8135 Painter Ave, Suite 201
Whittier, CA 90602
Phone: (562) 698-6600
Fax: (562) 698-6613
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


Counties that We Have
Current Availability:

Achieve Beyond provides autism services in these counties in the state of California:

Achieve Beyond Pediatric Therapy and Autism Services provides pediatric therapy to help children reach their fullest potential. Therapy, behavioral, and family support services are provided throughout the Greater Los Angeles area. We also provide initial screenings, parent or school consultations, comprehensive evaluations and assessments.

Our professional and licensed staff is committed to serving special needs children with physical and developmental disabilities/delays and/or children who might need some extra assistance. Services are provided in home, school, or community environments, as well as in our clinic located in Whittier, CA. We accept many major insurance providers, and have private pay options available as well. If you are a provider, we have many exciting career opportunities in our California office.

Pediatric Services Offered:

Meet Our Clinical Directors


Shain Davis, OTD, OTR/L, California Clinical Director - Doctor Shain Davis has worked in pediatrics since 2007. After receiving his Bachelor’s Degree in Health Promotion and Disease Prevention studies at the University of Southern California (USC), he began working as a pediatric developmental specialist, serving at risk and/or disabled infants in their homes. Shain returned to USC in 2010 and received his Master’s and Doctoral degrees in Occupational Science. While at USC, Shain received specialized pediatric training including immersive clinic and school based internships. Shain was also selected to be a part of the Emerging Leaders Development Program, a program run by the American Occupational Therapy Association, to promote growth, leadership and innovation within the field of occupational therapy. Since coming to Achieve Beyond in 2013, Shain has practiced as an occupational therapist and also oversees the related service aspects of the California clinic. As the head of a great team of occupational, and speech therapists, Shain promotes effective and meaningful service delivery and ensures that all Achieve Beyond family needs are met. A blend of evidence-based practice and clinical experience is what drive’s the clinic’s client-centered approach.


Maritza Reyes-Trevino, M.A., BCBA, ABA Clinical Director - Maritza Reyes-Trevino is a Board Certified Behavior Analysist who has been working in the field of Applied Behavior Analysis since 2009. She earned a Bachelor’s Degree in Liberal Studies from California State University, Fullerton and a Master’s Degree in Arts and Teaching: Emphasis in Applied Behavior Analysis from National University. Maritza began her career in the field working as a 1:1 Community Integration Specialist, 1:1 Classroom Behavioral Support Aide, and In Home Direct Interventionist in which she implemented behavior intervention plans and provided support for parents and teachers. Throughout the years Maritza has developed individualized client programs targeting socially significant behaviors in home as well as in the community, parent and staff trainings. Through a supervisory role Maritza collaborated with both Regional Centers and insurance companies on client progress and programming. Since joining Achieve Beyond in 2017, Maritza has been responsible for conducting assessments and re-assessments as well as developing social skills programming for clients in home and in a clinic setting where she oversees a growing clinical team. Maritza has developed a special interest in provider and parent trainings where she finds great pride in continuing to support individuals and families alike.

Areas we serve in California:

East Los Angeles
South Central
West Los Angeles
San Gabriel
Pomona region

We are in network with, but not limited to, Anthem Blue Cross, Aetna, Beacon/ASG, Bright Health/PIH, Blue Shield California, Cigna, Easter Seals, Kaiser, Magellan, Mail Handlers Benefits, Tricare and United Heathcare.

If interested in Speech and/or Occupational Therapy:

Refer a Child

If interested in ABA therapy through your health insurance provider:

Refer for ABA

Department of Developmental Services webpage:
Department of Developmental Services phone number: (916) 654-1690