A photo of Claire M. Peterson.

Claire M. Aarnio-Peterson, PhD

  • Pediatric Psychologist, Division of Behavioral Medicine and Clinical Psychology
  • Pediatric Psychologist, Eating Disorder Program
  • Associate Professor, UC Department of Pediatrics



Claire M. Aarnio-Peterson, PhD, is an assistant professor in Behavioral Medicine and Clinical Psychology at Cincinnati Children's Hospital Medical Center within the University of Cincinnati College of Medicine, Department of Pediatrics. She is currently a clinical psychologist within the multi-disciplinary eating disorders team. She specializes in the assessment and evidence-based treatment of eating disorders including family-based therapy (FBT) for anorexia nervosa. She is also trained in DBT and has recently piloted a DBT skills group. Her research interests include personality traits, self-harm, and eating disorders, the treatment of eating disorders within the context of chronic illness (e.g., type 1 diabetes), eating disorders within the transgender population, and evaluating treatment interventions to improve outcomes in adolescents with eating disorders.

BA: University of Kentucky, Lexington, KY, 2005.

MA: University of Dayton, Dayton, OH, 2007.

PhD: University of Georgia, Athens, GA, 2014.

Internship: University of North Carolina-Chapel Hill, Chapel Hill, NC, 2014.

Fellowship: Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 2015.


Pediatric eating disorders; dialectical behavioral therapy; LGBTQ population

Services and Specialties

Behavioral Medicine and Clinical Psychology, Behavioral Medicine

Research Areas

Behavioral Medicine

Insurance Information

Cincinnati Children's strives to accept a wide variety of health plans. Please contact your health insurance carrier to verify coverage for your specific benefit plan.

View Insurance Information


Higher admission and rapid readmission rates among medically hospitalized youth with anorexia nervosa/atypical anorexia nervosa during COVID-19. Matthews, A; Kramer, RA; Peterson, CM; Mitan, L. Eating Behaviors. 2021; 43:101573.

Modifiable factors associated with mental health symptoms in siblings of adolescents with anorexia nervosa. Matthews, A; Peterson, CM; Lenz, K; Kramer, RA; Mara, C; Copps, E; Mitan, L. Eating and Weight Disorders: studies on anorexia, bulimia and obesity. 2021; 26:1757-1765.

The relationship of the UPPS model of impulsivity on bulimic symptoms and non-suicidal self-injury in transgender youth. Peterson, CM; Mara, CA; Conard, LA E; Grossoehme, D. Eating Behaviors. 2020; 39:101416.

Exploring the Eating Disorder Examination Questionnaire in treatment seeking transgender youth. Peterson, CM; Toland, MD; Matthews, A; Mathews, S; Thompson, F; Conard, LA E. Psychology of Sexual Orientation and Gender Diversity. 2020; 7:304-315.

Dialectical behavioral therapy skills group as an adjunct to family-based therapy in adolescents with restrictive eating disorders. Peterson, CM; Van Diest, AM K; Mara, CA; Matthews, A. Eating Disorders. 2020; 28:67-79.

Adolescent males with atypical anorexia nervosa and premorbid obesity: three case reports. Matthews, A; Peterson, CM; Mitan, L. Eating and Weight Disorders: studies on anorexia, bulimia and obesity. 2019; 24:963-967.

From the Blog

High Rates of Suicide and Self-Harm Among Transgender Youth
Mind Brain Behavior

High Rates of Suicide and Self-Harm Among Transgender Youth

Claire M. Aarnio-Peterson, PhD6/29/2019

Transgender Youth and Suicide: A Call for Education and Understanding
Blog Child Development and Behavior

Transgender Youth and Suicide: A Call for Education and Understanding

By Claire Peterson, PhD9/16/2016

Patient Ratings and Comments

All patient satisfaction ratings and comments are submitted by actual patients and verified by a leading independent patient satisfaction company, NRC Health. Patient identities are withheld to ensure confidentiality and privacy. Only those providers whose satisfaction surveys are administered through Cincinnati Children’s Hospital Medical Center are displayed. Click here to learn more about our survey

Overall Patient Rating