Kathleen Angkustsiri, M.D.

Assistant Professor
Pediatric Child Development & Behavior

Dr. Kathleen Angkustsiri is a developmental-behavioral pediatrician with interests in neurodevelopmental disorders including autism spectrum disorders, chromosome 22q11.2 deletion syndrome (22q11.2DS), and fragile X syndrome. She is involved in research on dysmorphology in children with autism spectrum disorders, behavioral characteristics of children with 22q11.2DS, and clinical trials for autism and fragile X syndrome.

Liga Bivina, M.S., L.C.G.C.

Licensed and Certified Genetic Counselor, Coordinator of UC Davis NF/Ras Pathway Genomic Medicine Clinic, Department of Pediatrics, Division of Genomic Medicine

Liga Bivina is a genetic counselor in the Department of Pediatrics, Division of Genomic Medicine.  She sees children, adults, and their families for a variety of indications. She serves as the UC Davis NF/Ras Pathway Genetics Clinic Coordinator and has experience caring for individuals with Lysosomal Storage Disorders receiving Enzyme Replacement Therapy (ERT). She enjoys building relationships with patients and families and working to help improve their quality of life. 

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Simeon Boyd, M.D.

Children’s Miracle Network Endowed Chair, Associate Professor, Department of Pediatrics, School of Medicine

Dr. Boyd's clinical interests focus on: dysmorphology; delineation of new syndromes; congenital anomalies - craniosynostosis, oral clefts, facial asymmetry syndromes, exstrophy-epispadias complex; and lysosomal storage disorders. His research interests focus on: clinical and molecular dysmorphology; genes causing congenital defects; genetic analysis of multifactorial diseases; genetic epidemiology; and disorders of intracellular trafficking.

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J. Faye Dixon, Ph.D.

Clinical Psychologist, Clinic Director, UC Davis MIND Institute ADHD Clinic. UC Davis Department of Psychiatry and Behavioral Sciences

Dr. Dixon is licensed clinical psychologist. She has a long history in child psychopathology, specifically the areas of depression, anxiety, PTSD, ADHD and learning differences in children. Currently, Dr. Dixon is the Clinic Director of the MIND Institute ADHD clinic and a member of the UC Davis Medical Center Department of Psychiatry and Behavioral Sciences (volunteer clinical faculty), as well as a MIND Institute faculty member. Dr. Dixon’s clinical and research interests include attention deficit/hyperactivity disorder (ADHD), learning differences, anxiety, and mood disorders in children.

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Erika Frieze, Psy.D.

Erika Frieze, Psy.D.

Clinical Psychologist, UC Davis MIND Institute

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Beth L. Goodlin-Jones, Ph.D.

Associate Professor of Clinical Psychiatry, Department of Psychiatry and Behavioral Sciences, School of Medicine

Dr. Goodlin-Jones is a clinical developmental psychologist, the clinical research coordinator for the UC Davis MIND Institute, and an active member of the clinical diagnostic assessment teams. The assessment teams see a wide range of children with at-risk development and neurodevelopmental disorders, including autism and fragile X syndrome. The focus of her research involves sleep patterns in typically developing children and children with autism, developmental delay, and fragile X syndrome. She is also involved in treatment research with children with autistic spectrum disorders and co-morbid psychiatric illnesses.

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Randi J. Hagerman, M.D.

Medical Director, UC Davis MIND Institute; Endowed Chair in Fragile X Research; Professor, Department of Pediatrics, School of Medicine

Dr. Hagerman is medical director of the UC Davis MIND Institute and director of the Fragile X Research and Treatment Center. She has more than 20 years of experience in the field of neurodevelopmental disorders and is an internationally respected leader in fragile X research including fragile X syndrome, a genetic condition that is the leading cause of inherited intellectual disability and the leading single-gene cause of autism.

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Robin L. Hansen, M.D.

Director of Clinical Programs, UC Davis MIND Institute; Professor and Chief, Developmental-Behavioral Pediatrics, School of Medicine; Director, University Center for Excellence in Developmental Disabilities

Robin Hansen, M.D., is Professor of Pediatrics, Director of the UC Davis Center for Excellence in Developmental Disabilities and Director of Clinical programs at the MIND Institute. She is a board-certified developmental behavioral pediatrician with vast experience in treating children with neurodevelopmental disorders as well as in clinical research. She has been the Director of the NICU Follow-up Clinic at UC Davis since 1985.

Her clinical research has focused on children's temperament, long-term effects of prenatal drug exposure, gene-environment interactions related to causes; early identification of autism spectrum disorders, and biomedical treatments for neurodevelopmental disorders.

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Amanda S. Hanson, M.S.

Genetic Counselor, Department of Pediatrics, Division of Genomic Medicine, Coordinator of Enzyme Replacement Therapy Program

Amanda Hanson is a genetic counselor in the Department of Pediatrics, Division of Genomic Medicine who sees families and patients of all ages for a variety of indications.  She also serves as the Coordinator for the Enzyme Replacement Therapy (ERT)  program at UC Davis for patients with Lysosomal Storage Disorders. 

In addition to her ERT duties, she has particular interest in cardiovascular genetics, inherited eye diseases, and tuberous sclerosis. Amanda enjoys assisting families to achieve understanding of inherited conditions, acting as a resource for individuals, and helping patients through difficult times and complex decision making.

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Kristin Herman, M.D.

Assistant Clinical Professor

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Ingrid N. Leckliter, M.S., Ph.D.

Clinical Psychologist

Dr. Leckliter, a specialist in developmental neuropsychology, has more than 20 years of experience providing clinical services to children with neurodevelopmental disorders and their families. At the UC Davis MIND Institute and Children's Hospital, she serves children who are affected by a broad range of conditions, including Attention Deficit Hyperactivity Disorder, disorders on the autism spectrum; learning disorders; and other conditions resulting from adverse developmental and environmental risk factors such as prenatal exposure to teratogens and child abuse and neglect. Learning disorders are an area of particular interest to her and she is currently developing a Learning Disorders Clinic at the MIND Institute. Dr. Leckliter is committed to helping families understand their child's unique strengths and cope with their child's special needs. This process enhances the child and parent relationship, thereby supporting the child's emotional coping skills, and his or her functioning in society.

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Nicole Z. Mans, M.S., L.C.G.C.

Genetic Counselor, Department of Pediatrics, Clinic Coordinator, Biochemical Genetics Clinic

Nicole Mans offers comprehensive genetic counseling services for adults and children who are at risk for a genetic condition, or who have a personal or family history of a genetic condition. 

She sees general adult and pediatric genetics patients in her own clinic, in a team with the physicians in the Division of Genomic Medicine clinics, and in the hospital.  Nicole is the genetic counselor for the Metabolic Clinic at UC Davis.

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A. Murat Pakyurek, M.D.

Health Sciences Associate Clinical Professor, Department of Psychiatry and Behavioral Sciences, Medical Director, UC Davis MIND Institute ADHD Program

Dr. Pakyurek is board certified in general psychiatry and child and adolescent psychiatry. He is the medical director of the UC Davis Medical Center Department of Psychiatry and Behavioral Sciences outpatient clinic. Dr. Pakyurek’s clinical and research interests include autism spectrum disorders in children, attention deficit/hyperactivity disorder (ADHD) and mood disorders. He is also interested in education of psychiatry residents and service delivery systems for psychiatric populations. Dr. Pakyurek is currently involved in providing psychiatric care for children with autism and ADHD at the UC Davis MIND Institute.

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Katherine A. Rauen, M.D., Ph.D.

Chief, Division of Genomic Medicine
Professor, Department of Pediatrics
Albert Holmes Rowe Endowed Chair in Human Genetics II


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Julie Schweitzer, Ph.D.

Director, Attention, Impulsivity, Regulation (AIR) and ADHD Program UC Davis MIND Institute; Co-Center Mentoring Director of the MIND Institute; Co-Director, Mentored Clinical Research Training Program – CTSC, UC Davis; Director, UC Davis Schools of Health Mentoring Academy; Professor, Department of Psychiatry and Behavioral Sciences, UC Davis School of Medicine

Dr. Schweitzer's interests include the identification and treatment of attention-deficit/ hyperactivity (ADHD) and related disorders in children and adults using behavioral/neuropsychological and functional neuroimaging methods. Other interests include the use of reinforcement and learning paradigms in imaging as applied to psychopathology. Dr. Schweitzer's goal is to apply translational research methods using a variety of basic behavioral and physiological techniques to develop novel treatment and preventative approaches to addressing attentional disorders.

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Mary Beth Steinfeld, M.D.

Developmental Pediatrician, Department of Pediatrics 

Typical and atypical child development; diagnosis and management of autism spectrum and other developmental disorders; feeding disorders and failure to thrive in infants and young children; preterm and other high risk infant developmental follow up; infant mental health. 

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Vivien N. Triano, M.S., L.C.G.C.

Genetic Counselor, Division of Genomic Medicine, Department of Pediatrics 

Vivien Triano recognizes that genetic and genomic information is complex and the evaluation process can be daunting. Her role is to help individuals and their families understand and evaluate their options and to facilitate individualized decisions based on their unique circumstances. She strives to provide her patients with the support and resources they need to navigate the rapidly changing world of genomic medicine.

Vivien Triano is a licensed and board certified genetic counselor in the Division of Genomic Medicine. She works with pediatric and adult patients and their families who are at risk for or have a personal or family history of genetic or genomic disease. She is currently building the Division’s telemedicine program in order to better serve families who reside in locations where access to genetic and genomic services is limited.

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