Our Leadership

PEAK Development Group is led by experienced clinicians who understand the realities of mental health practice. This allows us to provide training that is clear, meaningful, and designed to improve outcomes for both clients and clinicians.

Dr. Arcella is a Licensed Psychologist, Licensed Professional Counselor, Certified School Psychologist, Approved Clinical Supervisor, Consultant, and Master Teacher. She is an expert in Behavior Modification, Learning, Research, Supervision, and Training. During her tenure at the Johns Hopkins University School of Medicine/Kennedy Krieger Institute, Dr. Arcella specialized in parent training and marriage and family therapy. Additionally, Dr. Arcella has worked as an assistant professor and contributing faculty member at several colleges and universities. Dr. Arcella has provided training and presentations for local and national conferences.

With 20+ years of experience, Dr. Arcella has worked with clients in mental health facilities (inpatient and outpatient clinics, university counseling center, community health organizations), businesses, schools, and private practice. In her clinical practice, Dr. Arcella uses cognitive behavioral treatments to promote wellness in individuals, couples, and women. Dr. Arcella also has

experience in career and lifestyle development with millennials. As a consultant, she assists organizations and individuals with issues pertaining to diversity, conflict resolution, emotional intelligence and labor, behavior modification, and strategic planning. Dr. Arcella has served as a consultant for organizations such as the CDC, Spelman College, and DeKalb County Schools.

Through the use of evidenced based treatment, data collection, assessment, and uniquely crafted experiential learning and behavioral activities, Dr. Arcella successfully enhances outcomes for individuals, groups, and businesses.

EDUCATION

• Ph.D. in Psychology with an emphasis in School Psychology
• M.S. in Professional Counseling
• B.A. in Psychology 

Jillian is a Licensed Professional Counselor and Certified Professional Counselor Supervisor in the state of Georgia. She is a native of Kingston, Jamaica and has conducted psycho-educational assessments both privately and publicly through the Regional Assessment Team at the Ministry of

Education in Jamaica as a Licensed Associate School Psychologist. Jillian is an advocate for those with special needs and has an avid interest in improving inclusive school environments and school-based interventions as well as using the creative arts in wellness. She has a passion for working with children, adolescents, young adults, and parents on developing prosocial skills, social-emotional competence, positive coping strategies, and healthy parenting tools. Jillian holds a certificate in Play Therapy and a Diploma in Dance Education which she utilizes to enhance interaction in individual and group sessions. She has held consultancy positions in schools, government agencies, and nonprofit organizations and collaborated on various research projects in the areas of child development and assessment.

Jillian has presented at presented at national and local conferences on topics related to teacher self-efficacy and parent behavioral training. She has developed curriculum and lectured at various universities in a part-time or guest lecturer capacity. She also holds a Telehealth Training Certificate and conducts individual therapy sessions virtually. Most recently, Jillian has

developed content and presented at training workshops for the Masterpiece institute on topics related to Clinical Supervision which is an interest area for her.

EDUCATION

• Ph.D. in Clinical Psychology
• M.A. in School Psychology
• B.S. in Psychology and minor in Communication Studies

Eric is a Master Therapist and Trainer with a focus on cognitive behavioral approaches to mental health, evidence-based practice, positive psychology, and pseudoscientific approaches to mental health. He has worked in psychiatric hospital and private practice settings. His experience includes working with clients experiencing depression and anxiety as well as severe mental health disorders. He has conducted family, group, and individual therapy sessions with geriatric, adolescent, and adult populations. 

He has presented at multiple conferences on topics such as ethical issues in clinical practice, best-practices in supervision, and pseudoscientific approaches to mental health. Eric serves as the publication editor for the Licensed Professional Counseling Association of Georgia (LPCAGA). He is program manager for state required professional counseling supervisor certification and works as licensure consultant for LPCAGA. He has been published and helped develop curriculums for multiple training programs. 

EDUCATION

• M.A. in Clinical Mental Health Counseling 
• Graduate Diploma in Coaching Psychology
• B.S. in Psychology 
  

Robert is a multi-certified Legal-Technology Professional, IT Security Consultant, and Registered Mediator.  He has specialized training in Cybersecurity, Digital Forensics, Data Privacy Compliance, Cyber Law, Artificial Intelligence Law, and Alternative Dispute Resolution & Technology.  During his tenure as Manager of Information Technology Support for the Licensed Professional Counselors Association of Georgia, Robert directed daily technology operations, resolved complex system issues, and supported infrastructure projects that enabled secure, efficient organizational operations.

With more than 25 years of experience, Robert has worked in federal government, professional associations, legal environments, and private consulting.  His professional experience includes technical leadership roles with the Social Security Administration and the U.S. Department of Homeland Security.  He has also served as a legal extern supporting intellectual property and technology law matters, including patent prosecution and appeals before the U.S. Patent Trial and Appeal Board.

As an IT Security Consultant, Robert works with psychologists, licensed professional counselors, mental health organizations, and other professionals on cybersecurity, data privacy, secure technology systems, digital forensics, electronic evidence, and regulatory compliance.  His background in both technology and law provides a comprehensive perspective on the increasingly complex issues surrounding the protection, use, and management of sensitive information.

By integrating technology, cybersecurity, legal analysis, and privacy principles, Robert helps individuals and organizations develop secure, reliable, and effective technology practices.

EDUCATION

• Executive Juris Doctor in Law & Technology
• Master's in Information Systems/Management
• B.S. in Accounting