Meet The Team

Maria M. Dobbertien MSOTR/L, BCP, LMT

Maria is the proud owner and operator of Functional Kids Therapy Center LLC. She has worked in inpatient, outpatient, pediatric intensive care and adult rehabilitation for twelve years. She graduated from Western Michigan University with her Master’s degree in science with an emphasis in Occupational Therapy and had always loved working with children. She is one of the only certified Irlen Screeners and Diagnosticians in the state of Michigan. Maria has certification in Interactive Metronome, IM Home, Advanced Therapeutic Listening programs, and is a licensed Massage Therapist. She is a certified Handwriting Without Tears Level 1 provider. Maria also has been trained in Rhythmic Movement Training Levels 1,2, and three as well as Brain Gym and John Barnes Myofascial Release techniques (including MFR healing, MFR I, Cervical Thoracic, MFR Rebounding, and Pediatric MFR). Maria is currently the only Occupational Therapist in the state of Michigan to have a board specialization in pediatrics from the American Occupational Therapy Association.

Jen Roeloef

I graduated with a BS in Occupational therapy from Western Michigan University in 1995. I started my career working in geriatrics, but after having my own children re-focused my career path to working in pediatrics. I have done additional training in Handwriting Without Tears, Visual Processing and academics, Brain and Sensory Foundations and Rhythmic movement. I have certification in Interactive Metronome and Therapeutic Listening. I worked in public schools for 10 years supporting students with a variety of needs from fine motor and visual-motor skills to sensory processing. I am thrilled to be working at Functional Kids Therapy Center!

Greta Shires

Greta is a speech-language pathologist who joined the FUNctional Kids team in May 2017. She has been a practicing speech pathologist for five years. Greta graduated with a Masters in Speech-Language Pathology from Wayne State University in 2012, following which she worked in the school and pediatric outpatient settings. Before her Masters’ degree, Greta taught 7th grade Language Arts/Reading in a public school for five years. Greta is trained in Lindamood-Bell’s Visualizing and Verbalizing, the Kaufman approach to speech praxis, DIR Floortime, PECS and the LAMP approach to augmentative and alternative communication (AAC).     She is also certified to provide the “It Takes Two to Talk” Hanen group program for parents.

Samantha Crimmins
Pediatric Speech-Language Pathologist

Samantha Crimmins MA-SLP, CCC

Pediatric Speech-Language Pathologist

Samantha is a speech-language pathologist who is excited to start on the FUNctionalKids Team at the Caledonia clinic in April 2018. She has been practicing speech-language pathology for 10 years. She is registered with the American Speech-Language-Hearing Association and licensed by the States of Michigan and Colorado. She graduated with a Bachelors in Speech-Language Pathology and French in 2003. Preceding her Master’s degree she volunteered for Americorps as a literacy tutor in Colorado. She then completed her Masters in Speech-Language Pathology from The University of Northern Colorado in 2006. 

After graduating she worked in the schools and with adults in an inpatient and outpatient setting focusing on augmentative alternative communication (AAC). In 2008, she changed her career focus to working with infants and children in the NICU, home(Early Intervention), and OutpatientPediatric Clinic settings. 

She has studied or been trained in Sequential Oral Sensory (SOS) feeding approach, Fragile Infant Feeding Institute (FIFI), Catherine Shaker and Melanie Potock’s Feeding courses, NOMAS International Feeding Symposium, Lindamood-Bell’s Visualizing and Verbalizing, PECS, LAMP and TobiiDynavox Core approach to (AAC). She is passionate about making progress using a positive developmental play-based approach with infants and children who have feeding and communication challenges.

Gail Conlan PT
Pediatric Physical Therapist

Gail has been a pediatric-focused Physical Therapist for over 25 years with expertise in the outpatient and school settings.

She has completed certification in the NDT Pediatric 8 week course and Certified in the NDT 3 week baby/infant course.

She is certified additionally in MNRI Dynamic and Postural Reflex Pattern Integration by Svetlana Masgutova.

Trained in Functional Strengthening and Fitness Interventions for Children with Developmental Disabilities.

Completion of coursework for “ If you can’t breathe you can’t function”, and “Pediatric Vestibular Rehabilitation” with Gaye Cronin.

Cortney Carlisle
Pediatric Occupational Therapist

Hi, my name is Cortney! I’ve been an occupational therapist for 4 years with a focus on pediatrics. I have been certified in the SOS Approach to Feeding and Astronaut Training. I have additional experience in sensory processing/sensory integration, visual-motor integration, feeding, oral motor development. I also utilize Therapeutic Listening and various fine motor development strategies including Handwriting Without Tears. Aquatic therapy has been another area of experience in my clinical experience and I love working with kids of all ages. I am a positive and energetic therapist who loves to help kids and their families!
Cortney is joining the Functional Kids Family in Caledonia, MI

Danielle Hackert
Pediatric Occupational Therapist MS, OTR/L

Danielle is a registered and state licensed Occupational Therapist and certifications in therapeutic listening and interactive metronome. Danielle received her Masters in Occupational Therapy from Western Michigan University. Her most recent clinical experience before her time with us was focused at Mary Free Bed Rehabilitation hospital with a focus on neuromuscular conditions, feeding challenges and Autism. She loves how every child is different and committed to lifelong learning to provide the very best care for her clients.

Lori Davis
Licensed Occupational Therapist

Lori has her master’s degree from Western Michigan University and she has 24 years of pediatric experience. She has worked in a variety of settings including rehabilitation, Early Childhood intervention, educational and community environments. She has also been instrumental in instruction at Western Michigan University as a teacher for the neurokinesiology and even helped design research in the field of Occupational Therapy.

Elvira Kraker
Certified Occupational Therapy

Hello everyone! Happy to share a little about myself. I have been a pediatric-focused therapist since 2007. This Fall I am in my 13th school year as a school-based practitioner which is my full-time job. I have really enjoyed getting to work with some terrific kids! Thank you. I have certification in Interactive Metronome and Therapeutic Listening. My training includes Brain Gym, Bal-A-Vis-X, Handwriting Without Tears, School Moves, and Alert Program. It has been great to work with such a talented team on every level!

Emily Guthrie
Physical Therapy Assistant

Emily has a bachelor's degree in Athletic Training from Northern Kentucky University and a Physical Therapy Assistant degree from Kent State and has been a part of the FUNctional Kids team since September 2019. Emily has worked in a variety of fields including high school athletics, performing arts and pediatrics. Emily discovered her love of working with children at a young age while she coached preschool gymnastics. She decided to focus her attention on pediatric physical therapy during her education, spending her clinical rotation at Mary Free Beds inpatient pediatric unit. Emily can’t wait to help each child reach their full potential, and have FUN in the process!

Kimberly Hutchinson

Kimberly earned her Master of Science degree in occupational therapy from Grand Valley State University and is a member of the Pi Theta Epsilon honor society.  She has extensive experience working with individuals with disabilities in a variety of home and community settings.  Prior to graduate school, she worked professionally as a costume designer for 10 years in both local and regional theaters.  She continues to put her sewing skills to use making weighted blankets and other sensory items for clients here at Functional Kids.  A believer in the true healing power of the arts, she loves to incorporate music, movement, and art into her treatment sessions whenever possible.  Kimberly is also level II Reiki certified and an avid yoga practitioner.

Tammy Pool

Tammy has work in the medical field for over 10 years she has worked extensively with authorizations and billing as well as customer service. She’s always cheerful and brightens up every room with her big smile and huge heart. She is a creative problem-solver that is up for any challenge! She has also worked extensively in management with various teams of professionals to help make their working environment exceptional. She’s a longtime volunteer and community leader with the Jaycees and has helped organize community events for functional kids beginning in 2019. We appreciate all her hard work and dedication every project she takes on. 

Sarah LeBreton
Education Support Specialist

Sarah brings an array of experience in the fields of elementary education, human services, educational advocacy, and behavior intervention to our Functional Kids team. Sarah served as an elementary educator in our community for more than 15 years both as a classroom teacher and behavior interventionist. She is passionate about working with families and schools to ensure students’ educational goals are met. Sarah works to build strong connections between families, schools, and community supports.  


In her new role, Sarah will continue to work with families and schools to ensure children are successful.  She will support families navigating the education system and assist them with learning how to best advocate for their children. Additionally, Sarah looks forward to supporting children experiencing reading difficulty by providing reading interventions based on Evidence Based Literacy Instruction (EBLI). Sarah has a Bachelor’s in Social Science from Aquinas College and a Master’s in Elementary Education from Western Michigan University. She is excited to be part of The Functional Kids team in order to support the families of our community!

Ellen Rosevear
Licensed Occupational Therapist

I love the philosophy of Functional Kids Therapy and I love working with the staff and kids here.
Children are my passion. Seeing the children succeed at new tasks and show pride in their work is so exciting. I have had a very blessed career as an Occupational Therapist over the last 35+ years. I have had the opportunity to work with many children with a variety of needs (and some adults too).


I have experience in feeding and swallowing disorders, autistic spectrum disorders, Attention Deficit hyper activity disorder (ADHD), sensory processing disorder, torticollis, post-concussion
(mild TBI), cerebral palsy, anoxic brain injuries and a variety of other conditions. Whenever the kids make small changes, I get so thrilled to be a part of their life changes. I use an eclectic approach when working with any client. This leads me to make continuing education a
huge part of my therapy life to meet the needs of the diverse populations I have worked with. Outside of work, I enjoy to out of doors- all seasons. Yes I even love the snow. I am also learning home renovation skills with my husband, Tim I look forward to working with your children, and I appreciate the fact that families share their children with me.

Cailin Amundsen
Speech language pathologist

Cailin graduated from Western Michigan University with a Master of Arts degree in Speech-Language Pathology in 2016, and has been supporting families through Calhoun County’s Early On program as an early interventionist since then. Cailin became a certified leader of Hanen’s It Takes Two To Talk program for parents of young children with delayed language skills in late 2018, and found inspiration in the program’s parent coaching methodology as well as the clear impact play and fun has on speech and language development. When she isn’t working, Cailin enjoys completing home improvement projects, making music, and taking adventurous vacations with her husband and dog.

Alexis Videan
Office Manager & Tutor

Alexis has been a part of the Functional Kids Therapy team in Caledonia since 2018. After graduating from Grand Valley State University in 2014 with a Bachelor’s degree in Elementary Education and English, she worked as a teacher for three years. She specialized in literacy, academic interventions (RTI), positive behavioral interventions and supports (PBIS), and restorative practices.


She has extensive knowledge of the special education process and has experience working with children of all ages and abilities. Alexis has a passion for connecting families with the support that they need and enjoys using her background in education to help navigate this process. She lives in Lowell with her husband and son.

Rhonda Dobbertien
Billing and coding specialist

I have been doing various medical billing for 20 years working in hospitals and other various medical facilities. As kids have always been my passion, it is my pleasure to be working at Functional Kids and contributing to help them get the services they need. I take pride in solving the puzzle of each insurance rejection to obtain payments quickly. When not working I enjoy sitting down with a good book and spending time with my four grandchildren. 

Alyssa Rohr
Occupational Therapist

 Alyssa is a registered and state licensed Occupational Therapist and Battle Creek native. She is passionate about pediatrics and more specifically the area of sensory integration.


Alyssa received both her Bachelor’s degree and a Master's degree of Science in Occupational Therapy from Western Michigan University. Alyssa has experience with a range of pediatric conditions including Autism Spectrum Disorder, Sensory Processing Disorders, genetic disorders, Tourette's, cognitive and developmental delay, social/emotional impairment, visual motor impairment, and coordination difficulties.


She also has experience utilizing feeding strategies, Zones of Regulation, Therapeutic Listening, and Handwriting Without Tears. Alyssa is excited to bring her knowledge and skills to Functional Kids and encouraging her clients to participate in therapy through fun and meaningful ways. 

Deborah Hayes

Insurance Biller/Coder

Deborah has over 10 years of experience in management of Outpatient Physical Therapy practices and 14 years in billing all therapy services. Deborah has her Associate of Applied Sciences in Health Information Technology. She also has certifications in insurance billing and coding. Deborah can assist patients/parents with insurance verification, billing, community resources and any other questions/concerns regarding your care. Deborah is married to her wonderful husband Jeff and is the proud mother of two boys and two stepdaughters. Deborah also has three four legged children, Bullet, Ben and Riley. Her hobbies include dogs, music, rock hunting and astronomy. Deborah has a friendly disposition and is here to assist our patients in any way possible.