The level-of-care mix among Tennessee's listed centers tells you where to realistically begin. Detox, offered by 22%, is the medically supervised first step for anyone physically dependent on alcohol, opioids, or benzodiazepines — it manages withdrawal safely, but on its own it is stabilization, not treatment. Residential care, available at 25%, provides around-the-clock structure and removes you from the environment tied to your use, which some people need before any other work can stick. Outpatient programs, offered by the large majority at 90%, let you live at home while attending scheduled counseling and group sessions — the most flexible option and usually the most affordable, ranging from standard weekly visits to intensive day programs. Medication-assisted treatment, at 53%, pairs FDA-approved medications such as buprenorphine, methadone, or naltrexone with counseling, and is considered the clinical standard of care for opioid use disorder. Aftercare, offered by 92%, covers the ongoing support — alumni groups, recovery coaching, sober-living referrals, and relapse-prevention planning — that follows a formal program. Because many Tennesseans entering treatment also live with depression, anxiety, or trauma, ask whether a program treats co-occurring mental health conditions alongside substance use. Most people don't pick a single level; they move through several, stepping down in intensity as recovery stabilizes.