Our Psychologists

Stephen Tate, Psy.D. is a licensed clinical psychologist who obtained his doctorate degree in clinical psychology from Wheaton College Graduate School. Dr. Tate has more than 26 years of experience as a clinician in the mental health field. In addition to having a master’s degree in divinity from Trinity Evangelical Divinity School, he is and has been a devoted and biblically based Christian since 1973, and a specialized licensed minister since 1986. In his clinical practice, Dr. Tate not only provides psycho-educational and intellectual testing, he also practices the art of combining cognitive behavioral therapy with psychodynamic theory to assist adults, children, adolescents, and families in working through a wide variety of mental health issues, including substance abuse, depression, trauma, marital problems, and anxiety disorders. He firmly believes in helping people learn how to develop proactive solutions to daily life situations. Consequently, Dr. Tate’s unique training in theology and psychology affords him the opportunity to help individuals and families to learn how to integrate their faith with their life as well as understand how their mental health issues can affect their growth spiritually, physically, mentally, and socially should they desire that form of counseling, guidance, and growth. In addition to his training in clinical psychology, Dr. Tate is also a devoted father of twins and triplets, has been married to his beloved wife for over 20 years, and is currently an active and committed deacon in his church.
Anne Su, Psy.D. is a licensed psychologist in the states of Texas and New York. She received her undergraduate degrees in Psychology and Neuroscience from the University of Pittsburgh, and later received her Master's and Doctorate of Clinical Psychology from George Washington University with an emphasis in Child/Adolescent population and Assessments.
Dr. Su's practicum at the Children's National Medical Center in Washington, D.C. involved providing neuropsychological evaluations, concussions assessment, treatment planning, and executive functioning assessment, for a diverse child and adolescent population . She has also practiced as an individual and group therapist with children and adolescents and provided parent support groups and trainings in hospital, school, and community mental health settings. She has conducted research with concussions in children with ADHD/LD, voluntary response suppression and spatial working memory in adolescents, and the effects of dopamine on traumatic brain injury in animal models.
Dr. Su completed her predoctoral internship at Rebecca School, a DIR-based (Developmental Individualized Relationship) school, in New York, NY. She completed her post-doctoral fellowship and continued working for an additional two years at The Monarch School, a therapeutic day school for individuals with neurological differences, in Houston, Texas. She is passionate about her clinical work with children and adolescents with neurological differences, mood and/or anxiety disorders, developmental disorders, ADHD, learning disorders, and adjustment issues. Dr. Su's therapeutic approach draws on evidenced-based cognitive-behavioral therapy, psychodynamic theory, and DIR and play-based techniques.
Dr. Christie Brewton is a licensed psychologist (LP), who received her doctorate degree in School Psychology from the University of Houston (UH). She has worked within various settings including public schools, community mental health, inpatient psychiatric, juvenile justice facilities, and in private practice. She completed pre-doctoral internship at the Harris County Juvenile Probation Department where she conducted full psychological and forensic evaluations, provided individual and group therapy services to adolescents, and completed a rotation within the Mental Health Specialty Court. Dr. Brewton's post-doctoral training was completed with TRIAD Prevention Services where Dr. Brewton conducted full psychological evaluations with youth and provided therapeutic and crisis intervention services to an underserved population. Dr. Brewton specializes in providing comprehensive and individualized assessments for children, adolescents, and adults across a wide range of assessment areas including Autism Spectrum Disorders (ASD), AD/HD, learning disorders, mood disorders, trauma-related disorders, and behavioral disorders. She is certified to administer the Autism Diagnostic Observation Schedule (ADOS), which is one of the gold-standard assessments for ASD. Dr. Brewton also provides individual therapy services for children, adolescents, young adults across a variety of presenting concerns. Dr. Brewton utilizes a range of therapeutic techniques (e.g., Cognitive-Behavioral Therapy [CBT], Dialectical Behavior Therapy [DBT], Parent Management Training [PMT]) and is committed to providing high quality and evidence-based treatment services.

Dr. Yasisca Pujols completed her doctorate in Clinical Psychology at the University of Texas at Austin in 2013. She was hired to work as a forensic psychologist at the VA Health Care Center in Harlingen, Texas in 2013. While in South Texas, she gained considerable experience in the areas of childhood and adult sexual abuse, Posttraumatic Stress Disorder, Parental Alienation Syndrome, substance abuse comorbidity, and military veteran issues. In 2016, she opened a small forensic-focused private practice in Brownsville, Texas. Since 2018, she has worked independently for the South Texas court systems. Currently, Dr. Pujols provides psychological services including individual and family therapy, psychological assessments, child custody evaluations and court-ordered psychological evaluations. When not in the office, she is actively involved in the sport of Brazilian Jiu Jitsu and is an avid competitor and sports mindset coach.

Dr. Anita Payan is a Licensed Psychologist and Licensed Specialist in School Psychology (LSSP). She completed her Bachelor’s degree in Psychology and Organizational Management at Emory University, Master of Education in Counseling at the University of Houston, and Doctorate of Philosophy in School Psychology at the University of Houston. She has trained in a variety of settings in Houston including Baylor College of Medicine/Texas Children’s Hospital, the University of Texas Health and Science Center of Houston, and various public schools. She completed her American Psychological Association (APA) accredited pre-doctoral internship and post-doctoral fellowship in the Houston Independent School District Psychological Services and Crisis Intervention Department. She has prior work experience as a psychologist in an academic medical setting and as a contracted specialist for conducting psychoeducational evaluations in schools.
Dr. Payan specializes in working with children, adolescents, emerging adults, and families in the assessment and treatment of ADHD, anxiety, depression, and adjustment related issues such as grief and loss. A backbone of her practice is cognitive behavioral in nature, where she works with youth to increase their emotional awareness and identify better ways of thinking and behaving to become more effective in everyday life. She also provides consultation services to assist parents in understanding a diagnosis and applying strategies in support of their child/teen’s path to wellness.


Dr. Alyzae Karim, Ph.D. is a pediatric neuropsychologist and specializes in neuropsychological evaluations of children and adolescents with medical and neurodevelopmental conditions such as epilepsy, traumatic brain injury, cerebral palsy, stroke, sickle cell disease, cancer, brain tumors, Down Syndrome, ADHD, autism, intellectual disability, and learning disabilities. Dr. Karim assesses the interplay of one’s cognitive (attention, executive function, learning, and memory), social, emotional, and academic functioning, and utilizes a client’s strengths and weaknesses to develop individualized and targeted recommendations. Dr. Karim also manages and treats patients with concussion. During her fellowship, she conducted baseline concussion evaluations for the NFL Baltimore Ravens. She also conducts assessments for eligibility for accommodations on college/graduate entrance exams.
In addition, Dr. Karim has experience with providing cognitive-behavioral therapy for children and adolescents with social, emotional, behavioral difficulties. Her practicums at Sundance Behavioral Health Hospital involved providing psychosocial assessments and individual and group therapy to patients with various psychiatric disorders. During her pre-doctoral internship at the Higgins Education Center in Illinois, she developed expertise with providing therapeutic support to students for suicidality, homicidal threats, severe behavioral issues, schizophrenia, autism, and various cognitive disabilities, genetic disorders, and traumatic brain injuries. Specifically, Dr. Karim provided individual and crisis counseling, completed case study evaluations, led IEP meetings, provided staff consultation, and conducted suicide and formal threat assessments.
Dr. Karim received her undergraduate degree in psychology at the University of Texas at Dallas. Upon completion of her undergraduate degree, she was aresearch intern at the University of Texas Southwestern Medical Center where she assisted in research projects related to cognitive functioning and mood disorders in medically ill populations. Dr. Karim then completed a doctoral degree in school psychology at Texas Woman’s University, followed by a postdoctoral fellowship in clinical neuropsychology at Children’s National Health System in Washington, D.C. In her free time, Dr. Karim enjoys traveling, painting, exploring different types of food, and spending time with her family.
Jennifer Chang-Tran, PhD, is a pediatric neuropsychologist who specializes in providing neuropsychological evaluations for children and adolescents presenting with a range of neurodevelopmental, neurological, and/or other medical conditions. She also specializes in psychoeducational evaluations (e.g., ADHD/learning disorders and behavioral/emotional disorders) as well as autism diagnostic evaluations. Dr. Chang-Tran earned her PhD in Counseling Psychology at the University of Iowa, receiving academic honors through the Dean’s Graduate Research Fellowship. During her graduate education, she participated in the Iowa Leadership Education in Neurodevelopmental and other Related Disabilities (LEND) program, an interdisciplinary leadership program that is dedicated to improving the lives of youth with autism spectrum disorder (ASD) and/or other neurodevelopmental disabilities by providing family-centered care and engaging in advocacy and other public health efforts. Dr. Chang-Tran completed her predoctoral internship in pediatric neuropsychology at the Missouri Health Sciences Psychology Consortium, conducting autism diagnostic and neuropsychological evaluations at the Thompson Center for Autism & Neurodevelopmental Disorders and the University of Missouri’s Women & Children’s Hospital. Dr. Chang-Tran then completed her postdoctoral fellowship in pediatric neuropsychology at Baylor College of Medicine (BCM)/Texas Children’s Hospital (TCH), where she developed further expertise in providing comprehensive assessments to toddlers through young adults coming from diverse backgrounds (e.g., in regards to race/ethnicity, linguistic backgrounds, countries of origin, socioeconomic status, religion) and presenting with a variety of concerns.
Dr. Chang-Tran is committed to engaging in culturally responsive work through the practice of cultural humility while promoting equity and social justice in the fields of pediatric neuropsychology and psychology. During her fellowship, Dr. Chang-Tran participated in the Psychology Summer Institute (PSI), organized by the American Psychological Association’s Minority Fellowship Program, receiving intensive professional development mentoring in regards to serving communities of color. She also continues to engage in research through TCH’s Autism Center and SPARK (Simons Foundation Powering Autism Research). Her research interests include understanding cross-cultural differences regarding vaccine hesitancy and attributions of ASD in parents of children with ASD. In her spare time, Dr. Chang-Tran enjoys visiting her family in Southern California, exploring the world with her husband, and spending time with their pet rabbits.