About Allentown Comprehensive Treatment Center in Orefield, PA Allentown Comprehensive Treatment Center, located in Orefield, Pennsylvania, offers medication-assisted treatment (MAT) to adults age 18 and older of all genders who are struggling with opioid addiction. Researchers have discovered, through decades of studies, that the use of MAT helps people who are battling opioid use disorder achieve better recovery outcomes. Some methadone clinics use only one medication to help reduce the often staggering effects of withdrawal and eliminate cravings, but at our Orefield center, we use both methadone and Suboxone.