Recovery is possible. We're here.
Mountainside NYC is a premier outpatient recovery hub in Chelsea — offering clinical excellence, radical transparency, and a community built for lasting change.
Where are you in this?
The Chelsea Hub · 243 W 18th St
TRUSTSYSTEM™
Where are you right now?
Select the statement that most closely reflects your current experience. We'll show you the path most relevant to you.
Your Journey
Every path to recovery is different.
Your path to recovery starts here.
We meet you where you are — and we don't give up.
Confidential Assessment
A brief call with our admissions team to understand your situation, history, and goals. No judgment. No pressure.
Level-of-Care Recommendation
Our clinical team determines the right program — IOP, OP, MAT, or recovery coaching — based on your specific needs.
Insurance Verification
We handle the insurance process for you, clarifying coverage before your first session so there are no surprises.
Begin Treatment
Start your program at our Chelsea hub, with a dedicated clinician and recovery coach supporting you from day one.
Peer Support · Chelsea, Manhattan
Why Mountainside NYC
"Recovery is possible for everyone. We meet you where you are — and we don't give up."
Mountainside Treatment Center · Est. 1998
Treatment Programs
A full continuum of care, in the heart of Chelsea.
Every program is built around your history, your circumstances, and the life you're returning to.
Family Wellness Program
Integrative Wellness · Yoga & Mindfulness
Intensive Outpatient
Structured care, real-world integration.
Our IOP combines group therapy and individual counseling sessions to address the root causes of addiction and develop robust relapse prevention skills. Designed for those who need structured support while maintaining daily responsibilities.
Outpatient Program
Flexible support for sustained recovery.
Standard outpatient care provides ongoing therapeutic support as you build and maintain your recovery in everyday life. Individual therapy sessions are also available for those seeking one-on-one care exclusively.
Medication-Assisted Treatment
Evidence-based pharmacotherapy.
MAT utilizes FDA-approved medications to minimize severe cravings and withdrawal symptoms that can derail recovery. Our program offers Suboxone, Sublocade, and Vivitrol in combination with clinical therapy.
Recovery Coaching
A mentor for the day-to-day.
Recovery coaching is a peer-to-peer program pairing you with a certified coach who has lived experience in recovery. Your coach provides daily communication, accountability, and guidance through the challenges of early sobriety.
Telehealth Services
Treatment from wherever you are.
HIPAA-compliant video sessions with licensed clinicians and certified recovery coaches. Telehealth removes geographic and logistical barriers, making evidence-based care accessible from the privacy of your home.
Specialized Programs
Care that sees the whole person.
Targeted tracks address the unique recovery needs of specific communities: Young in Recovery (college-aged), Professionals in Recovery (career/financial stress), LGBTQ+ Resilience in Recovery, Adolescent Services, and Family Wellness.
The Clinical Team
The people behind your care.
Every clinician, coach, and specialist at Mountainside NYC is selected for their credentials and their commitment to genuine human connection. The roster below reflects the actual team serving the Chelsea hub and the broader network that supports it — sourced directly from Mountainside's published team directory.
Source: mountainside.com/about-us/team/ · Verified April 2026
Multidisciplinary Care Team
Every clinician, coach, and specialist selected for credentials and human connection.
Clinicians and coaches explicitly assigned to the Chelsea, Manhattan location — the core of your day-to-day therapeutic experience at Mountainside NYC.
Outcomes & Testimonials
Results you can hold us to.
We publish our outcomes because transparency is the foundation of trust. The numbers below come from our internal post-discharge surveys and 6-month follow-up calls — not from marketing materials.
All patient narratives are anonymized and shared with written consent.
0
90-Day Sobriety Rate
Among IOP completers
Internal outcomes survey, 2023
0
Program Completion Rate
Across all outpatient levels
Internal outcomes survey, 2023
0
Report Improved Family Relationships
At 6-month follow-up
Post-discharge survey, 2023
0
Years of Outcomes Data
Founded 1998
Mountainside Treatment Center
Program Performance Data
Completion & sobriety rates by program.
The following data reflects outcomes for clients who completed at least 75% of their prescribed program. Sobriety rates are self-reported at 90-day and 180-day post-discharge intervals.
Intensive Outpatient (IOP)
Outpatient Program (OP)
Medication-Assisted Treatment
Recovery Coaching
Telehealth Services
Methodology Note
Data reflects 2023 cohort. Sobriety is self-reported via structured follow-up interviews conducted by independent staff. Completion is defined as attending ≥75% of scheduled sessions. Results may vary based on individual circumstances.
"Accountability to outcomes is how we hold ourselves to the standard our clients deserve."
Mountainside Treatment Center · Clinical Leadership
Third-Party Validation
CARF International
Three-Year Accreditation — highest level awarded. Requires demonstrated outcomes measurement and continuous quality improvement.
The Joint Commission
Gold Seal of Approval. Requires rigorous performance measurement and patient safety standards.
ASAM Level 3.7
Medically Monitored Intensive Inpatient certification. One of seven facilities nationally to hold this designation.
Individual Therapy
"We didn't just talk about the drinking. We talked about why. That was the difference."
M.R. · IOP + Recovery Coaching · 2 years sober
Patient Journeys
In their own words.
M.R.
Age 34 · Alcohol
Program
IOP → Recovery Coaching
Sobriety
2 years, 3 months
I didn't think I was sick enough.
High-functioning and hiding
M.R. was a marketing director at a mid-size firm in Midtown. By outward appearances, everything was fine. Inside, she was drinking a bottle of wine every night — sometimes more — and had been for six years. 'I kept telling myself I wasn't an alcoholic because I never missed work. I was using my job as proof that I was okay.'
D.K.
Age 28 · Opioids
Program
MAT + IOP
Sobriety
3 years, 1 month
I thought medication meant I wasn't really in recovery.
A prescription that became a crisis
D.K.'s opioid use began after a sports injury at 22. By 27, he was using heroin to manage withdrawal and had lost his apartment. 'I was couch-surfing and lying to everyone I knew. I knew I needed help but I was terrified of what that meant — of what people would think of me.'
All narratives are anonymized. Initials, ages, and identifying details have been altered with written consent. Sobriety durations are accurate as of the date of publication.
The Space
A space designed for recovery.
Mountainside NYC Chelsea was designed from the ground up to feel like a place you want to be — not a place you have to be. Every detail communicates safety, warmth, and care.
Where community is built between sessions.
The Recovery Lounge
The heart of the Chelsea hub — a warm, welcoming communal space designed to feel nothing like a clinical facility. Natural light, comfortable seating, and a sense of community.
Location
243 West 18th Street
New York, NY 10011
Accessible from all 5 boroughs · Near 1/C/E trains
Insurance & Financial Navigation
Know your coverage before your first call.
Financial uncertainty is one of the most common reasons people delay seeking treatment. We eliminate that barrier by verifying your insurance benefits within 24 hours — so you can focus on what matters.
Accepted Insurance Plans
Do you have private insurance?
We work with most major commercial insurers. Self-pay options are also available.
Community & Support
Recovery is a community, not a destination.
Mountainside NYC's free support groups and alumni network extend the reach of clinical care into everyday life — because recovery doesn't end when a session does.
26+
Years of operation
10,000+
Lives changed
Free
Community support groups
7 days
Support available weekly
Recovery Support Group
"The opposite of addiction is not sobriety. It is connection."
Recovery Support Group
Tuesdays & Thursdays · 6:00 PM
A peer-led group for individuals in any stage of recovery. Open to the community — no referral or enrollment required. Facilitated by a Mountainside clinician.
Family & Friends Support Group
Mondays · 7:00 PM
For family members, partners, and friends of people struggling with addiction. Learn, share, and find community with others who understand what you're going through.
Alumni Community
Monthly Gatherings + Online
Mountainside alumni form one of the most active recovery communities in New York City. Monthly in-person events, an online community platform, and ongoing peer support.
"The opposite of addiction is not sobriety. It is connection."
Johann Hari · Author, Chasing the Scream
MOUNTAINSIDE LEARNING INSTITUTE
Train. Certify. Transform the field.
MLI reflects Mountainside's commitment to education, professional growth, and thought leadership in addiction treatment, recovery, and behavioral health. Whether you are beginning a career in recovery coaching, deepening clinical expertise, or bringing evidence-based programming to your institution — MLI is your gateway.
"This program and provider are AMAZING. I now have the knowledge and confidence to practice and understand the role of recovery coaching in the rehabilitation field. A goal on my path of recovery is to 'pay it forward' — and with this skill set and training I am now able to do so."
— Jeremy S. · Recovery Coach Academy Graduate
CAREER CHANGERS · PEOPLE IN RECOVERY
Recovery Coach Academy
CCAR 30-Hour Certification Training
A five-day, 30-hour intensive grounded in the Connecticut Community for Addiction Recovery (CCAR) curriculum. Participants learn from active Mountainside recovery coaches using real case studies. Upon completion, graduates are eligible to sit for the CARC (Certified Addiction Recovery Coach) and CRPA (Certified Recovery Peer Advocate) credentials.
WHAT YOU'LL GAIN
- 30 CEU hours toward CARC & CRPA certification
- Practical skills for supporting early sobriety
- Case study methodology from active Mountainside coaches
- Available in-person (Chelsea) and virtual formats
- Cohort-based — next cohort forming now
MLI SCHOLARSHIP PROGRAM
Brighter Future Scholarship
Designed for high school students personally impacted by addiction, the Brighter Future Scholarship invites students to share their experiences, challenge stigma, and help change how we talk about addiction and recovery. Part of MLI's broader commitment to education, awareness, and the next generation of advocates.
ELIGIBILITY: HIGH SCHOOL STUDENTS IMPACTED BY ADDICTION IN THEIR FAMILY OR COMMUNITY
Ready to advance your practice?
Contact MLI directly at [email protected] or call 212 492 8088