Mountainside Treatment Center

New York City, NY

Mountainside Treatment Center has a clinic in Chelsea, a suburb in New York City, New York. Contrary to its name, there’s no mountainside here, but they…

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About Mountainside Treatment Center

Mountainside Treatment Center has a clinic in Chelsea, a suburb in New York City, New York. Contrary to its name, there’s no mountainside here, but they do offer plenty of outpatient care for adults with drug and alcohol addictions.

At their center, you’ll have a wide range of options for treatment. There’s a meditation and yoga room if you prefer more holistic care. There are socialization programs in their common lounge and more formal workshops to learn life skills. Classes can include harm reduction and tips to prevent drug abuse among teens. They also have a full kitchen for events.

In addition, there are free support groups that you can join. Specific groups meet at set times during the day and evenings. There’s one for professionals, another for LGBTQ+ members, and another for families. Groups can meet virtually if they can’t make it in person. There’s also AA and traditional peer support as well.

They are fully accredited by The Joint Commission and CARF and LegitScript certified, so you know they meet a standard level of care.

Frequently asked

Where is Mountainside Treatment Center located?
Mountainside Treatment Center is located in New York City, NY. Call our free, confidential helpline at 1-888-685-2199 to confirm admissions, availability and directions.
Medically reviewed by Dr. Laura Whitman, MD Last updated September 18, 2026

Directory information is compiled from public and provider-supplied records of addiction treatment centers across the United States. Please independently verify licensing, accreditation and insurance before choosing a provider.

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