Function Health
Check your health. Every year.
Twice-yearly Quest lab testing with clinician summaries, trend tracking, and optional Ezra MRI/CT screening
About
Function Health is a direct-to-consumer testing platform built around repeat measurement: a broad annual lab panel, a mid-year retest, app-based trend tracking, and clinician-written summaries that help members understand what changed. Blood draws happen at Quest Diagnostics, while MRI and CT screening run through Ezra, the imaging company Function acquired. The product is strongest as a high-depth testing and tracking layer that helps people bring better data into their own care.
Reviews
Editorial summary
Members most often value the clinician-written summary: it makes a large lab panel easier to understand and pairs findings with food, supplement, and lifestyle next steps. Quest booking usually reads as smooth. Support is the main friction point in reviews, especially when AI chat needs to escalate to a person. Renewal value tends to depend on how personalized the guidance feels after the first deep panel.
What people mention
Results Clarity
positive25 mentions
Clinician notes explain each biomarker in plain language and pair findings with specific food, supplement, and lifestyle next steps. A small minority find the recommendations skew generic or miss a requested marker.
Value For Money
positive15 mentions
$365 for 160+ markers lands as a strong deal against ordering the same panel elsewhere. The caveat: if insurance covers the labs you actually need, the comparison flips.
Communication
mixed11 mentions
Pre-test communication and proactive outreach on flagged results earn praise. Post-test, reaching a human is the friction point; AI chat handles basics well but escalations can stall, and the phone line routes to voicemail.
Platform Experience
mixed10 mentions
The app, dashboard, and AI protocol feature are the day-to-day interface and mostly work smoothly. Reports of the chat failing to send or the AI recommendations feeling boilerplate recur enough to note.
Scheduling
positive8 mentions
Booking at Quest is typically fast and flexible, and the lab visit runs as advertised. When the state/location can't be changed or a test sits in limbo after payment, resolution depends on support response times.
What to Know
Signature approach
Function is built around a twice-yearly cadence. The Annual Test creates the broad baseline, the Mid-Year Test checks what moved, and on-demand retesting can follow specific markers between cycles. Results land in the app as trend lines plus a clinician-written summary, so the work becomes pattern recognition over time instead of a single lab snapshot.
What sets them apart
- Quest-based collection. Function uses medical-grade Quest draws across 2,000+ sites, which gives the panel a more standard lab workflow than finger-prick kits or home phlebotomy.
- Labs plus imaging. The Ezra acquisition lets MRI and CT screening sit inside the same member ecosystem as blood testing.
- Deep advisory bench. Mark Hyman, MD, Andrew Huberman, PhD, and Daniel Sodickson, MD, PhD give the platform visible clinical, neuroscience, and imaging depth.
Before You Book
- Plan the care handoff. Bring flagged results and the written summary to your own clinician for diagnosis, prescriptions, or treatment decisions. - Check state access. Rhode Island, Hawaii, and Puerto Rico are excluded; New York and New Jersey add a state-regulation surcharge. - Budget the timeline. The draw is quick, but the full report can take several weeks once lab processing and clinician review are complete. - Confirm renewal terms. Function frames the current $365/yr price as a first-year membership rate.
Services
Comprehensive Lab Testing
10 offerings160+ biomarkers tested annually
Heart health (ApoB, Lp(a), LDL particles, hs-CRP)
Thyroid panel (TSH, T3, T4, TPO, TgAb)
Hormones (male and female panels)
Autoimmunity screening (ANA, Rheumatoid Factor)
Metabolic health markers
Environmental toxins (mercury, lead)
Nutrients and electrolytes
Liver and kidney function
Blood count and immune regulation
Add-On Lab Tests
10 offeringsGRAIL Cancer Test (50+ cancer types)
Extended Heart & Metabolic panel
Genetic Heart Risks
Extended Thyroid Health
Extended Autoimmunity
Celiac (Gluten Intolerance)
Chronic Inflammatory Response (Mold)
Extended Hormone Health
Alzheimer's risk (ApoE)
Pregnancy HCG
MRI & CT Scans (via Ezra)
5 offeringsMRI Scan (head, neck, abdomen, pelvis) - $899
MRI Scan with Spine - $1,499
MRI + Skeletal & Neurological Assessment - $3,999
Heart CT Scan (CAC score) - $349
Lungs CT Scan - $399
Digital Health Platform
6 offeringsClinician-reviewed results with written summary
Personalized food and supplement protocols
Trend tracking over time
Past results upload and consolidation
iOS and Android mobile app
PDF export for sharing with doctor
Pricing
Starting at
$365/yr
Annual membership with 160+ Quest lab tests across two testing windows
Typical annual investment
$365/yr - $5,000/yr
Membership range estimate before any optional add-ons.
What this range includesMembership tiers, testing cadence, and common add-on examples.
Base membership is $365/yr. Specialty panels, on-demand retests, and Ezra MRI/CT scans can move an engaged member into the low-thousands range.
In practiceAdd-ons, payment details, and coverage limits.
- Base membership: $365/yr, charged annually, covers the Annual Test, Mid-Year Test, Quest draw, app trends, and clinician-written summary. Function compares the same lab order at individual cash rates to $15,000+.
- Imaging is separate: Ezra scan pricing starts with Heart CT $349 and Lungs CT $399, then moves to MRI $899, MRI with Spine $1,499, and MRI with Skeletal & Neurological Assessment $3,999. - Plan for add-ons: specialty panels such as GRAIL multi-cancer, extended hormone, and mold-response carry member-only pricing after sign-in. Self-pay only; HSA/FSA eligible; NY and NJ add a state-regulation surcharge.
Annual Membership
$$365/yr
160+ biomarker lab tests twice per year (Annual Test 100+, Mid-Year Test 60+) at 2,000+ Quest Diagnostics locations, clinician-reviewed results with written summary, personalized food and supplement recommendations, trend tracking, mobile app
Who it’s for
Anyone who wants comprehensive preventive lab testing at consumer pricing without needing insurance
Add-On Scans (via Ezra)
$$$349
Heart CT Scan, Lungs CT Scan, MRI head/neck/abdomen/pelvis, MRI with spine, MRI + skeletal and neurological assessment. Members only.
Who it’s for
Members who want advanced imaging beyond blood work
Insurance: Self Pay · HSA/FSA: Eligible
Membership and scans are HSA/FSA eligible, with itemized receipts available for reimbursement. Plan rules still determine eligibility.
Frequently asked questions
How much does Function cost?
Membership is $365/yr, charged annually, and covers the Annual Test, Mid-Year Test, Quest draw, app tracking, and clinician-written summary. Specialty panels, retests, and MRI/CT imaging are separate member-only purchases.
Does Function replace my doctor?
Function gives you organized testing data and clinician-written interpretation to bring into care. Diagnosis, prescribing, and treatment decisions still happen with your own physician or care team.
Where do I actually get the blood drawn?
At a Quest Diagnostics location, with 2,000+ sites across the US. Function uses in-lab draws for sample quality instead of at-home kits.
Does Function accept insurance?
No. Function is self-pay only, with no deductibles, co-pays, or surprise bills. HSA and FSA funds are eligible, and an itemized receipt is provided for reimbursement filings.
How long does a lab visit take, and when do results arrive?
The draw itself runs about 15 minutes at Quest. Some markers return within days; the full panel typically completes in 3–4 weeks, and the clinician's written summary arrives 1–2 weeks after that.
Team
Daniel Sodickson, MD, PhD
Chief Medical Scientist bringing parallel MRI, AI reconstruction, and preventive imaging depth to Function
Function Health
Jonathan Swerdlin
Founder-CEO blending healthcare entrepreneurship, consumer scaling, and his own biomarker-tracking story
Function Health
Mark Hyman, MD, IFMCP
Functional medicine physician, author, and Function CMO shaping the platform's biomarker and nutrition lens
Function Health
Pranitha Patil
Co-founder and CBO bringing health-system strategy, consumer growth, and women's-health perspective to Function
Function Health
Diagnostics
Function Health Annual Membership
$Quest-based lab membership with two yearly panels, clinician summaries, app trends, and on-demand retesting
Function Health
Function Health MRI & CT Scans
$$Member-only Ezra MRI and CT screening with FDA-cleared image enhancement and radiologist-reviewed reports
Function Health
Details
Awards
5TIME
Fast Company
Fast Company
Inc.
Accreditations
2SOC 2 Type II
Rigorous third-party audit of security controls for protecting member health data.
HIPAA
Health data is encrypted, protected, and handled under strict privacy and security controls.
Directory listings are for informational purposes only. Inclusion does not constitute endorsement. Verify credentials and qualifications independently.