Mountainside Addiction Treatment Center with floor-to-ceiling lobby windows.


Each client is unique, and to meet their special set of recovery needs, we offer a complete spectrum of addiction treatment programs featuring a range of proven clinical therapies and innovative, holistic addiction treatments. Our full continuum of care enables us to guide clients sequentially through every step of their journey or help them through a particular stage of their recovery.

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A detox nurse taking care of a patient at Mountainside treatment center in Connecticut.


For individuals dependent on drugs or alcohol, the journey of recovery often starts with detox. This critical process of removing toxic substances from the body serves as the catalyst for a healthier life free from addiction.

A beautiful light-filled bedroom suite with contemporary design at Mountainside treatment center.


Our intensive 35 night inpatient residential treatment program serves as the catalyst for you to completely transform your life and gain the tools needed to maintain sobriety after completing treatment. Removed from the stress, triggers, and temptations of everyday life, our serene campus at the foot of the Berkshire mountains serves as the perfect backdrop for you to fully engage in your recovery.


Extended Care

To fortify your newfound sobriety, you may need time and space away from triggers and negative influences to strengthen your recovery. Extended Care, our structured sober living program, consists of three phases to help you develop the fundamental skills and abilities you need to successfully live on your own as a person in recovery. As you transition from one phase to the next, you will gain greater independence and be better prepared for independent living.

Female client and clinician in an outpatient addiction treatment counseling session

Outpatient Services

When it is difficult to take time away from family, work, or school to focus on addiction treatment, Mountainside Outpatient Services offers a convenient and effective solution. With multiple outpatient centers in Connecticut and New York, flexible hours, and telehealth service options, you can access quality addiction treatment that fits seamlessly with your schedule and smoothly integrates into your daily life.

Three adolescents in recovery from drugs and alcohol sitting in a tree and hanging out together

Adolescent Services

Our innovative Adolescent Services program – open to high school aged teens who are struggling with alcohol or drug abuse – provides your teen with the counseling and guidance they need to get better and stay sober.

The hands of a doctor and patient reviewing medical paperwork and discussing medication assisted treatment

Find the Right Treatment Program for You

Searching for the right addiction treatment program can be overwhelming. Our Find the Right Treatment Program quiz is a great first step. Through a series of simple questions, learn what treatment options are available to address your needs.

For a more personalized, in-depth assessment, call now to speak with our experienced admissions team who will review your background, discuss your unique goals, and help you move forward in your recovery journey.

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We work with most private insurance plans, including Aetna, Anthem, BlueCross BlueShield, Beacon Health Plans, Cigna, Empire BlueCross BlueShield, GEHA, Meritain Health, ValueOptions, and many others. To find out if you’re covered for addiction treatment at Mountainside, you can verify your insurance benefits by clicking below.

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