Green Mountain Treatment Center in Effingham, NH
Green Mountain Treatment Center is the flagship dual diagnosis residential rehab facility of Granite Recovery Centers. Located on 77 acres in New Hampshire’s White Mountains, it provides a structured setting for men and women age 18 and older seeking recovery from drug and alcohol addiction.
Primary Residential Drug and Alcohol Rehab Program in Effingham, NH
Green Mountain, New Hampshire, offers a full continuum of care, including on-site drug and alcohol detox. After medical detox, individuals transition to inpatient/residential treatment, a Partial Hospitalization Program (PHP), or an Intensive Outpatient Program (IOP).
Treatment at Granite’s Green Mountain Center is designed for individuals with a primary diagnosis of substance use disorder and includes integrated care for co-occurring mental health conditions, like depression and anxiety, to support holistic recovery.
Where to Find Granite Recovery Centers: Green Mountain Treatment Center
What to Expect at Our Rehabilitation Center
Activities in Nature
Our campus spans over 70 acres in the White Mountains, offering space to breathe, reflect, and enjoy outdoor activities, including sports, games, and nature hikes.
Including Loved Ones in Care
We involve families and loved ones in individual and couples therapy, and we offer a weekly family support group that also extends to family members of alumni.
Support at Every Stage
You can expect one-on-one interactions with your recovery team and an individualized treatment plan, including one-on-one and group therapy, medication management, and medication-assisted treatment (MAT).
Medical Oversight by an Expert Clinical Team
Individuals are monitored 24/7 by licensed nurses under the supervision of our Medical Director. Our team includes medical and psychiatric Advanced Practice Registered Nurses (APRNs) who oversee safe drug and alcohol detox/rehab.
Multiple Pathways to Recovery
We offer multiple evidence-based pathways to recovery, including SMART Recovery, so you can choose the approach that aligns with your needs, values, and long-term goals.
LGBTQ+ Affirming Support
We provide LGBTQ+ affirming support in a respectful, welcoming environment. Our individualized care recognizes identity, relationships, and lived experience as essential parts of healing and recovery.
View the 2025 Green Mountain Outcomes Report
See real 2025 outcomes data from Green Mountain, including patient complexity at admission, average length of stay, and the clinical model driving lasting recovery.
Rehab Program Services for Drug and Alcohol Addiction
At Green Mountain Treatment Center, we offer a wide range of drug and alcohol rehab programs that include evidence-based therapies and specialized services for veterans, young adults, and dual diagnoses.
Services and Treatment
- Drug and Alcohol Detox Programs
- Residential/Inpatient Treatment
- Partial Hospitalization Program (PHP)
- Intensive Outpatient Program (IOP)
- Dual Diagnosis Treatment
- Sober Living Homes
- Telehealth Services
Specialized Programs
Science-Backed Therapies
Holistic Addiction Therapies
Inclusive and Ongoing Support
- Alumni Community
- Master Level/Licensed Clinician
- LGBTQ+ Friendly
Compassionate Help Is Just a Phone Call Away
If you would like to visit one of our New England drug and alcohol rehab centers, please contact us at Granite Recovery Centers. Our experts will work with you to find a high-quality treatment option that meets your needs. We strive to provide holistic, evidence-based care, helping you achieve and maintain long-term sobriety.
What Our Alumni Have to Say
Green Mountain Treatment Center Effingham, NH Google Reviews:
Green Mountain is truly a one of a kind treatment facility. The staff genuinely care about each and every resident on a personal level; teaching the 12 steps from lived experience. In my personal opinion there is no better treatment center in New England to have a spiritual awakening than at Green Mt. The people are…Read More
Green Mountain is truly a one of a kind treatment facility. The staff genuinely care about each and every resident on a personal level; teaching the 12 steps from lived experience. In my personal opinion there is no better treatment center in New England to have a spiritual awakening than at Green Mt. The people are great, the food is great, the curriculum is engaging and the views are breathtaking. If you or someone you know is struggling this is the place to make the change.Read Less
-Joshua Fraser
Amadeus saved my life, he is a great friend of mine and when I was struggling he drove 2 1/2 hours to pick me up and get me to treatment in a snow/ice storm. The man goes above and beyond for his own recovery, green mtn clients, his co-workers and the people in his life in general. As the alumni coordinator he ensures…Read More
Amadeus saved my life, he is a great friend of mine and when I was struggling he drove 2 1/2 hours to pick me up and get me to treatment in a snow/ice storm. The man goes above and beyond for his own recovery, green mtn clients, his co-workers and the people in his life in general. As the alumni coordinator he ensures that green mtn graduates and alumni have fun events to look forward to after they leave treatment. Can’t say enough about him and how important he was in helping me through one of the worst times of my life. Green mtn treatment center as an organization is the best place for recovery and drug and alcohol treatment in New England in my opinion. Also, huge shoutout to Kendra Darling & Matt Polovick (silver fox) who have also been detrimental in my recovery and supporting me as well. All the 12 step coordinators are dedicated and compassionate individuals that I’ve watched changed peoples lives on the mtn, including mine, can’t recommend the establishment enough.Thank you,Mitch Read Less
-Mitch C.
Where to start? Green mountain has a revolutionary approach to substance and alcohol rehabilitation. They have options many other rehabs do not. Mostly they offer love and compassion as well as community, which are not very common in the rehab industry. This place is a godsend, I wouldn’t be where I am today without it. I owe everything to this facility. Thank you to the staff and clients for saving my mind, body, and spirit. 🤍🤍🤍
-Nikki S.
The green mountain exceeded all my expectations when it comes to treatment, i went in hopeless with zero self confidence. This program allowed me to get back on my feet and teach me the spiritual tools to return back to the real world with the confidence I needed. No one said this was easy but its worth it, if you’re feeling like you may need help with addiction waste no more time and call Green Mountain!
-Lisa N.
Meet Our Licensed Team

Matt O’Neill
CEO

Tricia Bates, RN, DON
Director of Nursing

Erica Miller
Director of Operations

Michelle Peare, MSW, MLADC
Clinical Director

Keegan Rawlins, CFI, CRC
Client Care Manager

Robert Arnold
Director of 12-Step

Jermol Mojica, CFI
Director of Case Management
FAQs
What Therapies Does Green Mountain Treatment Center Use?
Green Mountain Treatment Center in Effingham, New Hampshire, offers a range of therapy options.
- Talk therapies: cognitive-behavioral therapy (CBT), dialectical behavior therapy (DBT), and Seeking Safety for trauma.
- Medication support: including medication-assisted treatment (MAT) when suitable.
- Group and family work: individual counseling, group therapy, family therapy, SMART Recovery, and 12-step groups.
- Creative therapies: like art and music. Each plan is personalized. The team also treats mental health conditions at the same time as addiction.
What Is Green Mountain Treatment Center Known For?
Green Mountain Treatment Center is Granite Recovery Centers’ flagship dual-diagnosis residential rehab.
It sits on 77 acres in New Hampshire’s White Mountains. Treating adults 18 and older for drug and alcohol addiction, care spans the full continuum, from on-site medical detox to residential treatment, a partial hospitalization program (PHP), and an intensive outpatient program (IOP).
Patients can choose more than one route to recovery, including immersion in the 12-step and SMART Recovery processes, ensuring the best path to success. Families can join through therapy and a weekly support group.
What Happens When You Go to Rehab at Green Mountain Treatment Center?
Rehab at Green Mountain Treatment Center follows straightforward steps:
- You call admissions, which is open 24/7, and confirm your insurance.
- We’ll build a treatment plan with you and finish a clinical intake when you arrive. And if needed, you’ll start with medical detox. Licensed nurses monitor you around the clock, under a Medical Director.
- After detox, most people move into residential treatment. Days include individual and group therapy, recovery education, and medication support when needed.
- Many people then step down to a partial hospitalization program (PHP) or intensive outpatient program (IOP). During those, you can live at home or in sober housing.
What Is the Shortest Time You Can Stay in Rehab at Green Mountain Treatment Center?
There is no set minimum, because the right length depends on the person.
The National Institute on Drug Abuse (NIDA) says residential or outpatient treatment shorter than 90 days has limited effectiveness for most people, and detox alone is only the first stage.
At Green Mountain Treatment Center, the average stay across all levels of care was 52.3 days in 2025.
Granite Recovery Centers’ inpatient programs run 30 to 90 days, and short stays often last three to six weeks. A clinical assessment develops your plan. Many people can then step down to PHP or IOP care.
Does Green Mountain Treatment Center Treat Dual Diagnosis?
Yes. Green Mountain Treatment Center is Granite Recovery Centers’ flagship dual diagnosis residential facility. It treats addiction and mental health conditions like depression and anxiety together, in one plan.
The program is built for people whose main diagnosis is a substance use disorder. Care often includes CBT, DBT, trauma therapy such as Seeking Safety, medication support, and relapse prevention.
Psychiatric advanced practice registered nurses (APRNs) help oversee treatment. NIDA’s treatment principles say that when addiction and mental disorders occur together, both should be treated. In 2025, 71% of patients here had a dual diagnosis.
How Many Times Do People Relapse Before Quitting Successfully?
It varies; some people relapse once, some more than once, and some never do.
According to the National Institute on Drug Abuse (NIDA), about 40% to 60% of people treated for substance use disorders relapse at some point. That is similar to other long-term health conditions, like diabetes, hypertension, and asthma.
Relapse doesn’t mean treatment failed. It usually indicates the plan needs to be adapted. Recovery usually takes more than one round of treatment.
Where Is Green Mountain Treatment Center Located?
Green Mountain Treatment Center is at 244 High Watch Road, Effingham, NH 03882, in New Hampshire’s White Mountains.
Granite Recovery Centers serves Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. To ask about admission or check your insurance, call us now. Admissions is confidential and available 24/7.
What State Has the Best Drug Rehab Facilities?
Quality doesn’t necessarily change from state to state. A better test is the facility itself. Look at its licensing and accreditation, whether it fits your needs, and whether it shares genuine outcomes.
Green Mountain Treatment Center published 2025 results and compared them with national data from the National Association of Addiction Treatment Providers (NAATP).
Its completion rate was 82.8%, versus 52.0% nationally. Just 6.0% of patients left against medical advice, versus 21.0% nationally.
Average depression scores (PHQ-9) fell by 57.4% from admission to discharge, versus 41.7% nationally. Most patients arrived with complex needs.











