Vial Provider Comparison

Defy Medical vs Function Health

Same category. Different operational transparency.

SignalDefy MedicalFunction Health

Pharmacy Disclosure

Do they name their pharmacy partner?

✓Names its pharmacy partner

✕No pharmacy partner named

Physician Oversight

Are prescribing clinicians named?

✓Named clinical leadership

!Team described in aggregate

Pricing Transparency

Is pricing shown before signup?

✓Public pricing (Mid)

!Pricing behind membership

Federal Enforcement History

Any FDA, DEA, or OIG actions?

✓No federal actions found

State Availability

How widely is care available?

✓48 states

✓Available in all 50 states

Membership Model

Is a paid membership required?

✓No membership required

!Paid membership required

Data & Privacy

Any reported HIPAA breaches?

✓No breaches on record

Updated May 26, 2026

Scores based on operational, compliance, and transparency signals tracked by Vial.

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