An intensive outpatient program (IOP) is a structured treatment program for substance use (and often mental health) that you attend for several hours a day, a few days a week, while living at home. For adults, IOPs usually provide at least 9 hours of treatment a week, often as three-hour sessions three to five days a week. It's more support than a weekly counseling appointment and less than living at a residential rehab.
People choose IOP when they need real treatment but also need to keep working, go to school or take care of family. Others step down to IOP after detox, residential rehab or a partial hospitalization program.
Where IOP fits among levels of care
Addiction treatment is usually described as a ladder of care, using levels developed by the American Society of Addiction Medicine (ASAM). Here's where IOP sits:
| Level of care | Typical time in treatment | Where you sleep |
|---|---|---|
| Outpatient counseling | Usually under 9 hours a week, often 1 to 2 sessions | Home |
| Intensive outpatient (IOP) | About 9 to 19 hours a week for adults | Home |
| Partial hospitalization (PHP) | 20 or more hours a week, often 5 to 6 hours a day | Home |
| Residential treatment | 24 hours a day | At the program |
| Inpatient / hospital | 24-hour medical care | Hospital |
State Medicaid rules that follow ASAM, such as Virginia's ARTS Level 2.1 standards, describe adult IOP as at least 9 hours of services per week. Teen programs often require fewer hours, commonly at least 6 a week.
What happens in an IOP
SAMHSA's treatment guide on intensive outpatient care, TIP 47, describes the core of IOP as group therapy plus individual counseling, education and support. A typical program includes:
- Group therapy, most of the time. Groups use approaches like cognitive behavioral therapy (CBT), relapse prevention, motivational interviewing and coping skills.
- Individual counseling with your own therapist, often weekly.
- Education about addiction, triggers, cravings, sleep, and how substances affect the brain and body.
- Family sessions or family education, in many programs.
- Drug and alcohol testing, so you and your team can see how you're doing.
- Psychiatric care and medication when needed, including medications for opioid or alcohol use disorder, and treatment for depression, anxiety or trauma.
- Help with next steps: recovery support groups, sober housing, work or school.
A sample week
Schedules vary, but many adult IOPs look something like this:
- Monday, Wednesday and Thursday, 6 to 9 PM: group therapy
- One individual session a week, scheduled around your job
- Occasional family session or psychiatry visit
Many programs offer morning or evening tracks. Some also offer IOP by telehealth, which can help people in rural areas or without reliable transportation.
How long does IOP last?
IOPs commonly run for several weeks to a few months, but length depends on your progress and your insurance approvals rather than a fixed calendar. Some people step down to regular outpatient care after IOP and keep seeing a counselor for months.
Does IOP work?
Research suggests that for many people, IOP works about as well as residential or inpatient treatment. A review published in Psychiatric Services found that IOPs produced outcomes comparable to inpatient and residential care for many people with substance use disorders (PMC). The authors also noted that people with severe medical or psychiatric needs, or very unstable living situations, may need a higher level of care first.
As with any treatment, staying engaged and continuing some kind of care after the program ends matter a great deal.
Who is IOP a good fit for?
IOP often fits people who:
- Don't need medical detox right now, or have already finished detox
- Have a safe, stable place to live, ideally without drugs or alcohol in the home
- Can get to sessions several times a week (or log in for telehealth)
- Want or need to keep working, studying or caring for children
- Are stepping down from residential treatment or PHP
IOP may not be enough, at least at first, if someone:
- Is at risk of dangerous withdrawal. Alcohol and benzodiazepine withdrawal can be dangerous and need medical supervision
- Has tried outpatient care several times and keeps relapsing quickly
- Has serious mental health symptoms, including thoughts of suicide, that need closer care
- Lives somewhere where substance use is constant and hard to escape
A clinical assessment, often free from the program, is the best way to decide.
IOP vs PHP
Both let you live at home. The difference is intensity. PHP, sometimes called day treatment, runs most of the day on most weekdays and is close to a full-time commitment. IOP is part-time, so many people keep their jobs. People often start in PHP and step down to IOP as they get stronger.
Cost and insurance
Under the Affordable Care Act, substance use disorder and mental health services are essential health benefits for individual and small-group plans (HealthCare.gov), and federal parity law means plans can't make addiction benefits harder to use than comparable medical benefits (U.S. Department of Labor). In practice, most private plans and many state Medicaid programs cover IOP when it's medically necessary. Plans often require prior authorization and review progress every week or two.
What you pay depends on your deductible, copay or coinsurance, and whether the program is in your plan's network. Ask the program for a free benefits check before you start.
Across the 15 states currently listed on this site, we show 2,149 programs that report offering intensive outpatient treatment for substance use. Of those, 1,755 report accepting private insurance, 1,556 report accepting Medicaid, and 1,819 report offering telehealth. These figures are based on SAMHSA data, so confirm details directly with each program.
Questions to ask an IOP before you start
- Is the program licensed by the state? Is it accredited?
- How many hours a week, and which days and times?
- Do you offer evening or telehealth groups?
- Is there a psychiatrist or nurse practitioner on staff? Do you offer medication for addiction?
- How do you handle co-occurring depression, anxiety or trauma?
- Are you in network with my insurance, and will you get authorization?
- What happens after IOP ends?
Finding an IOP near you
Browse programs by state and use the "IOP" filter on any city page. Popular starting points include New York, Atlanta, Seattle and Boston.
Getting help
If you're not sure whether IOP is the right level of care, or you want help finding one that takes your insurance, call (844) 545-0997 to talk with an admissions counselor at TOS.
You can also call the free, confidential SAMHSA National Helpline at 1-800-662-4357, any time. If you or someone you love is in crisis, call or text 988.