Advanced diagnostics, board-certified clinicians, and targeted care plans to help you feel better and stay well.
Gut & Digestive Health
IBS, IBD, acid reflux, SIBO, leaky gut, constipation, diarrhea, food intolerances, bloating, gas
Functional medicine that helps you feel like your best self
Insurance accepted
Board-certified clinicians
Advanced lab testing
Virtual & in-person care
HSA/FSA eligible
Finally, a doctor that asks why — not just what
Proactive care from clinicians who are trained to uncover the root cause of complex conditions. Resolve your symptoms and start feeling like the best version of yourself again.
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of Parsley members improve or eliminate their symptoms within their first year
Your Complete Care experience
- Join the Parsley community
50,000+ members chose Parsley for clear answers and trusted clinicians.
- Feel seen and understood
Longer visits and a dedicated 5-person care team help you feel fully supported.
- Dive deeper with advanced tests
Build a baseline with whole-body lab tests for insights across key systems.
- Get a personalized care plan
Your custom care plan covers nutrition, exercise, supplements, stress, and more.
- Have a care team in your corner
Your provider, coach, and care team stay connected every step of the way.
★★★★★
"I've tried every method, doctor, and diet. Nothing has compared to the incredible care at Parsley that has made a massive difference in my healing after 10+ years of struggling."
Sam P.
IN-NETWORK CARE
Functional medicine — now accessible through insurance
Parsley now accepts insurance nationwide for our Complete Care program, with coverage for eligible medical costs including provider visits, diagnostics, and prescriptions.
Clinical rigor and root-cause depth, without compromise
Parsley providers are board-certified in conventional medicine and specially trained in functional medicine, delivering the highest quality of care possible.
Board-certified from top institutions
Practiced in conventional medicine
Advanced training in functional medicine
Evolve protocols with emerging science
Prescribe medications as appropriate
Progress tracking via clinically validated Parsley Symptom Index (PSI)
Dr. Robin Berzin, MD
Founder & CEO of Parsley Health
Clinical rigor and root-cause depth, without compromise
Parsley providers are board-certified in conventional medicine and specially trained in functional medicine, delivering the highest quality of care possible.
Board-certified from top institutions
Practiced in conventional medicine
Advanced training in functional medicine
Evolve protocols with emerging science
Prescribe medications as appropriate
Progress tracking via clinically validated Parsley Symptom Index (PSI)
Dr. Robin Berzin, MD
Founder & CEO of Parsley Health
Clinical rigor and root-cause depth, without compromise
Parsley providers are board-certified in conventional medicine and specially trained in functional medicine, delivering the highest quality of care possible.
Board-certified from top institutions
Practiced in conventional medicine
Advanced training in functional medicine
Evolve protocols with emerging science
Prescribe medications as appropriate
Progress tracking via clinically validated Parsley Symptom Index (PSI)
Dr. Robin Berzin, MD
Founder & CEO of Parsley Health
Symptoms and conditions we treat at the root
Hormone Health & Balance
Fatigue, weight changes, PMS, acne, irregular cycles, hair loss, insulin resistances, PMOS/PCOS
Autoimmune & Inflammation
Crohn’s disease, Hashimoto’s, lupus, psoriasis, rheumatoid arthritis, ulcerative colitis, joint pain
Unexplained Symptoms
Allergic reactions, anxiety, bloating, brain fog, fatigue, headaches, insomnia, joint pain, low mood, skin rashes
Mental & Emotional Health
Agitation, anxiety, brain fog, changes in appetite or weight, difficulty concentrating, fatigue, feeling hopeless, insomnia, irritability, loss of interest in activities, low mood
Heart Health
High cholesterol, hypertension, family history of heart disease, elevated inflammation markers, cardiovascular risk assessment
Metabolic Health
Weight gain or resistance, insulin resistance, prediabetes, type 2 diabetes, metabolic syndrome, GLP-1 support, unexplained fatigue
Longevity & Healthspan
Blood sugar imbalance, bone density, disease prevention, heart health, memory changes, muscle loss, sleep issues
Perimenopause & Menopause
Hot flashes, low libido, memory issues, mood swings, night sweats, sleep disturbances, weight changes, vaginal dryness
Fertility, Pregnancy, & Postpartum
Anemia, gestational diabetes, irregular periods, PMOS/PCOS, PMS, postpartum recovery
Detox & Environmental Exposure
Mold exposure, chemical sensitivity, mercury and heavy metals poisoning, chronic fatigue, headaches
Symptoms and conditions we treat at the root
Gut & Digestive Health
IBS, IBD, acid reflux, SIBO, leaky gut, constipation, diarrhea, food intolerances, bloating, gas
Hormone Health & Balance
Fatigue, weight changes, PMS, acne, irregular cycles, hair loss, insulin resistances, PMOS/PCOS
Autoimmune & Inflammation
Crohn’s disease, Hashimoto’s, lupus, psoriasis, rheumatoid arthritis, ulcerative colitis, joint pain
Unexplained Symptoms
Allergic reactions, anxiety, bloating, brain fog, fatigue, headaches, insomnia, joint pain, low mood, skin rashes
Mental & Emotional Health
Agitation, anxiety, brain fog, changes in appetite or weight, difficulty concentrating, fatigue, feeling hopeless, insomnia, irritability, loss of interest in activities, low mood
Heart Health
High cholesterol, hypertension, family history of heart disease, elevated inflammation markers, cardiovascular risk assessment
Metabolic Health
Weight gain or resistance, insulin resistance, prediabetes, type 2 diabetes, metabolic syndrome, GLP-1 support, unexplained fatigue
Longevity & Healthspan
Blood sugar imbalance, bone density, disease prevention, heart health, memory changes, muscle loss, sleep issues
Perimenopause & Menopause
Hot flashes, low libido, memory issues, mood swings, night sweats, sleep disturbances, weight changes, vaginal dryness
Fertility, Pregnancy, & Postpartum
Anemia, gestational diabetes, irregular periods, PMOS/PCOS, PMS, postpartum recovery
Detox & Environmental Exposure
Mold exposure, chemical sensitivity, mercury and heavy metals poisoning, chronic fatigue, headaches
Gut Health
Hormone Health
Autoimmune & Inflammation
Mystery Symptoms
Acne
Weight Changes
IBS
PMOS/PCOS
Heart Health
Autoimmunity
Perimenopause
SIBO
Leaky Gut
Chronic Fatigue
PMS
Insulin Resistance
Irregular Cycles
Crohn's Disease
Hashimoto’s
Joint Pain
Bloating
Lupus
Allergic Reactions
Anxiety
Skin Rashes
Psoriasis
Rheumatoid Arthritis
Brain Fog
Insomnia
High Cholesterol
Hypertension
Inflammation
Cardiovascular Disease Risk
GLP-1 Support
Type 2 Diabetes
Metabolic Syndrome
Disease Prevention
Muscle Loss
Cognitive Function
Low Libido
Memory Loss
Vaginal Issues
Anemia
Postpartum Recovery
Mold Exposure
Heavy Metal Poisoning
Headaches
WHAT WE TREAT
Results you can measure.
Progress you can feel.
We look at all your systems at once — not just the symptoms in front of us. Our board-certified clinicians combine conventional medicine, functional medicine, and longevity care into one integrated model.
We uncover patterns across your hormones, metabolism, gut, and immune health to address what's actually driving symptoms at the root. Then we build and guide you through a plan to feel your best.
WHERE TO START
Experience the Parsley difference
ONGOING CARE
Complete Care
- Verify insurance & join online
- Share your health history
- Meet your clinician
- Get advanced labs
- Start your care plan
- Receive ongoing support
Starting at $150/month
Insurance accepted, HSA/FSA eligible
12-month membership commitment
Join now
Our flagship functional medicine program gives you a dedicated care team that guides you through a personalized care plan to treat the root cause of your symptoms and help you finally feel like yourself again.
LAB INSIGHTS
Clinical Lab Review
Meet once a year with a board-certified functional medicine clinician who will review your lab results in context of your life. Get clear answers and actionable guidance.
$250-$550/yearSelf-pay only
HSA/FSA eligible
$250 credit can be applied to Complete Care membership
Book your visit
ONGOING CARE
Complete Care
Our flagship functional medicine program gives you a dedicated care team that guides you through a personalized care plan to treat the root cause of your symptoms and help you finally feel like yourself again.
- Verify insurance & join online
- Share your health history
- Meet your clinician
- Get advanced labs
- Start your care plan
- Receive ongoing support
Starting at $150/month
Insurance accepted, HSA/FSA eligible
12-month membership commitment
Join now
LAB INSIGHTS
Clinical Lab Review
Meet once a year with a board-certified functional medicine clinician who will review your lab results in context of your life. Get clear answers and actionable guidance.
- Get advanced labs or BYO
- Clinical review of labs
- Actionable insight
$250-$550/yearSelf-pay only
HSA/FSA eligible
$250 credit can be applied to Complete Care membership
Book your visit
CLINICAL LAB REVIEW
Clinical interpretation you can’t get from a chatbot
Most lab results come back "normal" — yet still leave you with questions. Clinical Lab Review is the best way to experience functional medicine: one visit, real answers, a plan you can act on.
Your $250 lab review fee applies toward Complete Care membership if you decide to continue your care with Parsley.
REAL RESULTS
Hear from our community
Melissa
"I started getting answers through extensive testing."
Ashley
"Wow I might actually be able to fix this problem that I've dealt with my whole life."
Kanchan
"The whole practice is unique, revolutionary, more of what we need in health care versus just sick care."
Bianca
"They don't just put a band-aid on a symptom."
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of U.S. adults live with at least one chronic condition
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of Americans experience daily GI distress
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years to get a correct diagnosis for many common conditions
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of U.S. adults live with at least one chronic condition
01234567890123456789%
of Americans experience daily GI distress
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years to get a correct diagnosis for many common conditions
Why root-cause healthcare matters
Get more out of medicine than you ever thought possible
Parsley is designed to help you understand why you feel the way you do and how to improve your health over time.
Frequently Asked Questions
The traditional healthcare system is built to treat acute symptoms, like illnesses, injuries, and emergencies. Parsley practices functional medicine, which is built to understand what’s going on at the root of the symptom. We’re concerned with helping you feel better in the present and build the foundation for sustained health over time.
We combine advanced lab testing with longer visits and ongoing support to uncover the underlying drivers of complex conditions and multi-system symptoms. Then, using evidence-based protocols, your provider creates a custom care plan that is designed to resolve symptoms, optimize your health, and extend your health span. Your dedicated care team considers the full picture of your health and how all 9 body systems interact to impact how you feel.
It’s a more complete, comprehensive, and connected approach that results in real progress you can measure and feel in your day-to-day life.
Learn more about root-cause medicine
Ready for a different kind of care?
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