About Clinch Valley CTC Methadone Clinic in Cedar Bluff, VA Adults in the Cedar Bluff, Virginia, area who have been struggling with opioid addiction can receive personalized outpatient care at Clinch Valley Comprehensive Treatment Center (CTC). Clinch Valley CTC offers medication-assisted treatment, or MAT, to adults age 18 and older of all genders. MAT, which combines prescription medication with counseling, is an evidence-based service that has been used successfully at methadone clinics and other opioid addiction treatment centers for several decades.