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VialCompareCalibrate vs Function Health
VIAL TRUST COMPARISON

Calibrate vs Function Health

Vial Take

Both Calibrate and Function Health land in the top quartile of their respective categories with clean federal compliance records and a shared blind spot around pharmacy disclosure. The most meaningful difference is physician visibility: Function Health confirms physician-supervised lab review, so you know a clinician is in the loop, while Calibrate discloses nothing about its physician or pharmacy partners, which matters more here given it's likely prescribing metabolic or GLP-1 medications. If verifying the care chain before you commit is a priority, Function Health gives you a clearer picture, though it's a diagnostic platform rather than a prescribing one, so the two serve different needs.

Biggest Differences

  1. Geographic reach
    Function Health is available in all 50 states compared to Calibrate's 0, which may decide the question before any other signal if you're outside Calibrate's footprint.

Calibrate

Telehealth Platform
75/ 100
Meets baseline compliance standards.
Limited Data· 3/9
Full report →
vs

Function Health

Lab / Diagnostic
79/ 100
Meets baseline compliance standards.
Moderate Confidence· 5/9
Full report →
Generated by Vial · May 14, 2026
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Signal-by-Signal

Compliance Comparison

SignalCalibrateFunction HealthEdge
NPI Registration✗ Not Found✗ Not FoundSame
FDA Enforcement✓ No Actions Found✓ No Actions FoundSame
PCAB Accreditation✗ Not Accredited✗ Not AccreditedSame
LegitScript✗ Not Certified✗ Not CertifiedSame
Physician Credentials✗ Not Disclosed✓ ListedFunction
Vial Trust Score75/10079/100Function
Vial Analysis

Our Assessment

Calibrate
Best for
    Main strength
    No active FDA enforcement actions on record
    Main caution
    NPI registration not confirmed in federal registry
    Function Health
    Best for
      Main strength
      No active FDA enforcement actions on record
      Main caution
      NPI registration not confirmed in federal registry

      Both providers show similar public records. Your choice may come down to treatment type, state availability, and pricing.

      Comparison reflects publicly disclosed federal and state records only. Vial does not audit clinical quality or patient outcomes.

      Provider A

      Calibrate

      DeliveryTelehealth Only
      Price TierMid
      Provider B

      Function Health

      DeliveryTelehealth Only
      Price TierMid
      HQSan Francisco, CA
      Services: Metabolic Health, Longevity Protocols, Cognitive Performance

      Want to run a full compliance report on either provider?

      VIAL

      Comparison based on public federal and state records including NPI Registry, FDA enforcement database, and PCAB accreditation directory. Updated weekly. Not a medical endorsement.