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Dedicated professionals…

Green Hill Recovery’s diverse leadership team is uniquely prepared to help our clients develop the tools needed to succeed in recovery and in life. We believe academic and career development are vital components of our clients’ recovery journeys, which is we have complemented our strong clinical team with experienced academics, proven leaders, and working professionals. Our team is committed to delivering our clients a well-rounded recovery experience and equipping them with the skills needed to chart their own sober and successful paths.

Tripp Johnson

Chief Executive Officer

Tripp Johnson is the CEO of Green Hill Recovery. Tripp graduated from the United States Military Academy at West Point with a bachelor of science in economics and a minor in systems engineering. At West Point Tripp was a four-year member of the Varsity Tennis Team and winner of the Patriot League Championship. After graduation, he commissioned into the Army as an infantry officer and completed U.S. Army Ranger School, Airborne School, and Air Assault School. Tripp deployed to Southern Afghanistan as an infantry platoon leader in 2012-13 in support of Operation Enduring Freedom. Upon return, he was selected to be an executive officer before finishing his service as a battalion operations officer. Prior to joining Green Hill Recovery, Tripp interned for the North Carolina Department of Justice.


Throughout his experience in college and in the Army, Tripp saw the devastating effects that alcohol and drugs can have on emerging adults. He sympathizes with emerging adults who turn to drugs and alcohol to make sense of this confusing world. With his own life out of balance, Tripp began a daily ashtanga yoga practice. For the past three years he has practiced ashtanga yoga and meditation each day. In 2016, he travelled to India to delve deeper into the eastern science of yoga. Yoga, meditation, and mindfulness practices have helped Tripp reach his fullest potential and live peacefully in this turbulent world. He is dedicated to sharing his knowledge and experiences to help others take control of their lives and reach their fullest potential.


Tripp lives in Raleigh with his dog Gizmo. He is a devoted student of history and the human experience.

Nick Slovak

Executive Director

Nick Slovak is the Executive Director of Green Hill Recovery. Nick holds a BA from the University of Southern Maine in political science and a minor in international relations. Prior to his work with Green Hill Recovery, he served as the Program Coordinator at Foundation House – an extended care sober living facility in Portland, Maine. In that position, Nick developed and implemented academic and vocational modules, alumni programming, and a variety of experiential and adventure-based therapies. Most recently, he worked at the Council on International Educational Exchange (CIEE) – the largest J1 visa sponsor in the United States. At CIEE, Nick coordinated international exchange programs for over 20,000 high school and college students from 50 countries.


Nick is passionate about helping young people successfully transition into emerging adults. He has direct experience with both the perils of addiction and triumphs of sobriety. His own recovery journey has been paramount to his work mentoring emerging adults through early recovery. It has also given him a unique understanding of the challenges faced by newly recovering emerging adults returning to an academic setting. Nick believes in an integrative approach to the recovery process and the importance of a balanced lifestyle. In his role as Executive Director, Nick oversees the administration and integration of the clinical, sober living, academic, experiential, and holistic components of the Green Hill Recovery Program.


Originally from Long Island, NY, Nick comes to Raleigh from Portland, ME. He is an avid adventurer and outdoorsman who enjoys backpacking, rock climbing, kayaking, and snowboarding. He is a Registered Maine Guide, and has led multiple expeditions through the mountains and waters of Maine and New Hampshire. He is a strong proponent of the healing power of the outdoors and is always eager to share this passion. Nick is also an ardent traveler having visited four continents and over 15 countries.

Matthew O'Connor


Clinical Director

Matthew O’Connor, MA, LCAS, ICAADC is the Clinical Director of Green Hill Recovery. Matt is a licensed clinical addiction specialist in North Carolina and a licensed professional counselor in Georgia and Colorado. He holds a Master of Contemplative Counseling Psychology from Naropa University and a Bachelor of Arts in Psychology from Stony Brook University.


Matt has dedicated his professional life to helping adolescents and young adults with co-occurring mental health and substance use disorders. After years of working with this demographic, Matt has developed an approach that is eclectic, person-centered, and holistic. He approaches therapy in a gentle, respectful manner designed to help clients increase their capacity for self-awareness.


Most recently, Matt directed the substance abuse group at Blue Ridge Therapeutic Wilderness. Prior to that, he served as a clinical coordinator at UNC-CH, a therapist at Fellowship Hall, and a mindfulness and recovery coach at Bluefield Recovery Community. In addition to clinical expertise, Matt brings a deep connection to 12-step recovery programs.

Wendy Kimball


Admissions Director

Wendy Kimball, LPC, CEAP, is the Admissions Director of Green Hill Recovery. A North Carolina native, Wendy brings over 15 years of both clinical and program development experience to the team. Wendy worked in an employee assistance setting for 12 years, providing individual and family counseling, substance abuse compliance workshops, and crisis response. She is passionate about working with individuals and families in recovery. Wendy has developed and implemented monitoring and recovery coaching programs while also working to promote evidence-based treatment in residential and inpatient settings.


Wendy relies on a strength-based, collaborative approach when working with clients and families, believing that we all strive to be the best versions of ourselves and have the internal resources to get there. She is trained in EMDR, Harvard Mind Body Relaxation techniques, and is a qualified MBTI administrator.


Wendy graduated from Davidson College with Bachelor of Arts in psychology and received her Master’s in Addiction Counseling from the College of William & Mary. Most recently Wendy served as the Clinical Outreach Director at Four Circles Recovery Center. Outside of work you will find her running on a long flat trail or having another cup of coffee.

Jon Vance

Program Director

Jon Vance is the Program Director of Green Hill Recovery. His experience working with emerging adults has included teaching and counseling at Lake Forest Academy in Illinois and as the Assistant Director of Residential and Judicial Affairs at Vanderbilt University. For the past 21 years, Jon served as the Associate Director of YMCA Camp Sea Gull and Seafarer. He is energized about sharing his experience of long-term sobriety with the Green Hill Recovery community and helping others to build a strong foundation for meaningful and purposeful lives.


Jon graduated with a bachelor of arts in political science from Denison University and earned a master’s degree in divinity from Vanderbilt University. He is an avid traveler having spent time in over two dozen foreign countries and almost all fifty states. When he’s at home in Raleigh, Jon loves a good movie or book. He spends a lot of his free time with family and friends, enjoying good food, coffee and conversation.

Tiara Fennell

Family Therapist

Tiara is a North Carolina native who completed her undergraduate career at UNC- Chapel Hill where she studied psychology and minored in African American studies. After completing her bachelor’s degree, she committed herself to 2 years of service with the Carolina College Advising Corps working as a college counselor to help students from minority, first generation and/or low-income backgrounds get to and through college. Afterwards, she received her master’s degree in Marriage and Family Therapy from Northwestern University. Prior to joining Green Hill Recovery, Tiara provided psychotherapy at The Family Institute at Northwestern through their clinical and community mental health programs. As a clinician, Tiara is drawn to Cognitive Behavioral Therapy, Narrative Therapy and Solution Focused Therapy. Through her studies and past experiences with other clients, Tiara sees addiction and substance abuse as a symptom of relational, emotional and mental health concerns that must be addressed along with the client’s individual recovery.


Tiara’s previous work has centered around working with adolescents with behavioral and emotional diagnosis. She spent her 2 years at Northwestern University working with clients and their families through a unique fusion of her understanding of the educational system and behavioral sciences. Have to learn and understand how clients function within the different systems that they occupy has helped Tiara develop a multi-systemic view to mental health treatment and help guide her clients through the nuances that exist within their dynamics.



In her free time, Tiara enjoys spending time with her family and friends. She also enjoys watching movies and discovering new music.