Our Nighttime Intensive Outpatient Program makes it easy to accommodate drug and alcohol treatment into busy schedules, so you or your loved one can get help with addiction while working, attending school or raising a family. Woburn Wellness Addiction Treatment Nighttime IOP sessions are offered Monday through Thursday from 6 p.m. to 9 p.m. Like with our traditional Greater Boston IOP, treatment includes goal setting, drug education, skill-building and personal inventories in group settings. Individual therapy is scheduled as needed.