Meet Our Experts
president and ceo
Mr. Walker LPC,NCC, CPCS
Mr. Walker is a clinical psychotherapist, philanthropist, and community advocate whose work has been defined by a steadfast commitment to expanding access to equitable mental health care. With more than two decades of experience in community mental health across the Atlanta metropolitan area, he has dedicated his career to serving individuals and families who are often overlooked by traditional systems of care. His clinical expertise includes clinical diagnosis, psychoeducation, and the treatment of anxiety-related disorders, with a strong emphasis on culturally responsive and community-based interventions.
Mr. Walker is the Founder, President, and CEO of Atlanta Counseling & Diagnostics Center (ACADC), an organization built on the principle that quality mental health services should be accessible to all, regardless of socioeconomic status. Under his leadership, ACADC has grown into a training and service hub, where he not only provides direct clinical care but also mentors and supervises graduate-level clinicians, helping to shape the next generation of mental health professionals.
Recognizing the systemic barriers that limit access to care for underserved populations, Mr. Walker founded ACADC CARES, a nonprofit organization focused on bridging the gap between need and access. Through this initiative, he works to ensure that individuals and families facing financial hardship have the opportunity to receive comprehensive mental health services, including assessment, counseling, and ongoing support.
Throughout his career, Mr. Walker has demonstrated a strong commitment to crisis intervention and advanced clinical care. His experience includes clinical practice in Level 5 hospitals and acute care settings, where he provided critical support to individuals experiencing suicidal ideation and complex trauma. This work deepened his expertise in crisis stabilization, safety planning, and diagnostic accuracy, particularly when serving high-risk populations.
In addition to his clinical and leadership roles, Mr. Walker is a dedicated educator and mentor to graduate and associate-level clinicians. He maintains partnerships with multiple universities to provide practicum and internship opportunities, reinforcing his belief that meaningful change in mental health care begins with strong training and intentional mentorship. His approach emphasizes incremental progress, resilience, and empowerment—principles he applies both in his work with clients and in developing future clinicians.
Driven by a vision to eliminate disparities in mental health care, Mr. Walker continues to advocate for innovative, community-centered solutions. His long-term goal is to establish accessible, 24-hour mental health clinics in underserved communities, offering comprehensive services that include counseling, diagnosis, psychiatric evaluation, and medication management. Through his leadership, clinical expertise, and unwavering dedication, he is actively working to transform the landscape of mental health care—one individual, one family, and one community.
associate Therapist
S. Huebner LAPC
Mr. Huebner is a Licensed Associate Professional Counselor (LAPC) who completed his graduate studies at Mercer University. Originally from Barrow County and a graduate of Apalachee High School, his local roots deeply inform his dedication to assisting young people through transformative life stages. This intimate connection to the community provides him with a specialized perspective on the distinct hurdles and prospects that today’s youth encounter.
His clinical focus is centered on guiding adolescents of all genders through the complexities of maturity and significant personal choices. He excels in aiding students as they transition to higher education, navigate academic pressures, or explore vocational and military opportunities. By fostering a grounded and nurturing atmosphere, Mr. Huebner meticulously helps his clients cultivate self-assurance, develop vital coping mechanisms, and establish clear visions for their personal futures.
Away from his practice, he prioritizes his well-being by remaining active and social. Whether he is fishing, sharing a meal with family, or engaging in a basketball game, these connections keep him balanced. Above all, Sean is committed to acting with genuine kindness and moral clarity, functioning as a reliable mentor and a positive force within the community he serves.
clinical intern
Mr. Valencia is pursuing a Master's Degree in Clinical Mental Health Counseling at Liberty University and is currently an intern at Atlanta Counseling and Diagnostic Center. Prior to embarking on his career in therapy, he served as a Registered Behavior Technician, where he gained valuable experience supporting the development of children and their families.
He is bilingual in Spanish/English and deeply committed to guiding individuals through significant life transitions and complex emotional hurdles. By utilizing a holistic and integrative methodology, Mr. Valencia creates a welcoming and empathetic environment designed to ensure clients feel heard and fully supported as they uncover their innate strengths.
He operates on the core belief that even in the face of adversity, profound healing and personal evolution remain within reach.
In his personal time, he finds joy in bonding with his Yorkie-Shih Tzu and exploring the outdoors. He also appreciates discovering new culinary experiences, which helps him stay grounded and mindful of life's simple pleasures.He looks forward to partnering with you on your path toward wellness.
Bilingual Spanish/English
C. Valencia MA
intake coordinatior
Miss. Soriano is pursuing a degree in Psychology and serves as our Intake Coordinator, welcoming clients at the start of their care. She completes intake assessments during the first visit and helps clients understand the next steps in their treatment process.
She also brings extensive experience in mental health administration, supporting the clinic with scheduling, coordination, and communication. A strong advocate for parents, she is fully bilingual in Spanish and English and provides clients with information and referrals when medication management is needed. She is a key connection with our community partners, arranging referrals for psychological evaluations with testing and serving as an interpreter to bridge communication gaps.
With her warm presence and strong relationships with families, she maintains a close connection with parents and is a dedicated advocate for the community.
In her free time, she enjoys singing and traveling to discover new and amazing places around the world.
Bilingual Spanish/English
A. Soriano
Our compassionate CBT professionals offer specialized evidence-based therapy for families and individuals in Lawrenceville. We empower our clients to overcome obstacles and build lasting mental wellness through professional diagnostic skill.