, more abundant and conscious world.
Our Values
- Treat the root cause
- Commit to excellence
- Count every good thing
Progress you can see and feel
We use our proprietary, clinically-validated Parsley Symptom Index (PSI) to track progress in our care. Parsley members complete the PSI before their first visit and consistently over time establish a baseline of symptom severity and track clinical progress. Nearly 9 out of 10 members report symptom improvement within their first year of care.
member outcomes
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improved or eliminated symptoms in the first year
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improved mental wellbeing
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members served nationwide
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improved or eliminated symptoms in the first year
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improved mental wellbeing
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members served nationwide
member outcomes
Get more out of medicine than you ever thought possible
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