For more than four decades, Chestnut Health Systems™ has provided comprehensive addiction treatment for adults ages 18 and older. Addiction and mental illness are treatable yet chronic health problems. Many individuals living with alcohol and drug addiction also have a mental health issue. Our research-tested programs address both addiction and mental health to help adults achieve recovery and maintain sobriety. We believe that people should get addiction treatment in the least restrictive environment possible.


An assessment is the first step in determining what treatment, if any, is needed. It takes into account all aspects of a person’s life to ensure that individual needs are addressed. To learn more, call us at 888.924.3786. For Madison and St. Clair Counties and for the Metro East area, call 618.877.4420. For the Hillsboro, Missouri area, call 800.446.0972.

Based on assessment results, we create a unique treatment plan. Length of treatment depends on the person's progress toward goals.

Medically-Monitored Detoxification

This type of treatment is for those experiencing withdrawal from alcohol, abuse of prescribed medications, heroin, or other street drugs and who do not require hospitalization. Care is supervised around the clock. Admission to the detox unit is voluntary. We accept only those individuals who choose to come to us. Chestnut is not prepared to work with persons who are experiencing serious medical problems or complications. The unit is staffed with nurses and behavioral health professionals but is not a hospital.

Persons may refer themselves for crisis/detox stabilization or may be referred by a hospital, police department, mental health agency, social service agency, or family member.

Length of stay depends on symptoms. Clients spend time in groups that meet several times a day and that provide education on topics helpful to those in detox or recovery.

Chestnut offers telephone and walk-in screenings.

Outpatient Treatment

This type of treatment lets individuals work on their recovery while living at home. It is appropriate for those who are struggling with addiction and are ready to learn to abstain from substance use, are motivated to change, and have a supportive living environment. Outpatient treatment involves up to eight hours of counseling each week. Patients are encouraged to continue their work in self-help groups such as Alcoholics Anonymous (AA), Narcotics Anonymous (NA), and Celebrate Recovery.

Intensive Outpatient Treatment

This type of treatment requires nine or more hours of counseling each week. Treatment occurs in a small group setting. Length of treatment is determined by the patient’s needs. As with outpatient treatment, participation in self-help groups is encouraged.

Residential Treatment

This type of treatment is for adults who need a structured and supportive environment to maintain recovery and who require help to prevent further damage to their physical and emotional health. Licensed and certified counselors provide treatment in a comfortable setting. Residents participate in individual, group, and family counseling and learn life skills such as decision-making, stress management, assertiveness, coping, and relapse prevention. Care is supervised 24 hours a day. Residents have access to a psychiatrist, medical services, catered meals, and recreation. An important part of residential treatment is developing a continuing care program, which may include outpatient counseling and referrals to community support groups.

Medication-Assisted Treatment

This type of treatment helps people living with addiction to deal with the short-term and long-term effects of withdrawal. MAT helps individuals manage physical symptoms and reduce cravings while focusing on recovery and behavior changes. MAT combines medication, counseling, and community support to help people overcome dependence on opiates like heroin and prescription painkillers.

Gender-Specific Treatment

Treatment at Chestnut is gender-specific, allowing men and women to focus on issues specific to their strengths, needs, and barriers. While both genders may face common issues, such as relationships, family or origin, parenting, anger, spirituality, and dealing with emotions, providing gender-specific treatment creates a safe environment for exploring these topics.

For Families

Chestnut strongly encourages families to participate in their loved one’s treatment. Substance use affects the entire family. It may cause communication and trust to break down. For a person to recover, his or her family needs to understand addiction, learn the importance of family support, and make adjustments to their own behavior. Further, family members need support while their loved one works toward recovery. Chestnut’s family program helps family members to understand the addiction process, how to recognize relapse, and how to better communicate.

For more information, please call us at 888.924.3786. For Madison and St. Clair Counties and for the Metro East area, call 618.877.4420. For the Hillsboro, Missouri area, call 800.446.0972.