Mountainside Treatment Center

Mountainside Fact Sheet


Main Campus – 187 South Canaan Road, Canaan, CT 06018

Mountainside Wilton – 372 Danbury Road, Wilton, CT 06897

Mountainside Chappaqua – 480 N. Bedford Road, Chappaqua, NY 10514

Mountainside Huntington – 141 E. Main Street, Huntington, NY 11743

Mountainside NYC Chelsea – 243 W. 18th Street, New York, NY 10011

Mountainside Overview

Mountainside Overview

Mountainside is nationally recognized for the effectiveness of its drug and alcohol addiction treatment programs. Our Integrative Care Model provides a comprehensive set of treatment and care offerings coordinated by a multidisciplinary treatment team to best fit the unique needs and interests of each client. We are lauded for our ability to partner with each client and the client’s family and healthcare professionals in developing and executing individualized treatment plans that promote long-term sobriety.


To raise the standard in comprehensive addiction treatment and provide an unsurpassed treatment experience for our clients.

At A Glance

  • More than 250 employees
  • 90+ acres of private land in Litchfield County, CT
  • Since 2013, Mountainside has committed $30 million to the construction of 75,000 square feet of new facilities on its main campus in Canaan, CT.
  • More than 15,000 clients have been served since Mountainside was founded.
  • The company owns and operates Mountainside Café, which reopened in 2014, after a five-year hiatus. The treatment center’s farm-to-table restaurant a popular meeting place for local residents.
  • In May 2016, Mountainside opened its first off-campus Outpatient Services center in Wilton, CT.
  • Roughly 70 percent of Mountainside’s clients are from the New England area, with approximately 57 percent of those New Englanders coming from Connecticut. About 20 percent of our clients hail from the New York region.

Continuum of Care


We offer a comfortable and compassionate, medically monitored detoxification experience to safely manage the acute physical symptoms of withdrawal. At our state-of-the-art detox center, clients receive 24-hour nursing care, psychiatric services, a personalized wellness plan, and continuing care planning.


Through a unique combination of evidence-based traditional and holistic treatments, our residential clients begin to address obstacles to change, build skills to resist relapse, improve problem-solving skills, and rebuild relationships.

Extended Care

Our Extended Care program helps clients transition to independent sober living by teaching them how to negotiate the demands of the world around them while maintaining a commitment to their long-term sobriety.

Outpatient Services

This program is designed to help educate and support clients in maintaining wellness and sobriety as they live and function in their everyday life. We offer Intensive Outpatient, Outpatient, and Individual Therapy in two locations: our Canaan campus and our outpatient center in Wilton. Outpatient currently accounts for 15 percent of our overall business.

Recovery Coaching

Designed to provide year-long, personalized guidance and support to clients post-treatment, our Recovery Coaching program ensures clients have all critical resources necessary to stay committed to sobriety.


Clinical Treatments

Led by our expert team of licensed and certified clinicians, clients receive individual and group therapy, stress and anger management, relapse prevention, and 12 Step education.

Mind Body Spirit

Mental, physical, and spiritual well-being is unified through holistic addiction treatments therapies and classes such as acupuncture, yoga, and meditation.

Adventure Based Counseling: Individuals gain confidence, build self-esteem, and learn teamwork and communication skills during challenging experiential activities.

Family Wellness

Through family counseling and workshops, clients and their families address the impact of addiction so they can reconnect and heal.

Continuing Care

Specialists Through family counseling and workshops, clients and their families address the impact of addiction so they can reconnect and heal.

Alumni Services

After the conclusion of their substance abuse treatment, we help clients further their recovery, find support, and connect with others who share their goals.


In 1998, a small group of like-minded friends joined together to create Mountainside, a new type of alcohol and drug rehabilitation program centered on the individual rather than a pre-determined treatment methodology. They believed that supplementing traditional therapies with alternative approaches could vastly improve the efficacy of substance abuse treatment and better equip people with the tools they need to maintain long-term sobriety.

Our founders’ belief is now conventional wisdom.

However, we do not measure our success by the industry we changed; we measure it by the lives we have shaped. Our high success rate is both our proof and our pride.

Executive Team

Andre BassoChief Operating Officer

Sarah VerrelliVice President, Business Development

Alexandra Helfer, Vice President, Program Development