A collage of all Mountainside addiction treatment center locations in CT, NY, NJ and MA


Mountainside offers a wide range of alcohol and drug addiction treatment programs at multiple locations across the Northeast to help you access the therapy and care you need to heal your mind, body, and spirit. At each center, you can expect high quality care and individualized holistic treatment plans tailored to your needs. Mountainside clients have access to a full continuum of addiction treatment programs and offerings across our locations in the Northeast, allowing you to transition seamlessly into our programs no matter where you are in your recovery journey.

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Main entrance and lush green trees at Mountainside addiction treatment center in Cannan, CT.

Mountainside Canaan

Mountainside’s main campus located in Canaan, CT offers a full continuum of addiction treatment and care, including inpatient care. This beautiful spot in the Northeast provides a perfect, serene backdrop for you to focus on healing.

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Mountainside addiction treatment center outpatient reception area

Mountainside Wilton

Mountainside Wilton in Fairfield County, CT, provides a warm, welcoming environment for you to receive first-rate alcohol and drug addiction treatment while remaining within your community. Our outpatient services meet at flexible times so you can still receive treatment that works with your busy schedule.

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A modern and light-filled lounge seating area at Mountainside Treatment Center's NYC location.

Mountainside NYC Chelsea

Mountainside NYC Chelsea is a hub for recovery, offering an array of services for those in recovery, addiction treatment professionals, and the community. In addition to it’s popular events and modern amenities, Mountainside NYC Chelsea also offers Recovery Coaching, which partners you with a sober mentor to help you reach your short and long-term recovery goals.

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Mountainside addiction treatment center lobby with light, bright & modern decor in Chappaqua, NY

Mountainside Chappaqua

At Mountainside Chappaqua in Westchester County, NY, we provide individualized addiction treatment that fits easily into your schedule, giving you the ability maintain your daily responsibilities without sacrificing your health.

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Huntington Recovery Coaching Office at Mountainside Addiction Treatment Center

Mountainside Huntington

At Mountainside Huntington, lifesaving treatment is just minutes away from home. Continue working, going to school, and caring for your family — all while working towards your recovery goals. Flexible scheduling options allow you to continue your treatment at times convenient to you.

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A long corridor at Mountainside addiction treatment center outpatient location in Ramsey, New Jersey.

Mountainside Ramsey

Mountainside Ramsey provides you with the individualized addiction treatment and care you need, no matter what stage of recovery you are in. Our convenient location in Bergen County is easily accessible to residents living in North Jersey, allowing you to receive addiction treatment close to home without disrupting your busy schedule.

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A computer screen with outpatient addiction treatment counseling session via telehealth

Mountainside Massachussets

At Mountainside Massachusetts, high-quality care to drug and alcohol addiction is available in the comfort of your home. We offer a wide variety of virtual programs and services with flexible scheduling to accommodate your needs.

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