Rehab in Portland Maine
Our Incredible Staff
World-class rehabilitation solutions and individualized recovery plans, from acute care to ongoing outpatient treatment and beyond.
Brian Kiloski
Brian Kiloski
Director of Operations
Brian Kiloski
Brian Kiloski serves as the Director of Operations at Portland Treatment, bringing over six years of hands-on experience in the substance use disorder treatment field. With a strong foundation in business development and clinical operations, Brian has worked across the full continuum of care—including detox, residential, PHP, IOP, and outpatient services—giving him a comprehensive understanding of what it takes to support clients at every stage of recovery.
Brian is the architect behind Portland Treatment’s daily operations, ensuring that the organization runs smoothly while maintaining an unwavering commitment to client-centered care. His leadership is marked by precision, empathy, and a deep dedication to both clients and their families—often going far beyond expectations to create a healing environment rooted in trust and connection.
Outside of work, Brian is an avid golfer who enjoys spending time outdoors and embracing the patience and focus the game demands- values he carries into both his professional and personal life.
Brian’s operational excellence and heart-forward approach are integral to Portland Treatment’s mission. Under his guidance, the team continues to grow as a cohesive, compassionate community where healing is not only possible—but deeply personal.
Steve Garabedian
Steve Garabedian
Partnerships & Family Outreach Director
Steve Garabedian
With over eight years of experience in the social work and behavioral health fields, I have built my career on connecting individuals and families with the care and resources they need to thrive. I began my professional journey working with at-risk youth, where I developed a strong foundation in client engagement, crisis intervention, and community outreach.
I transitioned to another facility, where I served as the Family Liaison, helping families navigate the treatment process and fostering communication between loved ones and clinical teams. From there, I joined another provider as the Family Systems Liaison for Maine, where I supported clients and families through in-home addiction treatment services, emphasizing collaborative care and long-term recovery.
Most recently, I have served as the Director of Business Development for the New England region of a nationwide provider. In this role, I’ve focused on strategic growth, partnership building, and expanding access to high-quality behavioral health services throughout the region.
My work continues to be driven by a passion for helping individuals and families find hope, healing, and sustainable recovery.
Christine McNulty
Christine McNulty
LCSW, LADC, CSS
Christine McNulty
With over 30 years of experience in the behavioral health field, Christine has dedicated her career to working with children, adolescents, and adults impacted by generational and complex trauma, substance use disorder, and mental health challenges. Her deep understanding of systems and client needs allows her to effectively support teams to identify priorities, build capacity, and enhance the quality of care delivered to their communities.
Christine’s Philosophy
Christine believes that behavioral health providers play a vital role in the health and strength of every community. Her work is rooted in the belief that collaboration and community partnerships lead to meaningful, lasting impact.
Christine’s goal is to provide thoughtful, high-quality clinical support that help agencies and clinical teams grow, refine their practices, and achieve the best possible outcomes for those they serve.
Mackenzie Nickerson
Mackenzie Nickerson
LADC, CSS
Mackenzie Nickerson
Mackenzie Anderson, LADC, CCS, serves as the Clinical Supervisor at Portland Treatment, where she leads with compassion, clinical expertise, and a deep commitment to helping individuals and families navigate recovery. She has worked in behavioral health for more than eight years and in substance use treatment for six, building a reputation for her collaborative leadership and client-centered approach.
Mackenzie is a Licensed Alcohol and Drug Counselor and Certified Clinical Supervisor, and she is currently pursuing her master’s in social work at the University of New England, where she also earned her undergraduate degrees in Psychology and Political Science. A former rugby player and coach at UNE, Mackenzie brings the same energy and teamwork mindset to her professional life. When she’s not at work, she enjoys running, spending time with her husband and kids, and hanging out with her dog, Moose-who’s become a familiar face at Portland Treatment.
Nathan Roberts
Nathan Roberts
Executive Director
Nathan Roberts
Nathan Roberts brings over 15 years of dedicated service to the recovery and mental health field, with 12 of those years spent working directly with clients in inpatient care. As Executive Director of Portland Treatment, Nate leads with a rare blend of professional expertise and lived experience, having navigated his own path to sobriety after years of struggle with substance abuse. He found lasting recovery in 2009, a turning point that continues to shape his compassionate, client-centered approach to care.
Nate’s journey is rooted in deep, meaningful experiences that fuel his empathy and commitment to those facing challenges with addiction and mental health. He is especially drawn to individuals navigating complex circumstances, and he believes in meeting people where they are—with dignity, respect, and unwavering support.
Now a family man living a quiet, purposeful life in the great state of Maine, Nate balances his professional leadership with personal passions. He is an avid martial artist, practicing jiu jitsu, and serves as a youth wrestling coach in his local community. He is also pursuing his Bachelor of Social Work at St. Joseph’s College, further deepening his commitment to advocacy and clinical excellence.
Nate takes immense pride in the team at Portland Treatment and the culture they’ve built: one of authenticity, empowerment, and hope.
Experience the Portland Treatment Center Difference
Whether you’re personally seeking help or supporting a loved one, Portland Treatment Center is here for you. We believe recovery is not just possible but achievable for everyone who walks through our doors. Our compassionate and skilled professionals are ready to help you take that first step toward a brighter, healthier future.
Contact us today to learn more about how we can support you on your path to lasting recovery. At Portland Treatment Center, hope begins here.