about us

Margie Avila, M.S., CCC-SLP
Rehabilitation Director of Lake Worth

Margie has a passion for working with children with communication disorders and feeding disorders, and has approximately 20 years experience working in the school setting, hospital setting, and private therapy setting.  Through this extensive experience, it has enabled her to work with some of the most challenging children, and she enjoys helping the child and parents overcome challenges.  She specialized in children with both medical and behavioral feeding difficulties, nonverbal children needing an alternative means of communication (AAC), Autism, and children with language disorders who are struggling with school.

Amanda Bamman, M.S., CCC-SLP
Clinical Lead and Speech and Language Pathologist

Amanda Bamman has both Bachelor of Arts and Masters of Science degrees in Communication Sciences and Disorders from Florida State University, graduating in 2006.  During her graduate schooling she obtained a Certificate in Developmental Disabilities as well as extensive pediatric training including experiences in an outpatient pediatric speech clinic and the public schools.

Amanda is certified by the American Speech-Language Hearing Association (ASHA), and she has many years of experience with adults and has recently expanded her practice experience to pediatrics. Amanda enjoys collaborating with parents, caregivers, and the multi-disciplinary team to develop individualized treatment plans for her patients to help them reach their full potential.

Mary Olmstead,M.S., CCC-SLP
Speech-Language Pathologist

Mary Olmstead is a pediatric speech language pathologist with over thirty years of experience. Mary received her master’s degree from the University of Florida in 1984. She has worked in multidisciplinary rehabilitation settings for most of her career. Mary has been a provider for the Early Steps program for the past fifteen years and was a parent advisor for the Florida School for the Deaf and Blind. She has been involved with the local cleft palate team, evaluating and making treatment recommendations for children with craniofacial anomalies. She has received advanced training in Auditory Verbal Therapy, feeding disorders, autism spectrum disorder, and speech apraxia. Mary is bilingual (English and Spanish) and knows some American Sign Language.

Sarah Gonzales-Nguyen, M.A., CCC-SLP
Speech and Language Pathologist

Sarah Gonzales-Nguyen obtained her Bachelor and Masters Degere in Communication and Learning Disorders from Our Lady of the Lake University, San Antonio, TX.  Before moving to Florida, she worked in a variety of settings including a rehabilitation center, clinical practice, as well as home and school based settings.  She has attended classes on Myofacial Release, VitalStim Therapy, brain injury rehabilitation, apraxiam and Beckman Oral Motor.

Sarah's clinical areas of interest include early language development, expressive and receptive language impairments, autism spectrum disorders, behavior management, apraxia, articulation disorders, and feeding/swallowing disorders.  She values a multidisciplinary team and enjoys helping families and their children in a fun and educational environment.

Luz Rojas, M.S., CCC-SLP
Speech and Language Pathologist

Luz graduated from the University Catholic of Manizales with a Master Degree of Science in Speech/Language Pathology and Audiology.  She is experienced with both pediatric and the adult population.  She has worked in a variety of settings including home, school, and rehabilitation. 
Luz's clinical areas of interest include receptive/expressive language disorder, stuttering, phonological/articulation disorder, childhood apraxia of speech, feeding disorders, and vocal cord dysfunction.

Kathryn Stuart, M.A., CCC-SLP

Staff Speech and Language Pathologist

Kathryn Hogg is a pediatric speech-language pathologist. She completed her Bachelors of Health Sciences in Communication Sciences and Disorders and Masters of Arts in Speech-Language Pathology from the University of Florida. Go Gators! She has worked in pediatric private practices, schools, Tacachale Developmental Disability Center, UF Center for Autism and Related Disabilities, and North Central Florida Early Steps. She has assisted in Hanen parent-child social-communication classes for children 0-3 years of age and social groups for school-aged children. 

     Kathryn is a member of the American Speech-Language-Hearing Association (ASHA). Her areas of interest include Autism Spectrum Disorder (ASD), receptive and expressive language impairments, sensory and behavioral needs, functional communication, alternative and augmentative communication (AAC) and visual supports. She believes in advocating and encouraging families as she comes along side them and other professionals to provide the best care for their children.

Natalia Gurina Zakrzeski, M. Ed., CCC-SLP
Speech and Language Pathologist

Natalia loves working with children and feels fortunate to be a pediatric SLP. Natalia earned a B.S. and M.Ed. degree in Communication Sciences and Disorders from Valdosta State University in 2015. She holds a Certificate of Clinical Competency from the American Speech-Language-Hearing Association. Natalia also holds a Bachelor of Arts Degree in linguistics and translation from Pskov Volny University. 

She has treated clients all of ages and has experience working with children with Autism, Cerebral Palsy, Down Syndrome, Dysarthria, Aphasia, and APD. Her expertise includes assessment and treatment of language disorders, motor speech disorders, articulation disorders, phonological disorders, alternative communication methods, reading fluency and comprehension, and fluency.

She believes therapy should be functional and fun. She takes the time to get to know each child and their family and finds creative ways to help them achieve their goals. 

Natalia was born in Russia where she grew up. She is a new busy mom of a beautiful girl and she enjoys spending time with her family and taking weekend trips.

Sarah Brickner, MA, CCC-SLP

Speech and Language Pathologist

Sarah comes to Progressive Pediatric Therapy with 4 years of experience as an SLP.  She earned her Bachelor's degree at New York University with an area of focus on Autism Spectrum Disorders which included interships, work experience, and learning from a variety of professional perspectives.  She earned her Master's degree in Communication Sciences and Disorders and graduate certificate in Autism Spectrum Disorders at the University of Central Florida in 2013.

Jaliz Lopez, SLPA

Speech and Language Pathology Assistant

Jaliz Lopez is a graduate of Florida Atlantic University with a bachelors in Elementary Education. She is currently pursuing a Masters in Communication Disorders in order to become a licensed Speech Language Pathologist. Jaliz also holds an ESOL endorsement. Jaliz’s experience in the classroom gives her a unique perspective into the skills a child needs in order to be successful in a school setting. Jaliz is also bilingual which gives her the opportunity to provide therapy in both English and Spanish.

"The staff at Progressive Pediatrics is experienced, goal orientated, and provides superior care for our son, Chase. The changes in a short time have been huge for us; he is now preparing to use a power wheelchair and is progressing more each day."

Sean and Thea