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 CEO

Matt Newcome CADC II, CPRC


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.

Angela Dainas, M.Ed Angela Dainas

Executive Clinical Director

Angela Dainas, M.Ed, is a Licensed Marriage and Family Therapist (LMFT) and an AAMFT Approved Supervisor-in-Training. Angela received her undergraduate degree in English from Huntingdon College in Montgomery, AL and her Master of Education in Counseling from The University of Montevallo in Montevallo, AL. Angela has been working in the clinical treatment field since 2009, first working with clients recovering from eating disorders and then clients recovering from substance-use disorders. Angela has had the honor to work with clients and families at multiple levels of care including detox, residential, partial hospitalization, intensive outpatient, and outpatient. Angela is passionate about creating an environment where honesty, vulnerability, laughter, and true transformation can occur.

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.

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

Substance Abuse Counselor - Cumming

Tashauna is originally from East Tennessee but relocated to Georgia in 2009. Tashauna originally became interested in the 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.

Michael Shannon, CADC II, CRPT Michael Shannon

Substance Abuse Counselor - Cumming

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.

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

Jamie ManganJamie 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.

Brian Rainwater CAC Brian Rainwater

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
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.

Jennifer YaegerJennifer Yaeger MA, LPC

Family Therapist - Peachtree City

Jennifer holds a B.S. in Human Development and Family Studies from Auburn University, and an 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.

James RoweJames Rowe, DC

Outreach Coordinator

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 have 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 aid clients in reaching their potential and assist them in identifying barriers that prevent them from doing so.​​​​​​

Steve NewcomeSteve Newcome

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 Treatment Center staff to serve the community he loves.

Patton Slay

Patton Slay

Director of Admissions

Patton was born and raised in Hoover, Alabama located right outside of Birmingham. He has been working in the field of substance abuse in some sort of capacity since 2014. He was introduced to recovery through some various personal circumstances in 2013 and fell in love with the field. His first job was in Statesboro GA where he was the Operations Manager of Louie's House, a long term recovery residence for men. After working there for 6 months an opportunity presented itself for him to relocate to Atlanta GA to work for Rivermend Health, it was there that he discovered his passion for the corporate side of the business. He currently lives in Smyrna GA and cannot see himself living anywhere else other than the metro Atlanta area. He is an avid Alabama football fan and enjoys spending time with friends, playing golf, working out.

"To have a job where I get to be of help to someone every day is a truly rewarding experience, and I am truly blessed to be in a position where that is possible."

--- Patton Slay​​