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Founders & Administration Sacramento Ontario International San Gabriel Valley Valencia Central Valley/Stockton Bay Area

Sacramento Ontario International San Gabriel Valley Valencia Central Valley/Stockton Bay Area

San Gabriel Valley and Inland Empire Staff

The Behavior Analysts and Teachers on ABC's staff all have University degrees and academic training in Applied Behavior Analysis. Additionally, ABC has a comprehensive Continuing Education Program and an extensive supervision structure which includes PhD’s, licensed Psychologists as well as Board Certified Behavior Analysts.

Clinical Administrator

empty Rick Gutierrez, M.S./B.C.B.A
Clinical Administrator
Southern California

Rick Gutierrez is a Board Certified Behavior Analyst with over 10 years of experience in the treatment of individuals diagnosed on the Autism Spectrum. Mr. Gutierrez holds a Bachelors degree in Psychology from the University of California, Riverside and a Masters of Science degree in Behavior Analysis from California State University, Los Angeles. Mr. Gutierrez has served as Program Manager, Regional Director, and currently as the Clinical Administrator of Southern California services for Applied Behavior Consultants, Inc. As Clinical Administrator Mr. Gutierrez coordinates ABC services with multiple regional centers and school districts and is responsible for overall staff clinical support throughout the region. Mr. Gutierrez has given numerous workshops on ABA throughout the United States, Europe, Africa, and Asia. He is level II certified in Teaching through Acoustical Guidance (TAG). He specializes in Verbal Behavior Theory and has published work in The Analysis of Verbal Behavior. Mr. Gutierrez is a member of the Association for Behavior Analysis and the California Association for Behavior Analysis.

Program Managers

empty Nicole Justine Tisdale, M.S./B.C.B.A
Program Manager
San Gabriel Valley and Inland Empire

Nicole Justine Tisdale earned a Bachelor of Arts Degree in Psychology from BIOLA University in 1996. While pursuing a BA degree, Miss. Tisdale worked as a Program Specialist, tutoring children from 2 to 15 years of age diagnosed with Autism Spectrum Disorder (ASD) for the following ten years. Miss Tisdale received her Master of Science degree in Applied Behavior Analysis in 2008. In 2005 she became the Program Manager for Applied Behavior Consultants, Inc. (ABC). Her duties include managing Senior Behavior Consultants and Behavior Consultants who supervise in-home, school based services, community, and parent training programs for children diagnosed with ASD and other developmental disabilities. She trains staff on assessments, lesson development and implementation. She has conducted various workshops for school district staff in the San Gabriel Valley and Inland Empire areas of Southern California, on Applied Behavior Analysis. Miss Tisdale has also traveled to South Africa conducting workshops on special education as well as general education concerning reduction of behavior problems in the classroom and the teaching of appropriate skill deficits.

empty Stephanie M. Sheridan, B.S.
Associate Program Manager
San Gabriel Valley and Inland Empire

Stephanie M. Sheridan is a Board Certified Assistant Behavior Analyst and acquired her Bachelor of Science degree in Psychology at Western Michigan University. Ms. Sheridan has been a member of the Association for Behavior Analysis International since 2004, the American Psychological Association since 2005, and the Association of Professional Behavior Analysts since 2009. Ms. Sheridan works in the capacity of an Associate Program Manager with Applied Behavior Consultants, Inc. Ms. Sheridan is currently pursuing a Master of Science in Applied Behavior Analysis at St. Cloud State University under the supervision of John T. Rapp, PhD, BCBA. Since September 2008 she has been a research assistant under the supervision of Dr. John T. Rapp. The project is titled, “Altering Motivational Variables to Treat Stereotyped Behaviors” (with Greg Swanson). In January 2010 Ms. Sheridan will begin her thesis study in fulfillment of the M.S. degree, titled “The Effects of Abolishing and Establishing Operations on Stereotypy and Academic Training.” She has acquired experience within the field of Behavior Analysis as a behavior consultant, senior behavior consultant, research assistant, undergraduate therapist, behavior therapist, and as a behavior technician. The populations that she has worked with include children, adolescents, and adults with developmental disabilities and autism spectrum disorders.

Senior Behavior Consultants

empty Angelica Rendon, B.A./B.S.
Senior Behavior Consultant
San Gabriel Valley and Inland Empire

Angelica Rendon began working with children with developmental and learning disabilities in 2002 as an academic tutor while attending the University of California, Los Angeles. Upon graduating in 2005 with a bachelor’s of arts in Spanish and Linguistics and a bachelor’s of science in Psychobiology, she acquired a position as an in–home tutor at Applied Behavior Consultants, Inc., in 2005. She worked in the home environment, but also assisted in the Infant and Toddler Center and the ABC School, located in Duarte, California. In 2005, she was promoted to Associate Behavior Consultant and became a full-time consultant in November 2005. She worked as supervisor of in-home programs, and also provided ABA services in school districts, held workshops, including behavior trainings, and provided training for parents in the basic principles of applied behavior analysis. She later became a senior behavior consultant in February 2007 where she took on the responsibilities of supervising other consultants. She is also a member of the professional organization, Applied Behavior Analysis, International.

empty Heather Barker, M.A.
Senior Behavior Consultant
San Gabriel Valley and Inland Empire

Heather Barker has been working with children with Autism since 2003. She began working in at an elementary school as an educational assistant for 5 years. I n 2008, Heather graduated with her Bachelor's in Psychology from California State University of San Bernardino. In August 2008, she started working for Applied Behavior Consultants as an in-home tutor. While working as a tutor, Heather continued her education by taking courses in Applied Behavior Analysis. In May 2009 Mrs. Barker was promoted to Behavior Consultant in which she supervised various tutors, as well as in-home, school, and parent programs. In February 2010, Mrs. Barker received her Master's in Teaching with a specialization in Applied Behavior Analysis. Currently, Mrs. Barker is a Senior Behavior Consultant and will be taking the exam this year to become a Board Certified Behavior Analyst.

empty Brian Mahorney, M.S./B.C.B.A.
Senior Behavior Consultant
San Gabriel Valley and Inland Empire

Brian Mahorney is a Board Certified Behavior Analyst and acquired his Master of Science degree in Counseling and Applied Behavior Analysis at California State University Los Angeles. Mr. Mahorney has over 10 years of experience working with individuals with Autism and other developmental disorders. He began his career working as a direct interventionist and has held various positions including Behavior Consultant, Senior Consultant and Program Manager for a previous agency. Mr. Mahorney is passionate about working with parents, as he feels they are an integral part of a child's growth. He has given numerous workshops in English and Spanish for a wide range of audiences in the United States, Taiwan, and Portugal. Mr. Mahorney is a current member of the Association for Behavior Analysis International and the California Association for Behavior Analysis.

empty Heather Estep, B.A.
Senior Behavior Consultant
San Gabriel Valley and Inland Empire

Heather Estep is a Senior Behavior Consultant at ABC, Inc. She began helping children with disabilities while in elementary school and middle school as they were mainstreamed into her classes. During high school, she worked at an Easter Seals after school recreational center. As Heather earned her Bachelor’s of Arts degree in Psychology at California Lutheran University, she worked as a respite care provider and then as a tutor with children both in-home and at school. Additionally, she concentrated in Family and Child Development, and took various early education classes. With ABC, Heather worked as a behavior consultant for over a year before becoming a senior behavior consultant.

Behavior Consultants

empty Briseida Catalan