The Patterns Team

One of the most rewarding aspects of our field is finding the right staffing fit for our clients. At Patterns, our staff has been strategically developed with our clients in mind. We firmly believe that our team can inspire and support behavior change through evidence-based teaching methods. In addition to their expertise, the members of our Patterns team are personable, engaging, and interested in doing all that they can to meet the needs of our clients.

Some of the Patterns team enjoy a night at the baseball game.

Some of the Patterns team enjoy a night at the baseball game.


Ihab Shahawi - M.A., MBA


President & CEO

Ihab our new President, has been a student and practitioner in the field of ASD since 1983, he has a BA & MA in Psychology and an MBA from UCLA. Having studied and worked with the likes of Dr. Ivar Lovaas and Dr. Gary LaVigna, luminaries and pioneers in the ABA field. In 1996 he founded The SAILS Group, an organization specializing in the treatment of children and adolescents with Autism and other intellectual and developmental disorders who are behaviorally challenging. He enjoys traveling and spending time with family and friends.


Vivian ELShahawi


Financial Director

Vivian received her BS in Biology from the University of Virginia and since has worked at helping those in need, first as a candy striper hospital volunteer while in college and then as a counselor to addicted street children in her hometown of Barranquilla, Colombia. Since 2002 has been the operations director of The SAILS Group, an organization focused on services to children and adults on the Autism Spectrum. We welcome her now to Patterns as our Financial Director. Vivian enjoys time traveling, spending time with her husband, children, and 2 grandchildren.

Clinical leadership

AMBER RAEMER - M.S., BCBA - Orange County, California


Clinical Director

Amber our Clinical Director, has brought a level and expertise that we are very excited to utilize. She trained both Katie and Robbie Fattal (Patterns Founders) for 6 years while they were special education teachers. With more than 22 years in the field, Amber has used her BCBA in various ways such as consulting in Hawaii, Alaska, Las Vegas, and Tennessee, as well as local districts including PYLUSD, Garden Grove, Long Beach, Newport-Mesa, San Luis Obispo, and Oceanside. She worked closely with Clark County school district for 15 years, supporting and working with families and the school district to develop quality ABA programming. Amber has two kids (10 year-old girl, and 8 year-old boy) and spends her time attending her children’s sporting events.

Clinical Administration

Courtney Muehlebach


Program Manager, Orange County, California

Courtney earned a Bachelor’s Degree in Child and Adolescent Development from California State University, Fullerton, in 2008 and has spent the time since working in the behavioral health field and non-profit sector and volunteering with organizations that support individuals with special needs. Her 5 years’ experience as a behavior therapist has given her a unique perspective for a Program Manager that guides the support she provides each day to the staff and families at Patterns. In her spare time, Ms. Muehlebach enjoys spending time with her family and friends and running and bike riding at the beach.


Ariana Lopez


Lead Scheduler

Ariana Lopez has been employed with Patterns since 2015. She was initially hired on as a part time Direct Interventionist and part time Administrative Assistant. She received a Bachelor’s of Arts in Sociology from Cal State Dominguez Hills in May of 2015. In her spare time, Ms. Lopez enjoys spending time with her family, dancing, bowling, and watching the Anaheim Ducks win. Ariana is also Fluent in Spanish.