Trusted Answers for Your Medical Specialties

Pain Management

Medication Monitoring provides empirical evidence of a patient’s adherence to, or departure from, the pain treatment protocol. Want to reduce your vulnerability to regulatory examination and get some peace of mind? Medication monitoring is the way to go.
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Addiction Monitoring

Keystone supports the treatment of drug addiction by helping physicians monitor the elimination of drugs both prescribed and illicit from the patient’s system. We use LC/MS/MS because it’s sensitive and specific and because it’s the most advanced technology in the industry.


Worker’s Compensation

Our instant screening test is DOT approved, which means it can be used to test DOT regulated employees.

Workplace Testing

Workplace safety matters. That’s why Keystone offers a complete line of lab-based drug and alcohol tests to help you make informed decisions about your current and prospective workforce.