Kelly Barnhill, MBA, CN, CCN

K Barnhill Kelly Barnhill, MBA, CN, CCN, is the Director of the Nutrition Clinic at The Johnson Center for Child Health and Development. She is a Certified Clinical Nutritionist, with over a decade of experience working with nutrition in children with autism and related disorders. At the Johnson Center she directs a team of dieticians and nutritionists that has served over 3000 children through this practice.

In addition to her clinical practice, Kelly also serves as the Johnson Center Clinical Care Director, overseeing management and implementation of multidisciplinary care across the practices within the organization. In 2008, Kelly accepted the position of Nutrition Coordinator for the Autism Research Institute. In this role, she designs and manages curriculum and training for hundreds of nutrition practitioners each year, as well as providing direct training for thousands of parents. Kelly is a sought-after presenter, speaking at several national and international conferences each year.

Her studies and work at JCCHD are the culmination of many years’ effort and expertise, with the last several years devoted to understanding the biological underpinnings of the disorder we know as autism. Her work has raised awareness of the need for these services for children with autism and related disorders. Kelly is a graduate of The University of Texas at Austin.

Alan Gutierrez, MS, RD, LD

Alan Gutierrez, MS, RD, LD, is a registered dietitian whose longstanding clinical and research interests include behavioral and environmental nutrition, as well as oral health. His clinical training includes a dietetic internship at Tulane University School of Public Health and Tropical Medicine and student clinician training at the Bastyr Center for Natural Health, a teaching medical clinic of Bastyr University in Seattle, WA. He has a Master of Science degree in nutrition at Bastyr University and a Bachelors of Science degree in biology at William Paterson University in New Jersey. In addition to his academic and clinical training, Alan has accrued an extensive knowledge of nutritional supplementation and support after having worked in this field for more than a decade. Alan is inspired by the researchers, clinicians and parents in the autism treatment community. He has worked with The Johnson Center since 2009 to consult with families, conduct clinical research, and presents his work at national and international research conferences.

Rebeca Shearer, NP

Rebeca Shearer (formerly Flores), NP has been interested in integrative health for many years.  In addition to nursing school, she has spent significant time studying nutrition. She joined the team at The Johnson Center in 2011 and is committed to merging her education and interest in helping people reach their optimum health. Rebeca became a Nurse Practitioner in 2017 and now provides comprehensive medical support to children and adults with developmental disorders, chronic health issues, and more. Rebeca speaks fluent Spanish, providing a critical healthcare resource for many patients and their families.

Her blog write-up can be found at http://www.johnson-center.org/blog/entry/313

Jeanna Hill, M.S., CCLS

Jeanna Hill (formerly Martinez) received her B.A. in Psychology with a minor in Early Childhood Intervention from Texas State University. She then went on to obtain her Master’s degree in Family and Child Studies on the Child Life Track. She completed a Child Life practicum and Child Life internship at Christus Santa Rosa Children’s Hospital in San Antonio, TX. While there, she was placed in the hospital’s outpatient clinic, as well as completed her internship rotations in the GI unit and Emergency Department. Jeanna is currently a Certified Child Life Specialist and is trained in child development, special education, early intervention, family systems and stress, and developmental disabilities. Jeanna has experience working with children and families in various settings including residential facilities, educational facilities, and children’s hospitals, providing emotional support to families during stressful life experiences.

Dane Mosher, DO

Dane Mosher, D.O., is a board-certified family physician; like many people in the field, he began studying the treatment of autism after his son received an autism diagnosis.

Dr Mosher sm

Dr. Mosher was raised near Houston and has spent most of his life in Texas.  He received his Bachelor of Science degree in Mathematics from New Mexico State University, followed by several years working as a computer programmer in Austin and West Texas.  In 1999, he changed careers, becoming the head brewer for an Austin-area microbrewery. He later decided to pursue his longstanding interest in the health sciences and committed himself to a career of helping others by obtaining his Doctorate of Osteopathic Medicine from the University of North Texas Health Science Center of Fort Worth. 

He completed a three-year family medicine residency at East Tennessee State University in Kingsport, Tennessee, a primary care training program in an area of the country that sees a wide variety of pathologies.  The teaching hospital in Kingsport has one of the busiest emergency rooms in Tennessee.  His training there included pediatric outpatient and inpatient care, as well as time in the pediatric ICU. In 2015, Dr. Mosher became an IFM Certified Practitioner.

IFM Badge


In 2017, Dr. Mosher joined the Board of Directors of the American Academy of Environmental Medicine.

Dr. Mosher’s professional interests include childhood development, osteopathic manipulative medicine, functional medicine, and urgent care medicine.

Amanda Tami, MA, LPC, BCBA

Amanda holds a master’s degree in counseling psychology and has completed a recertification program in Applied Behavior Analysis (ABA). In addition to being a Board Certified Behavior Analyst, Amanda is a Licensed Professional Counselor.  She has experience working with both children and adults, including those who have autism spectrum and other pervasive developmental disorders, ADD/ADHD, anxiety issues, and trauma, both as a BCBA and as a counselor. She has additional specialized training as a counselor in EMDR therapy and its applications to children.

Amanda is pleased to be able to share her experience and knowledge in the Johnson Center’s Behavioral Services and Counseling program, giving her the opportunity to pursue her passion for helping children and adolescents with special needs. Amanda comes from a unique position in her education and background to understand the challenges that clients and their families face - developmentally, behaviorally, emotionally, and systematically - to see the patterns and teach the skills needed to improve quality and functioning in all aspects of life.

Jarett Suhr

jarrett 3

Jarrett Suhr has been working at The Johnson Center in the Nutrition Clinic since August of 2009. Born in The Woodlands, Texas, he moved to Austin with his family in 1998. Diagnosed with ASD when he was a child, Jarett enjoys working at The Johnson Center because he gets to be a part of an organization that helps so many others on the autism spectrum.

His colleagues at The Johnson Cetner value Jarrett’s kind nature, humor, and optimism. As assistant to the Nutrition Clinic Manager, Jarrett is in charge of shipments and stocking inventory for the Nutrition Clinic. Always willing to lend a helping hand, Jarrett makes sure to keep the toys and play areas organized and clean for when clients visit the office, and he often assists the administrative staff with their tasks.

Chelsea White, RN

Chelsea White, RN is currently enrolled in graduate school at the University of Texas at Austin, where she is a student in the Pediatric Nurse Practitioner program. She previously received her bachelor’s degrees in both psychology and nursing from the University of Texas at Austin. In 2017, after becoming a Registered Nurse, she joined The Johnson Center team.

Chelsea is committed to continuing her education and utilizing her background knowledge and experience in the mental healthcare field to create a more integrated healthcare experience for children from all backgrounds.

In her free time, Chelsea studies, plays with her cat, Nigel, reads, spends time outside in the lovely Texas weather, and volunteers with Refugee Services of Texas.

Luisa Fernandez

Luisa Fernandez is a senior at The University of Texas at Austin, where she is pursuing a major in Advertising and a minor in Business Foundations. As an administrative assistant in her prior positions, she has gained an extensive interest in management and administrative sectors for non-profit organizations. While residing in her home country of Mexico, she volunteered for organizations fighting against poverty and violence that have directly affected children. During her free time she enjoys outdoor activities, attending music concerts, and painting. ​

As an administrative staff member of The Johnson Center, she works directly with families and potential patients by guiding them through our programs and services to meet their needs and ensure that each member of our community feels welcome and supported.

Dr. Jana Rundle

Jana Rundle, Psy.D., is a licensed clinical psychologist offering professional psychological services at The Johnson Center for Child Health and Development in Austin, Texas.  After completing her doctoral work at California School of Professional Psychology in San Diego, she moved to Austin, Texas, in order to continue to provide psychological services in her home state.  She is trained in psychological and neuropsychological assessment, administering and interpreting tests that provide information about an individual’s cognitive functioning, attention and memory, gross and fine motor development, language and reading skills, visual-spatial functioning, executive functioning, and emotional and personality development. She also has years of training providing individual and group therapy for adults and adolescents, providing play therapy for children, and in facilitating social skills groups for children with neurodevelopmental disorders. 

Dr. Rundle’s therapeutic style is person-centered and insight-oriented. She collaborates with each client to determine the best treatment plan for him/her. She believes that one of the most important agents of change is the alliance that one has with his/her therapist. Her warm and engaging style helps her create a comfortable atmosphere for clients so that they can begin to feel better. Her areas of expertise are depression, anxiety, grief and loss, life transitions, trauma, relationship concerns, play therapy with children, and intellectual and developmental disabilities.

Elaine Tran

Elaine Tran is a recent graduate of The University of Texas at Austin where she earned her bachelor’s degree in Human Development and Family Sciences with a Business of Healthcare certificate. She serves as one of the clinical assistants at The Johnson Center and works closely with the entire clinical team, providing support and assisting patients with their needs. She has had previous experience working with children as a teaching assistant at the Priscilla Pond Flawn Child and Family Laboratory School on the UT campus. Elaine plans to use her clinical experience as well as her child care background to become a pediatric physician assistant. ​In her free time she enjoys spending time with her family, friends, and dogs as well as playing volleyball and watching movies.

Luis Vazquez

Luis Vazquez is a junior at the University of Texas at Austin, where he is studying Biomedical Engineering. He aspires to go to medical school in the future to become a physician, with plans to provide services for people in underserved areas. Luis is one of the clinical assistants at The Johnson Center, where he is learning more about providing services in a non-profit healthcare clinic. He is focused on learning more about the unique needs of children with developmental delays and/or chronic health issues and their families. As part of his responsibilities at the center, Luis provides critical Spanish translation support for the patients, families, and clinicians. In his free time, Luis likes to hike around Austin, visit dogs in the animal shelter, and work on his car.​

Jennifer McNew

A graduate of East Carolina University with a background in Nutrition & Psychology, Jennifer’s passion is to empower & bring healing to people in challenging circumstances. Her career in the non-profit industry began at the North Carolina Department of Health & Human Services, where she worked to educate the public & policymakers about the dangers of toxic chemical releases. As a fierce advocate for disadvantaged populations, Jenn has worked to connect homeless teenagers with supportive community resources; taught yoga to individuals with developmental disabilities as a 200hr certified instructor; and participated in multiple fundraising events for non-profit organizations around North Carolina, New York & Texas.

Her belief that no single path is right for every individual has made Jenn a natural fit for the multi-disciplinary approach of The Johnson Center. Her work here includes coordinating & providing oversight of all administrative operations; maintaining billing of all medical, diagnostic, counseling & ABA services; and assisting in the planning of community events. When not in the office, she can be found exploring new cities, hiking or biking the great outdoors, and attending cultural events throughout Austin.