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Mountainside Treatment Center

187 South Canaan Road Route 7, Canaan, Connecticut, 06018
Located at the base of the Berkshire Mountains of Connecticut, Mountainside Treatment Center offers comprehensive treatment programs for people suffering from drug and alcohol addiction. Mountainside combines evidence-based methodology with the latest advances in the treatment field to provide an experience unlike any other. Mountainside’s integrative care philosophy ensures that each client follows a program specifically designed to meet his or her individual needs and issues. With a professional and dedicated staff, Mountainside is committed to helping clients achieve lasting, meaningful recovery from addiction.

Facility Highlights

  • Convenient Day and Evening Hours
  • Mind Body Spirit Program
  • Comfortable Medically Monitored Detoxification


  • Medical Detoxification

    Drugs and alcohol have widespread effects throughout your body, including but not limited to the addiction and/or physical/psychological dependence that develops with substance abuse over time. Many organ systems are affected by addiction and will react to withdrawal. The term “medical detoxification” means that there is a trained and licensed medical professional onsite to monitor your vital signs and protect your physical and emotional health as your body goes through withdrawal.
  • Dual Diagnosis/ Co-Occurring Disorders Treatment

    These two terms describe a person who is not only addicted to drugs or alcohol, but also has a mental or emotional illness, such as depression, anxiety, bipolar disorder, etc. Facilities that treat patients with dual-diagnosis or co-occurring disorders provide psychiatric treatment in addition to drug and alcohol rehabilitation services.

Facility Settings

  • Mountains

Meet the Staff

  • Randall Dwenger, MD
    Randall Dwenger, MDMedical Director
    Throughout his 30-year career, Randall has built extensive knowledge in psychiatric evaluation, medication management, and individual psychotherapy services. His career path has led him to a variety of experiences, from his development and management of a detox center to his psychiatric work with veterans. He has been the Consulting Psychiatrist at Mountainside since 2008 and believes that there is great hope that each person who wants to recover has the ability to do so. At Mountainside, he provides guidance and leadership over the detoxification program, ensuring that safe and efficient services and practices are provided to our clients.
  • Sarah Osbourne, LPC, LADC, NCC, MATS
    Sarah Osbourne, LPC, LADC, NCC, MATSDirector, Clinical Operations
    Sarah holds a dual Master of Science in Clinical Mental Health Counseling and Counselor Education. She is a Licensed Professional Counselor, Licensed Alcohol and Drug Counselor, National Certified Counselor, and Medication Assisted Treatment Specialist. Sarah has extensive experience working with individuals suffering from addiction, including those with co-occurring disorders, personality disorders, and a history of trauma. As the Clinical Director, Sarah oversees all clinical programming in detox, residential and out-patient treatment. In partnership with the Program Development team, she develops and coordinates programming updates to ensure all clients are receiving the highest quality care and treatment interventions. In her spare time, Sarah enjoys gardening, running with her dog, learning about Buddhism, and reading about neuropsychology.

Financial Details

  • Financial Assistance Offered

Treatment Center Links

Rehabs 360 Guide


Located in the foothills of the Berkshire Mountains in rural northwestern Connecticut, Mountainside Treatment Center offers a full spectrum of care for adults struggling with substance use disorder and dual diagnosis. Programs include medical detox, residential care, outpatient treatment, and sober-living facilities. The center is also among the 17.6 percent of Connecticut-based facilities that offer dedicated treatment for adolescents, in the form of outpatient care.


Admission begins with a phone screening to determine the best course of treatment. The detox program includes 24-hour support and medication monitoring, plus an introduction to counseling and holistic therapies such as acupuncture (offered at 18.6 percent of Connecticut-based facilities). When necessary on both detox and residential programs, the facility offers medication-assisted therapy (MAT) using Suboxone, Sublocade, and/or Vivitrol.

Residential treatment takes place on a 30-day program that combines 12-step principles with individual, group, and family therapy, plus evidence-based modalities such as Seeking Safety. Mountainside also offers holistic treatments such as acupuncture, yoga, meditation, massage therapy, and adventure-based counseling. Adventure-based counseling involves overnight wilderness trips, high and low ropes courses, fitness classes, hikes, and climbing.

The Extended Care — or transitional living — program is broken down into three phases, and includes employment at a local facility, to help clients transition to life after treatment. Outpatient options consist of a six-week intensive outpatient program (IOP), offered at 45.7 percent of Connecticut-based facilities, a 10-week standard outpatient program, and ongoing individual therapy.

Clients plan for discharge with their case manager during treatment, and continuing care staff maintain contact with them after discharge to help them on their way to continued sobriety. Alumni programming includes weekly recovery meetings, regular alumni events, volunteer opportunities, and an alumni newsletter.


The treatment team at Mountainside includes licensed and credentialed clinicians including family therapists, addiction counselors, board-certified psychiatrists, medical doctors, and registered nurses, as well as practitioners trained in alternative healing. The 23 individuals polled by Rehabs.com to date on the staff were mostly impressed:

Staff Experience and Training: 4.3/5


The facility offers both shared and private rooms for male and female clients in a luxurious, well-appointed campus sitting on 75 acres of private land. The rooms offer panoramic views, abundant natural light, and soothing color pallets. Private suites are available for individuals going through detoxification treatment. These luxury detoxification suites include a king-sized bed, dining area, desk, flat-screen TV, lounge area, and full private bathroom.

Mountainside’s grounds are equipped with an auditorium, dining hall, acupuncture and yoga studios, basketball courts, a rock climbing wall, a fitness center, a chapel, a large outdoor patio, activity fields, jogging paths, challenge courses, a zipline, hiking trails, and waterfalls. The 23 individuals polled by Rehabs.com to date on the center's amenities were impressed:

Cleanliness: 4.7/5
Exercise and Leisure: 4.4/5


Alumni polled by Rehabs.com gave mostly positive feedback. The 15 alumni polled on the facility's performance in a variety of metrics indicated that they would recommend the center, and found its holistic and family programming impressive.

Holistic Offerings: 4.7/5
Would Recommend: 4.6/5
Family Participation: 4.2/5

The reviewers repeatedly praised Mountainside's mind, body, and spirit programming; scenic grounds; accommodations; and alumni network. “I cannot emphasize enough what a first-rate, progressive place Mountainside is, and it is the sole place I'd recommend to others, and that I would return to if I run into difficulty that requires in-patient treatment again," B.S.W. wrote in a representative comment. Numerous reviewers also credited the facility with saving their lives.

Despite positive reviews, many alumni noted the high cost of treatment as the facility's most glaring shortcoming. There were also isolated complaints that the center was not well set up to accommodate women, and of questionable managerial practices. Alumni were also less impressed by the center's counseling options.

Counseling Options: 3.5/5

The center also had mostly positive feedback on secondary sites at the time of this writing, with average ratings of 4.7 stars based on 83 reviews on Facebook (where the facility can manage its own page), 4.5 stars based on 59 reviews on Google, 2.5 stars based on six reviews on Yelp, and 4.6 stars based on five reviews on CiteHealth.[1] [2] [3] [4] The reviews mostly echo those submitted to Rehabs.com, praising the center's comfort and care, but criticizing its expense and billing practices.


Loved ones polled by Rehabs.com also gave mostly positive feedback. The eight friends and family members polled on a variety of performance areas gave the facility solid ratings, especially for the involvement of family members.

Family Participation: 4.5/5
Would Recommend: 4/5
Holistic Offerings: 4/5

When asked about strengths of the facility, many loved ones praised the center's peaceful, serene location, staff, and accommodations. "Mountainside is in a beautiful location. My sister said she felt at ease there. She really liked the counselors and said the food was good," K.C. wrote in a representative comment.

When asked to comment on facility weaknesses, loved ones repeatedly complained of questionable billing practices, and some also complained of a lack of aftercare.


There is currently no information provided by Mountainside regarding the cost of treatment. However, the facility accepts “most insurance plans” including Aetna, Blue Cross Blue Shield, Cigna, United Healthcare, ValueOptions, and more. The facility offers to connect clients to healthcare loans if necessary. The 23 individuals polled by Rehabs.com to date on the center's affordability gave mixed feedback.

Affordability: 3.5/5

[1] https://www.facebook.com/pg/MountainsideTreatment/reviews/?ref=page_internal
[2] GoogleReviews
[3] https://www.yelp.com/biz/mountainside-treatment-center-canaan?osq=Mountainside+Treatment+Center
[4] https://citehealth.com/rehab-centers/connecticut/cities/canaan-cdp-in-litchfield-county/mountainside-treatment-center#reviews

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