CORNERSTONE: Your Foundation to Results

it's your patient

We believe that behind every test request we receive, there's a patient whose successful treatment outcome and quality of life depend on the accuracy of our results and affordability of our services.

it's your practice

Healthcare providers are on the front lines in the battle against prescription misuse. Monitoring controlled drugs throughout therapy is an important tool for improved outcomes. Cornerstone Diagnostics testing provides objective, clinically actionable data to inform your decision-making.

it's our promise

Proven testing quality and accuracy, delivered in a fraction of time vs. other labs, at a reduced cost to the patient: PremierTox equips providers with results they can trust, to inform their treatment decisions. Experience the Cornerstone Diagnostics difference today.