Newline Behavioral Solutions (NBS) is a team of professionals who have dedicated their lives to bettering the lives of families of children with special needs. We specialize in autism therapy, though we are skilled at treating all children that have behavioral issues or deficits in the area of socialization, language, and play. Contact our team of professionals today to learn more!

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 an exceptional needs child!

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 is currently enrolled in a Doctoral program for Clinical Psychology and is working toward PsyD licensure with an expected graduation date of 2026.

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.


Meet Some of Our Team!

Ariana de Neveu, MS, BCBA

Clinical Director & BCBA

Ariana de Neveu has been working in the field of ABA for 6 years and is passionate about helping her clients achieve growth that is meaningful to them and their families. She received her Bachelor’s and Master’s degrees in Psychology from Purdue University Global, with a focus in Applied Behavior Analysis. She is currently a doctoral candidate pursuing her Ph.D. from Capella University and uses everything she learns within her work. In her off time, she enjoys spending time with her four children. Ariana has been with Newline for two years and is excited to serve as Clinical Director and BCBA with the company. 

Maggie White, MS, BCBA


Maggie comes to NBS with 7 years of teaching experience and 4 years of experience as a BCBA. She received her masters degree in Applied Behavior Analysis from Aurora University in 2016. During her career, she has had the privilege of working with a wide range of abilities and ages. Maggie and her family are located in the west suburbs and in their spare time they love to travel!

Stacy A. Mueller, M.A., BCBA


Stacy received her bachelor’s degree in psychology and child development from DePaul University. She was introduced to ABA while working at a therapeutic day school for students with autism shortly after that. She was overjoyed to see the vast progress her students were making as a result of the ABA intensive program. She went on to earn her master’s degree in applied behavior analysis with a certificate in autism from Ball State University. Stacy currently has over 15 years of experience working with children and families and over 6 years of experience working with individuals with autism and other developmental disabilities. Her experience spans from working in private homes, group homes, therapeutic day schools, day programs, early childhood centers and community-based settings. Stacy is dedicated to helping equip children and families with the tools necessary to be successful long after services have ended. Her desire to help individuals achieve meaningful outcomes is complemented by her ability to recognize even the smallest achievements as major victories.
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! 

DeAnna Pettis

Lead Behavior Technician & Program Manager

DeAnna comes to Newline with a Bachelor of Arts in Psychology from Benedictine University. DeAnna has so much fun working with children, and she is definitely a natural! Because of her love of working with children, naturally she started a career in ABA. Since 2019, DeAnna has been a rock star behavior tech! DeAnna was born on the South Side of Chicago and is the second eldest of four children. She is a patient, energetic, sweet soul who has a passion for helping children and adolescents thrive! At Newline, she is one of our many amazing Lead Behavior Technicians as well as Program Manager. DeAnna is a huge movie buff so in her off time you can find her watching Netflix!