Sensory Integration

Wendy Tremaine, PhD, OTR/L

Dr. Wendy Tremaine has been an occupational therapist for 35 years. Her primary practice area is pediatrics, and she has worked in various settings, including neonatal intensive care unit, acute care, outpatient rehabilitation, school-based practice and private practice. Her professional areas of expertise include sensory processing, the use of therapeutic listening with various client populations

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Daniel Martin, OTD, MOT, OTR/L

Dr. Martin specializes in pediatric care with a clinical and research focus on sensory regulation and leadership development. His work emphasizes the importance of family-centered care and the education and support of caregivers for children with disabilities. In addition to his clinical practice, he has taught courses on the psychosocial factors influencing occupational therapy care.

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Cynthia (Cyndi) Haynes, OTD, MBA, MEd, OTR/L

Dr. Cynthia (Cyndi) Haynes is a pediatric therapist with more than 20 years of experience. She has worked as a clinician and director across diverse settings, including a regional pediatric hospital, pediatric rehabilitation facility, outpatient clinics, early intervention and community preschools, as well as home- and school-based services. As occupational therapy regional director with Employer

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Brooke Weber, MS, OTR/L

Brooke Weber earned her Bachelor of Arts in Child Development and Master of Science in Occupational Therapy from Tufts University in Boston, MA. With more than five years of experience, she has dedicated her career to diverse pediatric environments, encompassing home health, schools and outpatient clinics. Weber specializes in serving children with Autism, attention-deficit/hyperactivity disorder,

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Justine Faghihifar, OTD, OTR, LSVT

Dr. Justine Faghihifar joined the University in 2023 and serves as an Associate Professor in the Occupational Therapy (OT) programs on the Dallas, TX campus. She holds a Doctor of Occupational Therapy and a Master of Family Studies from Texas Woman’s University . Specializing in Autism Spectrum Disorder, mental health, pediatrics, school systems and sensory

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Elizabeth Barnes, OTR/L

Elizabeth (Liz) Barnes graduated from the University of Southern California occupational therapy program and since then has been practicing within several different settings. Barnes started in school-based private practice, with an emphasis on sensory integration for three years. She then took an opportunity to work for the U.S. Army in Germany, helping to develop a

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Jennifer Susong Crowder, DSc, MS, OTR

Dr. Jennifer Susong Crowder joined USAHS in 2015 as a contributing faculty member and transitioned to program director and associate professor for the PPOTD program in 2024. In her role, she coordinates PPOTD capstone projects. Additionally, she works as a scientific review officer leading peer review for federally funded research. Prior to joining the University,

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Kristina Hartsook, DrOT, OTR/L, BCP

Dr. Kristina Hartsook has been practicing occupational therapy since 2015. She graduated from Florida International University with a bachelor’s degree in Psychology. She then completed her Master of Occupational Therapy at the University of St. Augustine for Health Sciences (USAHS) in 2015. She continued her education and received her post-professional doctorate in occupational therapy from

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Karen Park, OTD, OTR/L

Dr. Karen Park has extensive experience in pediatric practice in a variety of service settings including early intervention, clinic, school, hospital and outpatient children’s mental health. She is Board Certified in Pediatrics by the American Occupational Therapy Association and holds Advanced Practice certification in swallowing assessment, evaluation and intervention in California. Prior to joining the

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Gary (Mark) Petersen, OTD, OTR/L

Dr. Petersen is an Assistant Professor in the Occupational Therapy program on the San Marcos, CA campus. He brings more than 12 years of experience working in both clinical practice and in various academic roles. His clinical background has focused on working with children in clinics and schools. He has also worked with adult populations

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Sean Brim, OTD, PhD, MOT, OTR/L

Dr. Sean Brim is an experienced practitioner in early intervention, pediatrics, acute care, home health and orthopedics. He joined the University of St. Augustine for Health Sciences as a full-time faculty member for the Occupational Therapy programs at the Miami, FL campus in 2020. Dr. Brim holds a Bachelor of Science in Applied Physiology and

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Katherine (Katie) O’Hara, MSOT, OTR/L

Katie O’Hara is an instructor at the University of St. Augustine for Health Sciences. Prior to working in academia, O’Hara worked as a pediatric occupational therapist in an outpatient setting. She received her Bachelor of Science in Psychology from North Georgia College and State University in 2012 and completed her Master of Science in Occupational

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