BCBA, LMSW Board Certified Behavior Analyst / Clinical, Licensed Social Worker, Therapist

Carrissa Rondeau, LMSW, BCBA, LBA

Licensed Master Social Worker, Board Certified Behavior Analyst, Licensed Behavior Analyst  

FBS was established in 2015 by Carrissa Rondeau. Carrissa has worked in the mental health field since 2005 providing services for individuals with cognitive and emotional impairments along with their parents and families. Carrissa has extensive training and experience working with individuals with a variety of cognitive and developmental delays including Autism and Down Syndrome and their families (parents and siblings). Her years of experience working directly with individuals and families paired with the training allows her to be uniquely positioned to provide quality services to this population’s diverse needs.

Rachel Tiziani, LMSW

Licensed Master Social Worker

Rachel was raised in the Upper Peninsula and recently returned to the area after spending the last eight years in Grand Rapids, MI working with youth and young adults in a residential behavioral stabilization program along with their parents and families. Rachel has treated youth with extensive traumatic backgrounds, maladaptive behaviors, and other mental health needs including depression, anxiety, self-harm, and attention/impulsivity difficulties. She has also provided therapeutic services to adults within a family setting. Rachel is trained in Trauma Focused Cognitive Behavioral Therapy. She utilizes Dialectical Behavioral Therapy (DBT), Motivational Interviewing, and other integrative approaches to meet the needs of her clients.


Elleta Weber, Behavior Analyst, Therapist, Functional Behavior Services in Marquette MI. Behavior analytic (ABA), and mental health services (therapy) for children, teens, adults, families in the UP.

Elletta Weber, BCBA

Board Certified Behavior Analyst

Elletta Weber, born and raised in the Upper Peninsula is a Board Certified Behavior Analyst practicing in multiple facets at FBS. Elletta has experience working with children with developmental disabilities, autism, and emotional disorders. Elletta is skilled at implementing language acquisition, functional living skill acquisition, and behavior reduction programs. Elletta graduated from Northern Michigan University’s Applied Behavior Analysis Program and has since practiced in the Marquette area.

Chiara, Behavior Analyst, Therapist, Functional Behavior Services in Marquette MI. Behavior analytic (ABA), and mental health services (therapy) for children, teens, adults, families in the UP.

Chiara Johnson, BCaBA

Board Certified Assistant Behavior Analyst

Chiara joined the FBS team as an Assistant Behavior Analyst (BCaBA) in December, 2018. Chiara was raised in the Marquette area and graduated from Northern Michigan University (NMU) with a Masters in Applied Behavior Analysis in 2019 . Chiara has experience with providing behavior supports with a variety of ages (children or adults), to increase pro-social behaviors and reduce problem maladaptive behaviors. She is experienced in providing services in various locations such as in home, clinic, community and school settings.  Chiara enjoys working with individuals and their families to address their needs and improve their quality of life.

Joanne Office Manager

JoAnne Tembreull

Office Manager

JoAnne Tembreull grew up in the Upper Peninsula and is the Office Manager for FBS. JoAnne brings over 15 years of administrative experience with her.  Her job is to oversee the office operations and is committed to ensuring our clients and their families experience in our office is a positive one!

Our team consist of many Behavior Technician's. Behavior Techs help with the implementation of behavior plans for our ABA clients.