Mary Michaeleen Cradock, Ph.D. is the Director of Behavioral Health at St. Louis Children’s Hospital and is a Clinical Assistant Professor of Pediatrics.  She received her Ph.D. from St. Louis University.  She is the primary supervisor for the craniofacial rotation.

Gillian S. Mayersohn, Psy.D., is a Pediatric Psychologist and a Clinical Assistant Professor of Pediatrics. She received her Psy.D. in Clinical Psychology from Nova Southeastern University.  She is the Pediatric Psychology Fellowship Training Director. Dr. Mayersohn serves as the psychologist for Solid Organ Transplant, Dialysis, and Cardiology/The Heart Center. Her primary areas of specialization are in end stage organ disease, solid organ transplantation, ESRD/dialysis, and congenital heart defects. She provides clinical services to both inpatients and outpatients using evidence-based interventions (e.g., Cognitive Behavioral Therapy, Acceptance & Commitment Therapy, Behavior Management, Motivational Interviewing). Dr. Mayersohn’s clinical and research interests include pre-transplant psychological evaluations, adjustment to and coping with chronic illness, adherence, training, program development/quality improvement, quality of life, and post-traumatic growth. She is the primary supervisor for the solid organ transplant/cardiology/dialysis rotation.

Jennifer Allen Lischwe, PhD, is a Clinical Psychologist at St. Louis Children’s Hospital and an Assistant Professor of Clinical Pediatrics at Washington University School of Medicine. Dr. Allen earned her PhD in Clinical Psychology at St. Louis University and received specialized training in pediatric psycho-oncology at St. Jude Children’s Research Hospital, where she completed a two-year post-doctoral fellowship and then served as an attending psychologist and faculty member for six years. Dr. Allen’s area of clinical specialty and expertise is in hematology/oncology/stem cell transplant. Within psycho-oncology, Dr. Allen’s primary clinical interests include pain management and somatic concerns, working with adolescent and young adult (AYA) patients, adjustment to diagnosis/transition off-therapy/survivorship, and addressing health behaviors. Dr. Allen is actively involved in collaborative research, provides supervision to psychology trainees interested in hematology/oncology, and serves on national and international committees to continue to advance the care and research for youth with chronic medical conditions. She is serves as a supervisor for the hematology/oncology rotation.

Rebecca H. Foster, Ph.D., is a Pediatric Psychologist at St. Louis Children’s Hospital and a Clinical Associate Professor of Pediatrics at the Washington University School of Medicine. She received her Ph.D. in Counseling Psychology from Virginia Commonwealth University and completed her postdoctoral fellowship at St. Jude Children’s Research Hospital. Her primary area of specialization is in pediatric hematology/oncology/stem cell transplant. Her clinical, research, and teaching interests include adolescent and young adult psycho-oncology, childhood cancer survivorship, family and sibling well-being in the context of medical and genetic complexities, and palliative and end of life care. She is the primary supervisor for the hematology/oncology rotation and the quality improvement/research seminar.

Darci Klein, Ph.D., is a Pediatric Psychologist at St. Louis Children’s Hospital and a Clinical Assistant Professor of Pediatrics at the Washington University School of Medicine. Dr. Klein specializes in the assessment and treatment of children, adolescents, and young adults with acute or chronic medical conditions, including oncology and hematological disorders as well as other chronic illnesses. Her clinical interests include individual and family adjustment to diagnosis/treatment, grief and loss, anxiety and mood concerns related to medical conditions, and Parent-Child Interaction Therapy with medically complex children. She serves as a supervisor for outpatient psychotherapy. 

Kendra Krietsch Ph.D.,is a Pediatric Psychologist at St. Louis Children’s Hospital and a Clinical Assistant Professor of Pediatrics at the Washington University School of Medicine. Dr. Krietsch specializes in the treatment of pediatric sleep disorders. She enjoys working with youth of all ages, and especially those with complex medical or neurodevelopmental conditions. Dr. Krietsch uses evidence-based behavioral interventions to treat sleep concerns like insomnia (problems with falling and staying asleep), circadian rhythm disorders (disruptions in the body’s internal sleep/wake clock), disorders of excessive daytime sleepiness (hypersomnia, narcolepsy), and parasomnias (nightmares, sleep terrors, and bed-wetting). She also helps families overcome barriers to their children using medical treatments (like CPAP) for their sleep disordered breathing. She serves as supervisor for the Sleep elective rotation. 

Alex Maixner, Ph.D., (she/her/hers) is a pediatric psychologist and Clinical Assistant Professor of Pediatrics at the Washington University School of Medicine.  She received her Ph.D. in clinical psychology from St. Louis University. She currently serves as the primary psychologist at the Washington University St. Louis Children’s Hospital Transgender Center as well as the Differences of Sex Development Clinic. Her primary clinical interests include LGBTQ+ youth, the impact of race and racism on mental health, treatment of anxiety and concerns related to adherence or adjustment to medical conditions. Dr. Maixner is the primary supervisor for the Gender Health rotation.  

Cathy Pike, Ph.D. is a Pediatric psychologist at St. Louis Children’s Hospital and is an Assistant Professor of Clinical Pediatrics at Washington University School of Medicine. She received her Ph.D. in Clinical Psychology from Saint Louis University. She completed her pre-doctoral internship at Nationwide Children’s Hospital and completed her post-doctoral fellowship at St. Louis Children’s Hospital. Dr. Pike’s primary areas of specialization are in pain management and somatic symptom disorders, including Functional Neurological Symptom Disorder (FNSD). Her clinical interests include multidisciplinary pain rehabilitation, functional restoration for pain, somatic symptom disorders, adherence to medical regimens, and adjustment to and coping with acute and chronic illness. She provides supervision for the Pain rotation and outpatient psychotherapy. 

Megan Shelton, Ph.D. is a Pediatric Psychologist at St. Louis Children’s Hospital and is an Assistant Professor of Clinical Pediatrics at the Washington University School of Medicine. She received her Ph.D. in Clinical Psychology from Saint Louis University. Dr. Shelton's primary areas of specialization are chronic pain conditions, functional neurological symptom disorder, somatic symptom disorders, obesity care, adolescent bariatric surgery, and sports medicine. Her clinical and teaching interests include multidisciplinary pain rehabilitation, functional restoration for pain, somatic symptom disorders, and sports injuries, adherence to health behaviors, pre-surgical evaluations, and adjustment to and coping with acute and chronic illness. She serves as a supervisor for the hematology/oncology rotation and the primary supervisor of the quality improvement/research seminar.

Kimberly Sirl, Ph.D. is a Child and Adolescent Psychologist at St. Louis Children’s Specialty Care Center and a Assistant Instructor in Clinical Pediatrics at the Washington University School of Medicine. She received her Ph.D. in Clinical Psychology at Wayne State University.  She specializes in diagnostic assessment and cognitive-behavioral therapy with children ages 4-14 years. She treats children and families with a variety of concerns including difficulties regulating behavior, attention problems, anger, anxiety, mood, and Tourette’s Disorder. Dr. Sirl works closely with many community pediatricians and the Movement Disorders Clinic at Washington University School of Medicine.

Kyleigh K. Skedgell, Ph.D. is a Pediatric Psychologist at St. Louis Children’s Hospital and Assistant Professor of Clinical Pediatrics at Washington University. She received her Ph.D. in Clinical Psychology from the University of Nevada, Las Vegas and completed her pre-doctoral internship and post-doctoral fellowship at Baylor College of Medicine/Texas Children’s Hospital. Dr. Skedgell is currently the primary inpatient consultation and liaison psychologist for the general medical service at St. Louis Children’s Hospital. She specializes in interdisciplinary collaboration with medical and psychosocial teams to provide evidence-based assessment, consultation, and intervention to youth with acute and chronic medical conditions. Dr. Skedgell also provides brief assessment and intervention services to youth with allergic diseases and comorbid anxiety on an outpatient basis. She is the primary supervisor for the medical consultation-liaison rotation. 

Suzanne M. Thompson, Ph.D. is a Pediatric Psychologist at St. Louis Children’s Hospital and an Instructor in Clinical Pediatrics at the Washington University School of Medicine. She received her Ph.D. in Clinical Psychology from the University of Houston. Dr. Thompson's primary areas of specialization are in the areas of Inflammatory Bowel Disease, chronic pain conditions, and somatic symptom disorders, including Functional Neurological Symptom Disorder (FNSD).  She specializes in consultation and psychotherapy with emotional and functional problems with chronically ill children and adolescents.  Her clinical interests include multidisciplinary pain rehabilitation, functional restoration for pain, somatic symptom disorders, and adjustment to and coping with chronic illness. She provides supervision for the Pain rotation and outpatient psychotherapy.