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We’re here to answer your questions including clinical drug monitoring, urine drug testing, toxicology, and results interpretation. Please do not include any specific patient name or test order information in this form.

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Phone Numbers

Client services
1.866.MY.QUEST (1.866.697.8378)

Drug Toxicology Consultation – for healthcare providers
For assistance with prescription drug monitoring results, please contact Quest Diagnostics toxicology consultant specialists. They are available Monday – Friday, 8:00 AM to 10:00 PM Eastern Standard Time.

1.877.40.RXTOX (1.877.407.9869)