Leadership Team


OUR TEAM OF PASSIONATE PROFESSIONALS possess a special combination of exceptional training, unwavering compassion and unparalleled dedication. Every day, we put our energy into helping our clients with autism and their families embrace individual success through applied behavioral analysis.

Visit our Careers page if you’re interested in joining our talented team.

Our Team: 

  • We are completely focused on each client’s and family’s needs, offering multiple service locations and flexible scheduling.

  • Our team collaborates with families, teachers and other healthcare providers to ensure each child with autism or related issues receives the wrap-around care needed to maximize his or her potential.

  • Our leaders are experts in the science of Applied Behavior Analysis (ABA) therapy, behavior modification, and verbal behavior. Our team members are among the most highly trained in the industry.

  • We provide extensive training and educational opportunities to ensure our behavioral therapists are up-to-date on ABA best practices.

  • We hire therapists who are serious about what they do – those who are board-certified, those completing practicum hours to become board-certified and those planning to apply to certification programs or programs in a related field.

NICOLE MCMILLAN, PHD, BCBA-D
Chief Clinical Officer

Nicole has been a member of the Engage Behavioral Team since 2015. Since then, she has worked in the areas of skill acquisition and problem behavior reduction in a variety of settings, such as center-based clinics, residential schools, in-home services, public and private schools and early intervention preschools. She has also provided services with several populations, including developing children, caregivers, teachers, staff, adolescents and individuals with Autism Spectrum Disorders and developmental disabilities and visually impaired individuals.

GIANNA FERNANDEZ, M.A., BCBA
Chief Operating Officer, Hernando Clinical Director

Gianna has been a member of the Engage Behavioral Health Team since 2008. She graduated from University of South Florida with a bachelor's in psychology and a master's in Applied Behavior Analysis in 2011. As Chief Operating Officer, Gianna’s central focus is to continue developing and implementing company processes as well as maintaining the integrity of each while preparing to expand operations towards other markets. Her clinical experience includes working with children and adolescents with Autism Spectrum Disorders and other developmental disabilities, as well as typically developing children and adolescents in a variety of settings. She specializes in verbal behavior, skill acquisition and behavior reduction.   

BRITTANY C. WIERZBA PHD, BCBA-D
Chief Processing Officer, Clinical Director: Sarasota

Brittany  joined the Engage team in 2017 as the Sarasota Clinical Director after providing behavior analytic services in both Arizona and Wisconsin.  She earned her Bachelor’s in Psychology and French from Fairfield University in 2011.  Brittany then attended University of Wisconsin-Milwaukee, where she earned a Master’s degree (2013) and Doctorate (2015) in Experimental Psychology with an emphasis in Behavior Analysis.  Brittany has experience conducting functional analyses, developing and implementing function-based treatments for challenging behaviors and developing and implementing a variety of skill-acquisition procedures.  Some of her specific areas of interest include verbal behavior, feeding, automatically maintained behaviors, and staff training.  As a behavior analyst, Brittany is passionate about clinical quality assurance, developing systems to improve overall client experience, ensuring evidence-based interventions are implemented and applying behavior-analytic principles in all settings.

Clinical Directors

AMYE MORRIS
M.A., BCBA
Clinical Director of Wesley Chapel
Amye has been a member of the Engage Behavioral Health team since 2010 and has had the pleasure of working with children with varying disabilities for the past 10 years. She earned her Bachelor’s in Psychology from the University of South Florida, where she also earned her Master’s in Applied Behavior Analysis and Graduate Certificate in Positive Behavior Support. Amye specializes in developing and implementing verbal behavior, skill acquisition, social skills and behavior reduction programs and has experience in verbal behavior programming, intensive behavior reduction, self care, toilet training, feeding, social skills, community outings, caregiver training, and school consultation. I also enjoy presenting at professional conferences. As the Clinical Director of Wesley Chapel, her responsibilities include overseeing clinical operations, collaborating with the clinical supervisory team, and overseeing a supervisory caseload. Amye is passionate about ensuring every client and their families receive the best clinical care provided by our passionate and professional therapist team and caring about each child’s individual success. She feels family involvement is key and looks forward to collaborating with parents to create the best outcomes for success and lasting change.
VIVIANA GONZALEZ M.A., BCBA
Clinical Director: 
Brandon-Riverview

Viviana has been working in the field of Applied Behavior Analysis since 2007. Her experience encompasses work with children, adolescents and adults with Autism Spectrum Disorders and other Developmental Disabilities, and typically developing children and adolescents; as well as caregiver, teacher and staff training. 

Viviana has worked in service delivery, training, supervision and research in the areas of skill acquisition and problem behavior reduction in a variety of settings, such as center-based clinics, outpatient hospital programs, adult day training facilities, private family homes, residential group homes and public and private schools. 

Viviana holds a Bachelor's in Psychology and a Master's in Applied Behavior Analysis from the University of South Florida. In addition to being the Clinical Director for the Brandon-Riverview area, Viviana is a member of Engage Behavioral Health’s Clinical Advisory Board, works closely with our Chief Clinical Officer to coordinate our Research and Development department and leads bi-weekly discussion and reading groups with our RBTs, Clinical Supervisors and Directors. 

Viviana is passionate about teaching and disseminating ABA, and strives to help every client develop strong skills to create lasting change.

MARY KATE LETTERA M.S., BCBA
Area Director: Tallahassee

Mary Kate has been a member of the Engage Behavioral Health Team since 2013. She specializes in providing intensive early intervention services to toddlers and young children with Autism Spectrum Disorder. She has also worked with children and adults with behavioral disorders in a variety of different settings, including family homes, group homes and schools.

Clinical Supervisors: North Tampa

Jennifer Conde
M.A., BCBA
Senior Clinical Supervisor
Elizabeth Solley M.A., BCBA
Senior Clinical Supervisor
Rachel Suberman M.A., BCBA
Hannah Buckman
M.A.
Adam Wilde
M.A., BCBA
Danielle Godish
 M.A., BCBA
Jennifer Zimmer
M.A. RBT
Specialty Program Manager & Special Education Teacher

Clinical Supervisors: Riverview

Jenny Rodriguez
M.A., BCBA
Jessica Scardino
M.s., BCBA
Lorena Zevallos
M.A., BCBA
Kelsey Brown
M.A.,  BCBA

Clinical Supervisors: Wesley Chapel

Trevor Maxfield
M.A., BCaBA
Faith Woerner
M.S., BCBA
Samantha Baseman M.A., BCBA
Diana Kithcart
M.A., BCBA
Claire Stanford
M.A., BCBA

Clinical Supervisors: Tallahassee

Ashley Malone
M.A.,  BCBA
Christina Ennis
M.A.,  BCBA
Christina Domenech
 M.A., BCBA

Clinical Supervisors: Pasco, Pinellas and
Sarasota

Erica Milor 
 M.A., BCBA
Jamie Powell 
M.A.,  BCBA


Gustavo Matos
M.A., BCBA


Expansion Area Clinical Directors

Hannah Van Nostrand
M.S., BCBA, LBA
Clinical Director:
Northern Virginia

Hannah has been a member of the Engage Behavioral Health team since 2009. As a Clinical Director, Hannah assists with managing and supervising staff in Northern Virginia, as well as provides behavioral therapy.