William Diamantides
Executive Team

William Diamantides’s journey into the substance abuse treatment field began when his wife and sons decided to get sober themselves. With each member of his family now in long-term recovery, William knows the first-hand knowledge of the importance in quality care after placing his own loved ones through treatment. His hope for Southeast Addiction is to provide a safe and healthy opportunity for those struggling to change the outcome of their own lives. William graduated from Northeastern University with a BS in civil engineering and has been a mechanical design engineer at General Electric Aviation for over 38 years.

Garrett Diamantides
Executive Team

With nearly a decade of experience in the substance abuse treatment field, Garrett Diamantides has worked in all aspects of treatment. From a Behavioral Health Technician to an Admissions Coordinator to processing intakes and medical billing, Garrett’s extensive experience has prepared him to play a vital role in the opening of Southeast Addiction Center. Garrett’s journey started just thirteen years ago when he got sober himself. Stating that his long-term success was founded upon the cornerstone of helping others along their journey, both Garrett’s personal and professional experience is able to reach clients in a profound way during the process of treatment.

Dr. Randy Durbin
Medical Director

Dr. Randy Durbin is a licensed physician (Florida, Georgia, Kentucky) with emphasis on outpatient opioid treatment, occupational/preventive medicine/public health, physical medicine/osteopathic manipulation, and outpatient/urgent care medicine. He completed his medical training in Kentucky and Ohio.  He has over 24 years of experience in healthcare, public health and health informatics, and has led diverse Medical Operations Teams. He has published in peer-reviewed public health journals and health blogs, has lectured frequently, and is a subject matter expert in population health management, occupational and preventive medicine, chronic disease epidemiology, applied health/public health training, and health informatics. He is the Treasurer of the Georgia Osteopathic Medical Association, and is an elected member of the American Osteopathic Association’s House of Delegates for a 4-year term.   He lives in Forsyth County and is the proud father of 6 children.

Zoe Johnson, LPC
Clinical Director

Zoe received a Bachelors of Arts in Psychology at Clark-Atlanta University and Masters of Arts in Clinical Mental Health Counseling at Hampton University. Prior to joining Southeast Addiction Center Zoe worked in managed case settings providing utilization and case management, EAP counseling services and non-profit agencies throughout the metro Atlanta area. Zoe also has experience providing evidence-based treatment, to individuals diagnosed with depression, anxiety, personality, psychotic ,substance abuse disorders.  In addition to expertise in Cognitive behavioral therapy and other evidence base modalities Zoe believes in joining with clients in their journey and providing a reliable, nurturing and empathic environment. Zoe is National Certified Counselor and Licensed Professional Counselor in the state of GA.

Forrest Richardson
Director of Operations

Forrest found his way to helping others through his own recovery journey, which began in 2012. He entered the behavioral health field as a recovery residence counselor where he was first exposed to helping families and their loved ones. While he assisted in daily operations, Forrest primarily counseled and supervised residents in early recovery, further fueling his life-long passion for helping others. As Forrest continued his journey, he garnered more skill and exposure to addiction recovery through various duties including clinical outreach, treatment placement, intensive outpatient counseling and counseling operation oversight—all bolstered by professional supervision, training and education. Such education and training include completion of all requirements for the Georgia Certified Addiction Counselor designation, motivational interviewing, recovery residence management, and Break Free Intervention Training.

Having worked with so many families and those struggling with addiction, he identified a strength and strong passion for helping families and addicts begin their journey into recovery. In order to continue to serve and be even more effective for families and addicts, Forrest has joined the Southeast Addiction Center team. This will give him the opportunity to share his experience by overseeing operations as well as staying in contact with clients and their families

Melissa Shipta
Case Manager

Melissa has been in the addiction and recovery field for over one year. Passionate about helping others with the challenges of daily life, she enjoys creating a safe place where others can be comfortable confiding their struggles and accomplishments. Prior to Southeast Addiction Center, Melissa was previously a counselor for Hope Homes Recovery and a former house manager at Agape Recovery. Melissa is currently studying to complete her Certified Addiction Counselor certification and continues to pursue additional education in addiction therapy. In her free time, Melissa enjoys shooting pool, going to the beach, and spending time with her family.

Contact Us and Get Help Now

Southeast Addiction Center exists for one purpose: to help addicts establish sustainable recovery.


3020 Holcomb Bridge Rd
Suite C Norcross GA 30071