9415 SW 72nd Street, Miami, FL 33173

About Alanna Fesser, B.A., BCaBA

Alanna Fesser is a Board Certified Assistant Behavior Analyst from Miami, Florida.  She earned her Bachelor of Arts in Psychology from the University of Miami.  Alanna furthered her education and training by completing graduate level coursework in ABA from Florida Institute of Technology in 2013.  She has been working with children with autism and their families for over ten years, providing services in their homes and within a clinic setting.  Alanna has worked as a Behavior Therapist at Gomez Behavior Services for over 4 years and is bilingual in English and Spanish.

Assistant Behavior Analysts

Meet The Team!

About Blanca Diaz, B.S., BCaba

Blanca Diaz is a board certified assistant therapist.  She obtained her Bachelor's degree in Applied Behavior Analysis from Florida International University.  The focus of her studies has been using applied behavior analysis to treat children with developmental disabilities.  Blanca has been working with children with autism and learning disabilities for over 4 years. She has provided one-on-one therapy in their homes and within a clinic setting under the supervision of Gomez Behavior Services.  Blanca is bilingual in English and Spanish and has been working as a behavior therapist with Gomez Behavior Services since the Spring of 2014.

Priscilla Deal Rossi,  M.S., BCBA

​Clinical Director

Priscilla Deal is a Board Certified Behavior Analyst and Clinical Supervisor of Gomez Behavior Services.  She is founder of two free community programs in Miami: Snips for Autism and Smiles for Autism.  For more than 10 years, Priscilla has specialized in providing applied behavior analysis services for children with developmental disabilities and treating children with severe food refusal.  Priscilla began working with children with autism shortly after she completed her bachelor's degree in Psychology from Nyack College in 2005.  Priscilla went on to pursue a master's degree in the field of Applied Behavior Analysis and Autism, which she recieved from Sage Graduate School in Troy, New York.  Priscilla has been Board Certified as a Behavior Analyst since 2010.  Priscilla has focused on making Miami the BEST city a child with autism can live.  She continues to pursue this goal through her free community programs and her free tips on social media.



About Giancarla David, M.A.

Giancarla David is a Behavior Therapist.  She has worked with children with autism for the past nine years.  Giancarla has provided services within the school, home, and clinic settings.  She specializes in providing early interventions services for children with autism as well as behavior management services for typically developing children with behavior problems.  She received her Bachelor's degree in Exceptional Student Education in 2006.  Giancarla completed a Masters Degree Program in Applied Behavior Analysis with a concentration in autism in 2016.  She is bilingual in Spanish and English and has worked as an behavior therapist with Gomez Behavior Services since 2008. 

Gabriela Gomez Riveron, M.A., BCBA


Gabriela Gomez Riveron, "Gaby Gomez", is a Board Certified Behavior Analyst.  She is the owner of Gomez Behavior Services, serving families with children on the autism spectrum (ASD) since 2004.  Gaby began working with children with ASD in 1998 as she was completing her bachelor's degree in Psychology from Florida International University. She then went on to pursue a master's degree in the field of Applied Behavior Analysis, which she received from the University of Nevada, Reno. She has been a Board Certified Behavior Analyst since 2004.  Gaby has focused on helping improve children's lives using ABA methods, specializing in early intervention for over 15 years. She has worked with a wide range of children with varying special needs as well as typical children with behavior problems.