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American Addiction Centers National Rehabs Directory

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

Patient Reviews

Overall Ratings
  • 3.9
    Avg. score from 73 reviews
  • 4
    Accommodations & Amenities
  • 3.9
    Treatment Effectiveness
  • 3.9
    Meals & Nutrition
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  • Accommodations & Amenities
  • Treatment Effectiveness
  • Meals & Nutrition
I went through Mountainside in 2008 for 51 weeks after a couple, brief unsuccessful visits. I lost most of my speech from drinking by age 25, but now back to normal and approaching 12 years sober. I loved my time there, but also spent 2.5 years in local sober houses after treatment which was awesome. If you wanna make it work or are at rock bottom, you can get and stay sober. Addicts can be cranky, anxious, rude, and want control... If they leave early or have a bad experience with a rehab it’s usually (but not always) because they aren’t ready or aren’t desperate enough. Mountainside is MUCH nicer and bigger these days, but if you want it bad enough you can get sober anywhere. I bought a house in the area and live 2 miles away. Unfortunately, as Mountainside exploded financially and across the east coast, it’s now almost completely separated from the local community. Anyone who went there prior to maybe 2013 is basically not part of the new “wealthier” club, and therefor feel cutoff from the new Mountainsiders, which stinks because once you leave a rehab and your counselors you tend to lean on those who went through the grind and can take you to meetings and help integrate. I LOVED Mountainside so much, lived and went to meetings and events there for years... now I drive by it everyday and feel closed off, been there once in 6 years, same with my friends... I understand business is business, but what gave me hope through 51 weeks was seeing hundreds of alumni showing up to the Friday and Sunday night meetings, and starting to make relationships with those people who would drag me to meetings. I just wished the current/newer residents had that taste of real world early sobriety before they were discharged. That in my opinion, is more important than post departure out-treatment programs... but that’s my opinion,
  • Accommodations & Amenities
  • Treatment Effectiveness
  • Meals & Nutrition
MTC saved my life! I am so proud to be 4 years sober.
  • Accommodations & Amenities
  • Treatment Effectiveness
  • Meals & Nutrition
Mountainside not only saved my life but my husband as well!! I would forever be grateful for Mountainside.
Austin Clark
    The best place on earth that my son could have attended. My 26 year old son went through their detox program and then residential program and ultimately into outpatient and he is celebrating his 2 year of recovery. As a parent I felt involved and supported throughout these two years via their family wellness program. My son is an active Alumni and very involved in his education these days - we are thrilled and highly recommend Mountainside. After reviewing some of the reviews on this site, I felt compelled to give an honest review, I hope that this helps someone
    Roseann W.
      My son Bryan has been at Mountainside since November of 2018.Bryan currently is in the Extended Care Program. There has been such a significant change in him it's unbelievable this of course this is due to the tremendous care he has been given. While his stay at Extended Care he has been so fortunate to have the greatest team of supervisors caring for him. The team is amazing and has brought out the best of my son. One in particular has been an asset to my son's continuing recovery his sense of compassion and understanding with him is overwhelming; they all continue to bring out the best in him. I am so grateful to Mountainside and their assistants to have my son back.; I would strongly recommend Mountainside for anyone dealing with an addiction they truly care.