This is ridiculous and completely unrealistic. Most conditions are never really cured and diagnoses are seldom "proven correct". We only have varying levels of improvement and confidence. Patients generally lack the skills to confirm anything themselves, especially because most of them don't understand causality. Did my condition improve because of my physician's treatment, or in spite of it?
Increase funding for large scale clinical studies so that we have sufficient data to develop evidence-based medicine guidelines for a wider range of conditions.