we believe in science. we believe in data. we believe in your child.
No two people have exactly the same skill set or learning style. That’s why we create an individual behavior and skill acquisition plan for every client. Our team of Behavior Analysts and Speech/Language Pathologists brings a combined 75+ years of experience working with different populations and challenges and improving the quality of lives for people and families affected by learning disabilities and exceptionalities such as Autism.
Ashlie Walker, MS, BCBA, LBA
President / Director of School Consulting
Birmingham Metro Area, Central Alabama
Ashlie Grill Walker, MS, BCBA is a Board Certified Behavior Analyst and has been providing ABA Therapy and working in the field of Applied Behavior Analysis since 2005. Ashlie earned BA in Psychology from Auburn University in 2008 and MS in Psychology with a Specialty in Applied Behavior Analysis from Florida State University in 2010. Ashlie specializes in Functional Behavior Assessments and competency-based training for school staff on behavior analytic teaching methodologies and problem behavior reduction for students with different learning abilities.
Courtney Hamilton, MS, CCC-SLP
Director of Speech and Language Services
Courtney B. Hamilton, M.S., CCC-SLP, is a licensed and certified speech-language pathologist with Milestones Behavior Group, Inc. She graduated from The University of Alabama in 2008, and she received her Master of Science degree for Communication Disorders in Speech-Language Pathology at The University of Montevallo, where she graduated with highest honors. Since then she has worked in a variety of settings including preschools, public school, pediatric private therapy practice, diagnostic centers, and hospitals. Courtney has experience working with children of all ages with communication delays and disorders. She is passionate about providing individualized care for all clients, while making therapy fun and enjoyable.
Hannah LaFollette MS, BCBA
Oxford, Gadsden, Anniston
Hannah has been working with the population since 2010. Attended Jacksonville State University where she graduated with honors with a Bachelor's degree in Psychology in the summer of 2011. She began graduate school at Jacksonville State in the fall of 2011. She graduated with her Master of Science degree in Psychology in the spring of 2013. Hannah became a Board Certified Behavior Analyst in November of 2015. She has a passion for ABA and demonstrating the ethical and scientific principles it has to offer.
Nathan Benson, MS, BCBA
Nathan Benson is a Board Certified Behavior Analyst. He earned his undergraduate degree from The University of Mississippi and completed his Master's degree in Applied Behavior Analysis from Auburn University. Nathan has worked with individuals ranging in age from 2 to 55 years old and across developmental disabilities.
Elizabeth Walsh, MS, BCBA
Elizabeth Walsh has been a Board Certified Behavior Analyst since February 2014. Elizabeth earned a Bachelors of Science in Psychology from Jacksonville State University in 2008 and a Masters of Science in Psychology specializing in Applied Behavior Analysis from Jacksonville State University in 2012. She has been providing ABA therapy and working in the field of Applied Behavior Analysis for 6 years on both in-home and school-based cases from ages 2-21. Elizabeth specializes in treating maladaptive behaviors including elopement, toileting, and using the Verbal Behavior Approach to teach language to children with Autism and other developmental disabilities. She works to provide individualized training for teachers, paraprofessionals, and parents as well as general training in the implementation of ABA principles and strategies in the classroom and at home.
Jodie Maharrey, MS, BCBA
Jodie Maharrey is a native of LaGrange, GA. She earned her Bachelor's of Science in Psychology Degree from Savannah State University in Savannah, GA and a Master's of Psychology with a specialty in ABA from Florida State University in 2011. Her experience varies from Early Intervention for Autism to treating Adults with ID's using ABA.
Tam Dahlgren, MS, BCBA
Tam attained her Master of Education degree from The University of Iowa and has background in Special Education. She received her BCBA certification in 2009. Tam has been practicing Behavior Analysis in a variety of settings including: Clinic programs, ABA classrooms, In-home sessions, and School Consultations. Tam has experience in grant writing, program development, training and supervision. She is excited to continue implementing principles of behavior analysis and working with families in new ways such as the Telehealth Program at Milestones.
Ashley Riley, BS, BCaBA
Ashley is a Board Certified Assistant Behavior Analyst. She graduated from Jacksonville State University with a bachelor's in Psychology and a minor in Sociology. She is pursuing her master's degree in ABA and working towards her BCBA certification. Ashley's concentration is in early intervention, and she has a deep passion for helping children by using the techniques and application of behavior analysis.
Shelby Dunagan, MS, BCaBA
Shelby Dunagan, MS, BCaBA is a Board Certified Assistant Behavior Analyst. Shelby
has been working with children with various intellectual disabilities and behavioral disabilities since 2014 after she completed her Neuroscience degree at University of Alabama at Birmingham. Shelby graduated from Jacksonville State University earning her Masters in Applied Behavior Analysis in 2017. Shelby is devoted to using the principles of ABA to improve the lives of children and their families.
Helen Mushalla, MA
Helen started her experience with ABA as a senior in college during an internship and fell in love with the field. After graduating with a major in Human Services and minors in Spanish and Psychology from Purdue University in 2014, Helen began working as an ABA therapist. Two years into the field Helen decided to pursue further education and earned her Masters in Applied Behavior Analysis in December of 2017. She is currently preparing to sit for the Boards to become a BCBA.
Ethan Curvin, RBT
Ethan is a current senior at Birmingham-Southern College from Jacksonville, Alabama. He is a psychology major looking to further his education in ABA after graduation from Birmingham-Southern in May. College is where he became interested in working with children and it has been a wonderful experience for him. He thoroughly enjoys meeting new people and making new friends, and his experiences with ABA work have blessed him with opportunities to do just that!
Joy Wimberly, MA, RBT
Joy Wimberly, MA, RBT is originally from Birmingham, Alabama. She attended the University of North Alabama and graduated Summa Cum Laude with a B.S. in psychology. She recently graduated with her M.A. in school psychology from the University of Southern Mississippi. There she taught undergrad applied behavior analysis as a part of her assistantship. She is currently receiving supervision to become a Board Certified Behavior Analyst and is completing her BACB coursework at Florida Institute of Technology. Joy has worked with a variety of ages and diagnoses. Joy has a passion for the dissemination of ABA. As a hobby, Joy likes to
apply ABA to fitness and nutrition.
Hillary Owens, BS, RBT
Hillary Bumpus Owens earned her undergraduate degree from Jacksonville State University
(JSU) in April 2017. She graduated with her B.S. in psychology, Magna Cum Laude with special
honors in psychology. Hillary worked in JSU’s Center for Behavioral Studies (CBS) from 2015-
2017 providing early intervention services and in the Learning 2 Mastery (L2M) after-school
program where she implemented principles of behavior analysis, precision teaching and direct
instruction with school-aged children. Hillary is currently a graduate student at JSU working
towards her M.S. in psychology (applied behavior analysis). Hillary obtained her registered
behavior technician (RBT) credentials in April 2017.
Maddie Smith, BS, RBT
Auburn and surrounding areas (Columbus and Phenix City)
Maddie Smith a recent graduate from Auburn University where she obtained her Bachelors in Rehabilitation and Disability Studies. She is now working towards her Masters in Behavior Analysis at Simmons College. Maddie recently became certified as an RBT but has worked previously at a private school for children with autism where she worked one on one with children and teens with severe maladaptive behaviors. Once she obtains her BCBA certification she hopes to specialize in severe behavior. Maddie is loving her position as an RBT and is very excited to continue her work in this profession and improve the lives of those she has the privilege of working with.
Karen Adwell, BS
Karen received her BA in Psychology from Auburn University. She is very excited to take this step in her career! Karen always enjoyed Child Development and Learning courses, and has been heavily involved in childcare of all ages. She thoroughly enjoys working with children learning more about them every day, and is so happy she gets to work with such wonderful kids and their families! Karen hopes she can use her knowledge of ABA Therapy to help make a positive difference in the lives of children and their loved ones.
Aimee Bals, BS, RBT
Aimee is so excited to be working for Milestones and using her psychology degree from Mississippi College. She is honored to work with the families she gets to work with through Milestones and believes in the power of ABA.
COURTNEY HAMILTON, MS, CCC-SLP
Courtney has experience working with children of all ages with communication delays and disorders. She is passionate about providing individualized care for all clients, while making therapy fun and enjoyable.
MEET THE TEAM
Heather Williams, MS, BCBA, LBA
Clinical Director - Vestavia
Heather Williams is a 2002 graduate from UAB with her B.S. in Psychology and a 2004 graduate from Jacksonville State University with her M.S. in Applied Psychology. Heather received her BCBA certification in December, 2008. Heather has been providing ABA services to children and their families since her undergraduate education to present. She is currently serving as the Clinical Director at the Milestones Clinic in Vestavia Hills, however you may see her from time to
time in local schools.
Lauren Elliott, MS, BCBA, LBA
Clinical Director - Springville
Lauren Elliott is a Board Certified Behavior Analyst and has been providing ABA Therapy and working in the field of Applied Behavior Analysis since 2009. She earned a Bachelor of Arts in Psychology with a minor in Spanish from Auburn University in 2008 and a Master of Science in Applied Behavior Analysis with a focus in Developmental Disabilities in 2010 under Dr. James E. Carr, BCBA-D at Auburn University. Lauren has specialized in Autism and Intellectual Disabilities, as well as training and educating students, teachers and families about ABA and has experience with all age ranges. She has worked as a behavior analyst in private & public schools, residentially for children, adolescents, and adults with varying disabilities and mental illnesses, as well as provided in-home consultation to children and their families.
William Walton, MS, BCBA
Regional Director - Georgia
William Walton is a Board Certified Behavior Analyst and has been providing ABA Therapy and working in the field of Applied Behavior Analysis since 2011. He earned a Bachelor of Arts in Education from Pennsylvania State University in 2010, completed 5 years of clinical experience in an Autism clinic centered on behavior analytic research, which led to him earning his Master of Science in Applied Behavior Analysis with a focus in Autism Spectrum Disorder from the University North Dakota. William has a significant amount of experience in behavior analytic research, coordinated clinical trials for several licensed psychologists in the field of Behavior analysis and has been published in peer reviewed journals such as The Analysis of Verbal Behavior. He has specialized in providing community based caregiver training in a variety of modalities, including using innovative strategies such as telehealth.
Courtney Stewart, MS, BCBA
Courtney Cagle Stewart is a Board Certified Behavior Analyst and graduate of Auburn University's Master's program in ABA. She has worked a BCBA for 4 years in settings such as DHR and the AL Dept. Of Rehabilitation. She has provided ABA Therapy to children, adolescents, and adults with developmental disabilities.
Martha Loukotka, MS, BCBA
Metro Birmingham, West Jefferson County
Martha Loukotka, MS, BCBA has been practicing as a behavior analyst since 2003. She obtained her Master’s degree in Behavioral Psychology in 1998 at Eastern Michigan University. Her specialty is working with individuals diagnosed on the Autism spectrum with severe maladaptive behavior. She many years of experience providing ABA Therapy working with teens and adults in helping them lead a more functional and active lives.
Seth Martin, MS, BCBA, LBA
Oxford, Gadsden, Anniston
Seth attended Jacksonville State University and graduated magna cum laude with a bachelor's of science in psychology in 2010 as well as summa cum laude with a master's of science in psychology in 2013. He has addressed challenging behavior using skill assessment and behavior support planning using the principles of behavior analysis. His work has included work with populations from ages 4 to 19. He has serviced individuals with autism spectrum disorder as well as typically developing individuals. He has also served clients in clinic, home, and school settings and primarily has a history training school staff to implement behavior reduction and skill acquisition programs. Seth is quite grateful for the opportunity to implement applied behavior analysis in an ethical, effective manner.
Kelly Miller, MS, BCBA
St. Clair County
Kelly holds a Master's in Special Education from the University of Alabama and completed her Graduate Coursework in ABA at The University of North Texas. Before her career in Behavior Analysis, Kelly was a special education teacher for almost 2 decades. She has worked with students of all ages and exceptionalities
Chiara Brown, MS, BCBA
Chiara Brown, M.S., B.C.B.A. has been providing applied behavior analysis services to
individuals with a variety of disabilities since 2008. Chiara received her Master’s in
Psychology with an emphasis in Applied Behavior Analysis (ABA) from Florida State
University in 2011 and is a Board Certified Behavior Analyst (B.C.B.A.). She specializes
in providing direct consultation services to school systems, conducting trainings on
various topics related to the field of Applied Behavior Analysis, conducting skill
assessments to formulate verbal behavior programming, conducting functional behavior
assessments, writing behavior intervention plans for students, and teaching social skills.
Hannah Chandlee, BA, BCaBA, LaBA
Birmingham Metro Area
Hannah Chandlee, BA, BCaBA, LABA is a Board Certified Assistant Behavior Analyst. She is also a Licensed Assistant Behavior Analyst in the state of Alabama. Hannah
has been working with children with Autism and various intellectual disabilities in the field of Applied Behavior Analysis since 2010. Hannah graduated summa cum laude from Samford University earning a degree in Family Studies in 2010 and completed the ABA Assistant Graduate Certificate Program at Florida Institute of Technology in 2016. Hannah has a passion for helping others, and she is dedicated
to improving the lives of children and their families through the use of the ethical and evidence-based practice of ABA.
Alicia Howard, MEd., RBT
Alicia Howard graduated with honors from Athens State University with a Bachelors degree in Religion and a minor in Sociology in 2009. She then graduated with honors from Jacksonville State University with a Master’s degree in Collaborative/Special Education K-6 in 2013. She completed her course work for ABA through the University of Cincinnati in 2017. Prior to becoming a behavior analyst, Alicia was a special education teacher in a small group setting classroom for students with ASD and also served students with a wide range of abilities and diagnosis (intellectual disabilities, emotionally disturbed, ADHD, and ODD.) Alicia is currently completing clinical hours and preparing to become a Board-Certified Behavior Analyst. Alicia has a passion for children and is dedicated to improving the quality of life for individuals by ethically using research based ABA principles and strategies.
Devorah Story, BA, RBT
In 2010, Devorah graduated with a Bachelors in Psychology and a minor in speech from Georgia State University. During her studies, she began working with children as a YMCA counselor. Shortly after graduation, she accepted a job at the Marcus Autism Center working in the Language and Learning Clinic with children who are diagnosed with Autism or other developmental disorders. A huge part of Devorah's skill set focused on helping kids acquire and/or increase their speech. After spending quite some time helping this population of kids develop language, she transitioned to the Severe Behavior Clinic, where she gained experience implementing interventions which focused more on reducing challenging behaviors. Devorah has gained a wide range of skills within the ABA field and over the years has found her niche in working with this population.
Kia Tyson, MS, RBT
Kia Tyson is a RBT currently receiving supervision to become a Board Certified Behavior Analyst. Kia earned her Master's degree in Clinical Psychology from Alabama A&M University in May 2016. She also completed her BCBA certification coursework at UMASS Lowell in December 2017. Kia has worked in the field for 3 1/2 years. She has worked with a variety of age groups and diagnoses in clinical, group home, rehabilitation, and school settings. Kia has a passion for serving individuals in need, their family, and the community. In the future, Kia plans to pursue a Doctorate in Clinical Psychology. She hopes to use her knowledge and experience to be a well rounded source to service all of her clients needs.
Julie Jarnigan, BA, RBT
Julie is a Registered Behavior Technician. She graduated from Jacksonville State University with a bachelor's in Elementary Education. She is excited to be part of an amazing company that is making such a difference in children's lives. She has a passion for helping children by using the techniques she learned with the application of Behavior Analysis.
Haylee Gann, RBT
Haylee is extremely passionate about ABA! She is about to pursue a degree in psychology to further her knowledge and become a BCaBA.