Newline Behavioral Solutions (NBS) was formed to meet the neurodiverse community’s unmet, unique needs and demand for quality Applied Behavior Analysis (ABA) autism therapy services. As a mother to neurodiverse children and ABA provider, our owner/founder, Jennifer Lewis, MS, LPC, BCBA, recognized ABA therapy seekers may not always have access to quality, personalized services and/or had prior negative experiences with previous providers and deserved better! We are highly skilled and trained in delivering high-quality, individualized ABA services with a strong emphasis on providing each client personalized attention.  ABA is considered the most effective autism treatment-assisting in managing behavioral challenges and skill deficits within the areas such as (but not limited to), socialization, communication, sensory, motor, functional daily living, and functional play.

Contact us today to learn more how we can help meet the individual needs of your neurodiverse child(ren) and family!

Meet Some of Our Team!

Jennifer Lewis, Owner & Founder

Newline Behavioral Solutions (NBS) was founded by Jennifer (Jen) Lewis, MS, LPC, BCBA. Jen has dedicated the last decade to working with children and adults of all abilities. Not only does Jen understand the struggles Autism families face through the lens of a clinician; she is also the mother to neurodiverse children!

Jen holds a Master of Science in Counseling with a School Counseling focus degree. After obtaining her master’s degree, Jen continued her schooling and completed coursework at The Chicago School of Professional Psychology to sit for the board certification as a behavior analyst. In addition to the Board Certified Behavior Analyst (BCBA) certification, Jen holds a Professional Educator License with a School Counseling endorsement and a Licensed Professional Counselor (LPC) in the state of Illinois. Jen values education and is passionate about continuing her education so that she stays abreast of new research and most effective ways to serve the autism population.

Jen grew up and continues to live with her family in the west suburbs of Chicago. During her off time, Jen enjoys spending quality time with her 3 children, watching her sons play baseball, her daughter cheerlead, and vacationing in Florida.


Courtney Doornbos, M.Ed., BCBA

Clinical Director & BCBA

Courtney Doornbos has been in the field of ABA for over 15 years. She received her master’s degree in education from DePaul University and later obtained her certification as a Board Certified Behavior Analyst from Florida Institute of Technology. Courtney feels strongly about the importance of compassionate care and has spent much of her career creating training curriculums and systems to enhance the quality of services. She is also passionate about working closely with caregivers and within the community to provide comprehensive treatment to achieve the greatest outcomes possible for our clients. In her free time, Courtney likes to travel, read, workout, and volunteer with community-based organizations.

Maria Avolio, M.Ed, BCBA


Maria graduated from Eastern Illinois University with a Bachelors in Education with an Early Childhood endorsement. She spent 15 years working in schools with children of all ages and abilities. While teaching, Maria attended University of Cincinnati and earned her Masters in Education and certification as a Board Certified Behavior Analysis.  Her passions include helping clients and families achieve happiness, independence, and success in their lives.  In her free time, Maria enjoys spending time with her son, drawing, painting, and attending concerts. 

Melanie Sweeney M.A., BCBA


Melanie graduated with a Bachelor of Science in Psychology from Western Illinois University in 2010. After undergrad, Melanie focused working with neurodiverse children as a 1:1 Specialist. It was through this work experience that led her to learn more about ABA therapy and the positive impact it had on her clients. Throughout her graduate studies at Ball State University, beginning in 2014, she worked as a Behavioral Technician. After earning a Master’s degree in Applied Behavioral Analysis from BSU, she was officially certified as a BCBA in May of 2019.

Melanie thrives in her career as a BCBA because of her dedication and passion for the field and clients! Melanie says watching her clients learn, grow, and thrive right before her eyes is the best part and why she loves being a BCBA so much! 

Carrissa Weakley

Agency Operations Manager

Carrissa Weakley is our Agency Organizations Manager. Carrissa is Newline’s newest member! She brings over 10 years of administrative experience in Office Management. She assists in the development and implementation of NBS policies and procedures, manages and oversees the administration of HR policies, programs and practices within NBS, she maintains accounts payable, receivables, monthly billing, and she works closely with insurance companies. She is our go to for all insurance and HR related questions! Carrissa is currently pursuing a Master of Arts in Clinical Mental Health Counseling. In her spare time, she enjoys exploring the outdoors, catching up on the latest flick, and spending quality time with her kids!