Mountainside Treatment Center – NYC is an addiction treatment center located at 243 W 18th St, New York, NY 10011. With a focus on providing support and resources for individuals facing addiction, the center is committed to fostering recovery in a compassionate environment. The facility is open Monday through Friday, with varying hours, and is dedicated to helping clients navigate their path to wellness. For more information, you can visit their website at mountainside.com or call +12125410898.

What they offer:

Alcohol Heroin Inpatient Residential Outpatient Telehealth Virtual Aftercare Continuing Care Day Treatment PHP Intensive Outpatient IOP Medical Detox Mental Health Services Standard Outpatient LGBTQ Friendly Professionals Programs For Families Programs For Teens Veterans Programs

Working Hours:

Monday: 9 AM–8 PM
Tuesday: 9 AM–8 PM
Wednesday: 9 AM–8 PM
Thursday: 9 AM–8 PM
Friday: 9 AM–8 PM
Saturday: Closed
Sunday: Closed

Facility Gallery

AF1QipPdmkir6AcBIx9dhCtwmrjD36b4Ab5O RTow2KXw128 h86 k no

AF1QipPdmkir6AcBIx9dhCtwmrjD36b4Ab5O RTow2KXw408 h272 k no

Call the Facility

+12125410898

Anxiety Symptoms

Depression Treatment

Signs of Bipolar Disorder

OCD Treatment

Alcohol Addiction

Opioid Addiction

Fentanyl

ADHD Diagnosis

Featured Resources

Podcasts

151. Neurobiologist, Philosopher, and Addict

Dev

03/18/2026

People I (Mostly) Admire

Alcohol, Prescription Drugs

Listen

FAQ

Dev

03/13/2026

Your Questions Answered What is this website, and how can it help me? Our site is a comprehensive directory connecting you with verified addiction treatment centers across the United States. It simplifies your search by allowing you to filter facilities by location, needs, and insurance coverage. You’ll also find educational resources, recovery stories, and more. […]