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GateHouse Treatment

74 Northeastern Blvd Suite 10, Nashua, New Hampshire, 03060
GateHouse Treatment offers highly individualized addiction treatment to men who are experiencing substance abuse issues. A fluid yet essential set of core beliefs animate each and every mode of treatment we deliver. The first is that a profound internal change is necessary for authentic recovery from addiction. The second is that this change must occur in way that’s responsive and respectful to the individual client’s specific needs. Third, we believe that only a holistic approach can affect the necessary change and lead to a fulfilling recovery. Emphasizing responsiveness at all times, our treatment model strives to address the needs of the entire person, not simply those aspects that manifest the symptoms of addiction. Through a combination of traditional and cutting edge methods, GateHouse Treatment helps addicted men build a foundation for a rewarding and long term recovery.

Facility Highlights

  • 3:1 staff to client ratio
  • Cognitive Behavioral Therapy
  • Personalized Meals


  • Client & Family Support Groups

    Group therapy is a vital component of addiction recovery treatment, considered as important and effective (sometimes even more so) than individual therapy. Benefits include reducing isolation and loneliness and providing the opportunity to learn from others in recovery. In the addiction setting, group therapy is run by trained professionals who guide participants toward a shared goal of recovery.
  • Family Program

    Research shows that the odds of successful, sustained recovery from addiction are far higher when family members and loved ones are involved in treatment. Drug and alcohol addiction often have genetic roots, whether related to substance abuse, mental illness or both. Family dynamics also play a role and, often, family members are the first to realize a loved one has developed an addiction. Also, it’s important for family members to understand and embrace the lifestyle changes that are required to sustain recovery.

Facility Settings

  • Residential Neighborhood

Meet the Staff

  • John Sannicandro
    John SannicandroLHMC, Clinical Director
    John is the Clinical Director of the GateHouse Treatment New Hampshire facility. He brings more than two decades’ experience to the work he does with staff and clients at GateHouse. This experience is in virtually every facet of the behavioral health industry. He has worked in both inpatient and partial hospitalization settings, as well as with high school and college students and in private practice. John specializes in dual diagnosis, substance abuse treatment, individual and group therapies, and family counseling. His therapeutic approach encompasses both cognitive and behavioral interventions as well as motivational interviewing. He specializes in combining cognitive behavioral therapy with the 12-Step approach to recovery. Prior to joining the GateHouse Team, John was the first Clinical Director of the Dual Partial Program at Arbour Hospital in Boston, MA. While there, he also headed up their Intensive Outpatient Substance Abuse and Suboxone programs. Currently, John is a licensed mental health counselor in both Massachusetts and New Hampshire.
  • Dr. Clifton Frederick Lord
    Dr. Clifton Frederick LordMD, Medical Director
    Dr. Lord brings almost forty years of diverse experience to his role as Medical Director at GateHouse Treatment, much of it specializing in Addiction Medicine. He graduated from the Vermont College of Medicine in 1978 and is affiliated with a number of excellent hospitals. These include the Alice Peck Day Memorial Hospital, the Mt. Ascutney Hosptial, and the Springfield Hospital. Dr. Lord also cooperates with other physicians in medical groups such as Connecticut Valley Recovery Services, Inc.

Financial Details

  • Yes

Treatment Center Links

Rehabs 360 Guide


Located in Nashua, N. H., GateHouse Treatment provides outpatient treatment coupled with sober housing to adults struggling with substance use disorder. Programs typically run for three to six months. GateHouse is one of just 10 treatment facilities in New Hampshire (14.9 percent of all treatment centers in the state) to offer long-term programming that lasts longer than 30 days.


Treatment is individualized and two levels of outpatient treatment are offered. The partial hospitalization program (PHP) is the most intensive level of care and involves six hours of group therapy a day. GateHouse is one of just four treatment facilities in the state to offer this level of care.

The intensive outpatient program (IOP), which is a treatment level available in 22.4 percent of New Hampshire treatment facilities offers similar programming at a less intensive level.

Both programs include one-on-one counseling, group therapy, family counseling, and medication management, if needed. Clients also participate in 12-step meetings and relapse prevention training. GateHouse is also among the 19.4 percent of New Hampshire treatment facilities to offer specialized groups for clients who have experienced trauma.


The treatment team includes master's-level therapists, case managers, nurses, and counselors.


After their daily treatment sessions, residents return to gender-specific sober living homes. Pictures on the facility's website indicate shared bedrooms and homey living spaces.


While Rehabs.com has not yet received any reviews from this facility’s alumni, the facility earned an average rating of 4.8 out of five stars based on 26 Google reviews[1] and a 4.9 out of five-star rating based on the opinions of of 52 people. Across both sites, former clients praised the rehab for its comprehensive treatment, caring staff, and comfortable living facilities. "Greatest treatment center I've been to. Staff cares deeply and shows lots of love. Gatehouse saved and changed my life," Justin wrote in a representative review on Google.


According to the facility's website, the treatment center accepts most major insurance plans and has other financing options available.

[1] GoogleReviews

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