Our Team

Ed McDonough, Chief Operating Officer

As Chief Operating Officer of GateHouse Treatment of New Hampshire, Ed ensures that all staff members remain focused on applying the company’s core principles of compassion, service, and integrity to the early recovery process of their clients. He also oversees the day-to-day operations of GateHouse of New Hampshire, including staff and facility management at the New Hampshire location.

Ed earned his compassionate perspective while walking the difficult road to recovery himself. In 2011, his own life was miraculously saved when he became an alumnus of GateHouse Treatment and launched his personal mission to help others find hope, meaning, and authentic recovery. He carried this passion into a clinical position at the Tewksbury State Hospital Detox, where he honed his skills for helping find sobriety and a more fulfilling life.

It was also while working at the Tewksbury Detox that Ed began to collaborate with his closest friend and GateHouse founder Nathan Irvine to reach even more people who were suffering in the grips of addiction. Together, Ed and Nathan have combined the guidance of the 12-Step Approach with proven clinical methods to establish Gatehouse as one of the leaders in substance abuse treatment.

Christopher Foster, Executive Director

In his role as Executive Director of GateHouse Treatment, Christopher oversees operations, development, and staff management. Active in long term recovery himself, Christopher has worked for more than six years in the treatment industry. He graduated Magna Cum Laude at Springfield College in Massachusetts and is currently working toward his Master’s Degree. Prior to joining the GateHouse Treatment team, Christopher worked as an Operations Director and a National Business Development Representative.

Over the course of his extensive travels, Christopher has discovered exactly what works when trying to help those who are struggling with drugs and alcohol. By combining his personal experience with a wide ranging knowledge of traditional and progressive treatments, he has been able to implement treatment modalities and services that are proven to be effective. His enthusiasm for his work shines through in the obvious excitement he feels when clients succeed. “It’s the best feeling when a family member of a past client reaches out to thank me for helping their loved one.” he says. “It gives me the drive to keep helping those who need me the most.”

Doris Carroll, LMHC, MCAP, CPP, ICRC-PS, ICRC-ADC, Clinical Director of Florida

Doris brings extensive training and the gift of true compassion to her duties as Clinical Director of the West Palm Beach, FL GateHouse Treatment Facility. She holds a Master’s Degree in Counseling Psychology and a Bachelor of Arts in Ministry, but her credentials don’t stop there. Doris is also a Licensed Mental Health Counselor and has earned multiple certifications in addiction prevention and treatment. Last but not least, she is a certified EMDR therapist as well, a form of treatment she uses with clients to undo the damage of past trauma and reduce the intense urges to use that play such a huge part in addiction.

Doris’s impressive education is not merely theoretical; she uses it on a daily basis to provide leadership for her team and help clients find permanent relief. Not surprisingly, Doris has also been a community leader who has established charitable agencies and worked as a volunteer for food ministries.

John Sannicandro, LHMC, Clinical Director of New Hampshire

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.

Larry Mabry, LCSW, Primary Therapist

Larry brings a diverse background to the work he does with clients at GateHouse. A Licensed Clinical Social Worker who is also working towards certification in the treatment of gambling addiction, Larry has worked in numerous treatment centers throughout South Florida. He was the Employee Assistant Program therapist for the St. Louis Cardinals organization from 2003-2012. During his time with the Cardinals, he worked with both Major League baseball players and prospects in the Cardinals’ farm system. Another career highlight was in November 2012, when his insights were quoted in the National Association of Social Work News.

Larry’s personal experiences also serve him well in his capacities as a therapist. He has been sober for over 28 years and has worked in the field of addiction treatment for over 25 of them. He specializes in Psychodrama and Gestalt therapeutic modes. Larry is a therapist who genuinely cares about his clients. He forms a kinship with them in order to help them stop the insanity of drug and alcohol addiction without replacing it with another unhealthy obsession.

Liz Azzariti, LCSW, Primary Therapist

Liz is the Primary Therapist at GateHouse Treatment and has over 30 years of experience in the fields of addictions and behavioral health, including work with children, adults, and their families. The primary objective of Liz’s daily work is to provide exceptional, evidence-based clinical care to a diverse population.

Using a humanistic perspective and an emphasis on trauma to create an integrated treatment approach, Liz applies a variety of therapeutic modes to help clients heal and begin the recovery process. This includes a mix of Cognitive-Behavioral Therapy (CBT), Motivational Interviewing (MI), and Dialectical Behavioral Therapy (DBT). She also utilizes the tools of Psychoanalytic treatments, including Attachment Theory.

Liz’s past experience includes work in Acute Treatment Services (ATS/Detox) and Residential Treatment for substance abuse. She also assisted children and families at a busy urban children’s behavioral health center. Liz has a Master’s Degree in Social Work from Wheelock College and is a licensed clinical social worker in Massachusetts and is working toward licensing in New Hampshire.

Nicole Piechowski, National Director of Marketing

Nicole brings dedication, enthusiasm, and the benefit of her personal experience to her role as the National Director of Marketing for GateHouse Treatment. Her mission is help others find the same freedom that she gained through her own personal recovery. She has extensive experience in the addiction and mental health fields and has made helping families achieve recovery her ruling passion.

Originally from Barnegat, New Jersey, Nicole has a strong background in business development, an area where she has used her interpersonal and leadership skills to teach and help others. In 2010, she played a key role in coordinating strategic branding and outreach events to cultivate client relationships. Then, in March 2014, she pursued her passion for helping people in the recovery community as part of the Community Outreach Team for Lumiere Detox Center.

Community service has long been a big part of Nicole’s life. In 2005, she worked with the Red Cross in Baton Rouge, Louisiana to give disaster relief aid after Hurricane Katrina. She also has done service work for Toys for Tots, the Make a Wish Foundation, as well as Oceans of Love and Relay for Life.

Mark Macaluso, Clinical Outreach Coordinator

Mark joined the GateHouse Treatment Outreach Team in June 2017 and brings three years of experience in addictions treatment to the work he does with us. Mark grew up as the oldest of five children in New Jersey, where he was heavily involved in sports and volunteer work. Upon his admission to Fordham University, addiction began to ravage both he and his family’s life. In 2013, Mark lost his sister to cancer and took advantage of an opportunity he had in South Florida to put his life back together.

It was here that he discovered his undying passion for helping others and realized that it was a calling. Mark’s career boasts positions at some of the industry’s most reputable organizations. Beginning in the Alumni Department of Ambrosia Treatment Centers, his organizational skills and charisma gave him the opportunity to build an Alumni Program at Royal Life Centers. After that, he shared his experience, strength, and hope to guide struggling addicts at the Mandala Healing center. Exciting new life events brought Mark to the New England area, where his tireless efforts make him a strong asset to our growing team.

Jake Foster, Clinical Outreach Coordinator

Originally from Saugus, Massachusetts, Jake brings three years of experience in the field of substance abuse treatment to the work he does at GateHouse. Before joining the GateHouse team, he worked for18 months as an Outreach Coordinator at Pax Campus and as an Admissions Coordinator for almost a year at Destination Hope. Having gotten sober when he was 18 years old, Jake takes great pride in showing others that there is a way out of addiction at such a young age. His role as a clinical outreach coordinator includes raising community awareness and offering resources to those who need help. Along with his outgoing personality, Jake brings drive, commitment, and passion to everything he does at GateHouse.

Michael Beyer, Alumni Coordinator

As Alumni Coordinator, Michael ensures the patients and family members receive support by maintaining communication. Michael meets with patients before they leave treatment to ensure their transition after treatment goes smoothly. He assists with setting up social and volunteer events for the alumni.

Michael worked in sober homes and comes from a background of numerous management positions. His personal experience with addiction has brought him knowledge of what patients and their family’s needs are when they transition from GateHouse back to family living. Since getting sober in 2012, Michael found that helping others recover from addiction is his passion.

Sean Mattos, Program Director

Sean serves as the Program Director at GateHouse Treatment, where his role is to ensure that clients are participating actively in their recovery and being held accountable for following the rules and policies that are in place to help them succeed.

Sean has worked in the field of substance abuse treatment for almost five years. He uses his own experience and knowledge of recovery to work with clients. He helps clients to develop life skills and feels that this is an important component of authentic recovery. Sean works with clients on an individual basis and supervises the behavioral tech staff as well. He is also active in the recovery community and donates much of his time to volunteer work.

Mitch Pierce, Lead Case Manager

A person in long term recovery and a GateHouse alumni, Mitch focuses on helping clients find success in sobriety. He is a graduate of the University of New Hampshire, a Certified Recovery Coach, and is finishing up his training as a Certified Recovery Support Worker (CRSW). Mitch uses his education for the greater good by connecting clients to local resources and working with them to develop meaningful life goals.

Mitch’s work is a core part of the GateHouse Treatment curriculum. He aids clients in resume building and creating personal budgets, as well as helping them develop time management and other life skills that directly correlate with sobriety and becoming a functioning member of society.

Mitch has extensive training in the areas of ethical boundaries, peer recovery support, suicide prevention, and HIV/AIDS awareness.  In his free time, he is active in the local 12-Step community and takes great joy in being a horticulture enthusiast.

Matt Lee, Case Manager

Another alumni of GateHouse Treatment, Matt brings his long term recovery experience to bear on the work he does as client Case Manager. Having spent many years as a Certified Medical Assistant (CMT) and a Certified Hemo-Dialysis Technician (CHT), he treat clients with extraordinary amounts of compassion and caring.

Using both his personal experience and the skills he learned and perfected as a Recovery Specialist (RS) at the Tewskbury State Hospital Detox, Matt uses a unique skill set to serve the needs of GateHouse clients. Matt’s talent and training make him a key contributor to the unique life skills program we use to help clients walk through early recovery.

Dr Clifton Frederick Lord, 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.

Summer Silverman, Nurse Practitioner, Psychiatric Nurse

Summer Gary Silverman is a Board Certified Family Nurse Practitioner. He started his health career as an EMT and then taught nursing to college students. In addition to his wide-ranging clinical and classroom experience, Summer also has an outstanding academic background. His degrees include a BA in Music from Berklee College and a BSN in Nursing from Fitchburg State University, as well as a Master’s in both Nursing and as a Nurse Practitioner.

With his unique blend of clinical and classroom training, Summer is able to attend to the most fundamental needs of his patients in a highly responsive way. He believes that healing requires a holistic approach, one that treats mind, body, and spirit simultaneously. Summer is the chief of the Sealy Nation and serves on the New Hampshire Disaster Medical Team.

Amanda Sadat, PMHNP-BC, Nurse Practitioner, Psychiatric Nurse

Amanda uses an integrative approach to medication management. She learned this approach while obtaining Master’s Degrees from Lesley University and Massachusetts General Hospital Institute of Health Professions. Her experience treating patients of all ages in both inpatient and outpatient settings helps her modulate this approach to a client’s specific needs. Amanda has also worked in emergency room and acute stabilization settings, where she witnessed resilience, positive change, and recovery amid some of life’s worst obstacles.

Amanda views her work as a team effort, with both client and caregiver working together toward wellness. She has a unique willingness to meet clients exactly where they are and helping them progress steadily toward their own life goals. Amanda’s areas of expertise include eating disorders, chronic illness, depression, PTSD, and other types of anxiety disorders. With her background as both a therapist and a nurse practitioner, she offers clients both behavioral and medical interventions to help them achieve a recovery that’s both healthy and personally satisfying.

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