Meet Our Staff

Addiction Therapists Serving Georgia

Our entire staff operates like a healthy, happy family, nobody is left out – the atmosphere is positive, relaxed and employees are encouraged to succeed. These are the people who will be there for you and/or your loved ones if you receive treatment at our addiction rehabilitation centers in Cumming and Peachtree City in Georgia.


Matt Newcome CADC II, CPRC

Executive Vice President

Matt Newcome is the Executive Vice President of The Carter Treatment Center, with six years of combined clinical and business development experience in the behavioral health field. He is also a certified alcohol and drug counselor, as well as a certified recovery coach and an interventionist.

Matt’s personal experiences led him into the helping field where he discovered a passion for watching individuals enter into a life of recovery.

Marilyn MaddoxMarilyn Maddox, CAC I, GCADC I

Program Director - Cumming

Marilyn is a seasoned Addiction Counselor with 20 years of experience, having earned her certification through the Georgia Addiction Counselors Association (GACA) and the Alcohol and Drug Abuse Certification Board of Georgia (ADACBGA). Marilyn has served as the Chair of the Training and Education Committee on the GACA Board of Directors, the Standards Chair for the Georgia Association of Recovery Residences (GARR) and she is a Past President of GARR as well. For 15 years, she owned and operated a long-term substance abuse treatment center with two locations, licensed by the Georgia Department of Community Health. Marilyn has experience in working with Medically Assisted Treatment modalities, Parole and Probation, Judges and Attorneys, Accountability Courts and has served as a consultant for programs in the Treatment Field. She is currently pursuing a specialty degree in Addiction Studies at the University of South Dakota.

James RoweJames Rowe, DC

Life Coach/Director of Marketing/Business Development

Dr. James Rowe has served the chiropractic needs of various communities throughout the metropolitan Atlanta area since June 2000. Through years of chiropractic experience gained from working with multiple demographics, Dr. Rowe recognized a direct correlation between a patient’s physical and emotional health in regards to their overall healing process. He observed that a patient’s physical health was often impeded and in some cases prevented due to the patient’s mental condition. As a result, Dr. Rowe has resolved that optimal health is achievable only by addressing a patient’s physical and emotional health simultaneously.

Dr. Rowe also served as a juvenile substance abuse counselor and volunteered with a community service organization in which he saw the devastating effects of substance abuse in men and women of all ages and ethnicities. This experience has given him a significant understanding of various issues affecting those who struggle with addictive behaviors and has allowed him unique insight into the effective treatment needed to assist sufferers in their overall recovery process.

Dr. Rowe’s skill and experience has culminated into him becoming a life coach. He plans to operate in this role as well as Director of Marketing/Business Development as part of the team at The Carter Treatment Center where he will aide clients in reaching their potential and assist them in identifying barriers that prevent them from doing so.

Jo AbneyJo Cheezem Abney, LPC, CAADC

Clinical Director - Cumming

Jo Cheezem Abney, LPC, CAADC is the Family Therapist at The Carter Treatment Center and has an established private practice where she conducts individual, group, couples and family therapy. Her experience includes facilitating Intensive Outpatient treatment programs, aftercare recovery groups, Family and Friends in Recovery meetings, establishing a peer-support SMART recovery program, working with Drug and DUI Accountability Court programs, and facilitating anger management and domestic violence groups. She has been on the Georgia Registry as a recognized DUI evaluator and treatment provider and a Georgia-certified Family Violence Intervention Program facilitator. Her interests include addiction, anxiety, depression, existential exploration, couples and family therapy, and grief work. She is a Past President of the Licensed Professional Counselors Association of Georgia and serves on the boards of Alcohol & Drug Abuse Certification Board of GA, Recovery Community Foundation of Forsyth and the Georgia School of Addiction Studies.

Michael ShannonMichael Shannon, CADC II, CRPT


Michael has been in the addiction field for eight years and brings an abundance of compassion and dedication to those who are seeking to recover from the disease of addiction. He began his career as the house manager of a recovery residence. He then worked at the Ridgeview Institute with clients suffering from addiction, psychosis, and addiction disorders. Mike also worked for a number of years as a counselor at Hope Homes, Atlanta. Mike recently attained his Georgia CARES certification, and he has completed certification in Relapse Prevention Therapy. His goals include enrollment in an MSW program, to run with the Bulls in Pamplona, Spain; and to swim with the Great White Sharks in South Africa.

Tashauna CastleTashauna Castle, MS, NCC, CADC-T, APC

Program Director - Peachtree City

Tashauna is originally from East Tennessee but relocated to Georgia in 2009. Tashauna originally became interested in mental health industry to help children and adolescents who have survived traumatic experiences. In following her desire to help others, Tashauna completed her Bachelor’s degree in Psychology at the University of Phoenix and is completing the last semester of her Master’s degree in Clinical Mental Health Counseling with a focus in children and adolescents at Lock Haven University. She has completed the national counselor examination, and she is a certified alcohol and drug counselor trainee.

Although she is new to the industry, Tashauna brings her energy, compassion, inquisitive nature, and desire to help others to The Carter Treatment Center. Tashauna has had the privilege of working with clients from adolescence to late adulthood struggling with addictions.

“Failure will never overtake me if my determination to succeed is strong enough” by Og Mandino.

Brian ArchipleyBrian Archipley, MAS, CADC-T, APC

Brian, a native Michigander, has been in the Atlanta area for the past three years. His wife and children love being in Georgia and feel inspired and blessed by the beauty of the area and the people who live here. Before coming on board with The Carter Treatment Center he was involved as a Global Sales and Marketing Director for a large Medical Products Company. He has a Master of Arts in Spirituality and is an ordained minister, with a background in pastoral counseling, color and music therapy, and energetic healing practices. He is currently enrolled in a Master’s program through Hazelden Betty Ford’s Graduate School of Addiction studies and plans on becoming a fully certified LPC specializing in drug and alcohol abuse recovery therapy.

Laurie NewcombLaurie Newcomb MA, LAPC, NCC, CTTP

Trauma Therapist

Laurie Newcomb is a Georgia native. She is a graduate of the University of Georgia with a B.A. in psychology. She attained her M.A. from Argosy University in Clinical Mental Health. Laurie is a Certified Clinical Trauma Professional. She is also a member of The International Association of Trauma Professionals and The Association of Traumatic Stress Specialists.

Laurie is passionate about helping individuals who have undergone traumatic experiences in their life. She began working on this area of therapy during her graduate program and she realized early on that substance abuse and trauma are often co-occurring and addressing both can help the client live a fuller life.

Laurie is a mother to two teenagers, two dogs, and two cats. She is currently the Trauma therapist at Carter Treatment Center and is in private practice with KWR, Inc. & Associates.

“Your worst enemy cannot harm you as much as your own unguarded thoughts.”-Buddha

Misti PattonMisti Patton

Admission Coordinator

Misti's experience includes Certified Medical Assisting as well as Certified Phlebotomy with more than 20 years of experience in the medical field.

Misti is currently working on her Certified Alcohol and Drug Counselor (CADC-1) through the Alcohol and Drug Abuse Certification Board of Georgia (ADACBGA).

Her passion for substance abuse counseling stems from personal experience and family addition and a natural ability to connect with others. Misti looks forward to using her education and firsthand experiences to help people suffering with substance abuse disorders.

Misti lives in Georgia with her 17-year-old daughter and her 10-year-old dog Lillie.

"The best time to plant a tree is 20 years ago, the second-best time is now." - Chinese Proverb

Jennifer YaegerJennifer Yaeger MA, LPC

Family Therapist - Peachtree City

Jennifer holds a B.S. in Human Development and Family Studies from Auburn University, and a M.A. in Marriage and Family Therapy from Reformed Theological Seminary in Jackson, Mississippi. She has worked in all levels of care providing inpatient, intensive outpatient, outpatient, and teletherapy in a variety of settings including: hospitals, community mental health centers, and private practices.

She has developed programs to treat depression, anxiety, trauma resolution, relational conflicts and difficulties, and substance abuse. She has presented workshops on a variety of topics for other professionals.

She is trained in Eye Movement Desensitization Reprocessing (EMDR), Trauma-Informed Yoga, Trauma-Informed Expressive Arts Therapy, and is a Certified Tobacco Cessation Specialist.

undefinedBrian Rainwater CAC

Substance Abuse Counselor - Peachtree City

Born and raised in Georgia, Brian has been in the substance abuse treatment field since 2004, maintaining his certification as an addiction counselor since 2009. He currently serves on the Board of Directors for GACA.

Brian joined the Carter Treatment Team in 2018 excited to be involved with such a committed group of people with the unifying idea that each client has specific, personal needs that must be addressed while addressing the primary issue presented, substance abuse.

As a Son, Brother, Husband, Father and Grandfather, Brian appreciates daily, the benefits living by recovery principals can provide trying daily to pass these principals on to others seeking help with substance abuse issues.

“We are never as recovered as we think we are”. – Sam J.


Robyn Goodart

Substance Abuse Counselor - Peachtree City

Robyn, A Chicago native, has lived in the Peachtree City area for over five years. Since completing her degree in Psychology, Robyn has gone on to pursue her masters in Addiction Counseling. She has a passion for helping people who struggle with substance abuse, as well as the family members of those afflicted. In her free time, she enjoys fun activities with her two daughters and family pets.

Valerie Daniel, CADC-T


Valerie has made Forsyth County her home for over 15 years. Valerie became interested in the helping industry in 2009 when she formed a non-profit organization to help single mothers by providing access to community support and resources. Valerie completed her bachelor’s degree in Human Services Delivery & Administration at the University of North Georgia. During her undergrad program, Valerie was drawn to the counseling aspect of her class work and decided to further her education. She will graduate in May of 2019 with her master’s degree in Clinical Mental Health Counseling. Valerie has already passed the National Counselor Examination and is also a Certified Alcohol and Drug Counselor Trainee.

While Valerie is relatively new to the counseling aspect of the addiction field, she’s not new to the personal toll addiction takes on addict as well as the loved ones of people in active addiction. She has a passion for helping struggling addicts and their family members as they navigate the many roads to recovery. Valerie draws on her education and life experiences to help those in recovery to manage their addiction so they can have the life they want and deserve.

Steve Newcomeundefined

Outreach Coordinator - Peachtree City

Peachtree City and its surrounding communities have been an important part of Steve’s life since 1990 when he and his wife Mary decided that this was the place they would raise their family. Twenty-nine years later they, along with their Golden Retriever Sam and cat Gidget, still feel blessed to call PTC home.

Steve began his career as a Registered Nurse working primarily in the surgical and emergency room areas. When opportunities developed in the business world Steve went on to build a successful career in corporate banking and business management. Here, he developed a solid foundation in client services and relationship management skills.

Steve brings to our team a sincere desire to connect people with the skills needed to live a healthy and rewarding life. He has seen first-hand the devastating effects of addiction on those who suffer from it and on their loved ones. He has seen, too, that healing and wellness can be attained with proper treatment. In his position as a Community Outreach Coordinator, Steve is excited to join the Carter Center Treatment staff to serve the community he loves.

undefinedJamie Mangan

Office Manager - Cumming

Jamie recently joined The Carter Treatment Center in January 2019. Her previous experience included working in various administrative positions. After living several years in Forsyth County, she, her daughters and their dogs Charlie and Oscar recently moved to Ball Ground. She enjoys spending time with her family.