A photo of Michael Mellon.

Pediatric Psychologist, Clinical, Behavioral Medicine & Clinical Psychology

Professor, UC Department of Pediatrics



Board Certified

My Biography & Research


As a pediatric psychologist, I work with children to help them adjust to chronic illnesses such as inflammatory bowel disease (IBD), celiac disease and congenital anorectal malformations. I also help kids with urinary and fecal incontinence and toilet training resistance.

I have always been interested in serving children and their families and helping them adapt to difficult conditions. I offer behavior therapy and acceptance and commitment therapy (ACT) to provide them with skills that can lead to greater psychological flexibility. My goal is to help my patients learn to live a meaningful life in spite of dealing with difficult medical, behavioral and emotional circumstances.

I am actively involved in the O’Grady Pediatric Psychology Residency Program, and I supervise two residents per year on a six-month gastrointestinal training rotation. I was nominated as Teacher of the Year by the 2018-2019 class.

In my spare time, I enjoy working as a “pretend farmer” on my property in eastern Tennessee with my wife and our dog. I have fun driving my tractor as we attempt to grow pumpkins, watermelon and sweet potatoes.

Clinical Interests

Acceptance and Commitment Therapy (ACT) application to children with IBD and their families

Research Interests

The development of child and parent self-report measures of experiential avoidance and cognitive fusion related to IBD

Academic Affiliation

Professor, UC Department of Pediatrics


Behavioral Medicine, Inflammatory Bowel Disease IBD, Clinical Psychology

Blog Posts

Helping Kids with Gastrointestinal Disorders Cope and Return to School

BlogRare and Complex Conditions

Helping Kids with Gastrointestinal Disorders Cope and Return to School

By Michael Mellon, PhD10/17/2019

My Locations

My Education

PhD: University of Memphis, Memphis, TN, 1993.

Residency: University of Mississippi Medical Center, Jackson, MS, 1992.

Certification: American Board of Professional Psychology, Child and Adolescent Clinical Psychology, 2009.

My Publications

Psychiatric Disorders in Mothers of Children with Attention-Deficit/Hyperactivity Disorder: A Population-Based Perspective. Homan, KJ; Barbaresi, WJ; Mellon, MW; Weaver, AL; Killian, JM; Lucchetti, AR; Katusic, SK. Journal of Child and Family Studies. 2019; 28:1042-1051.

Development of the Friendships and Social Skills Test (FASST): A Parent Report Measure. Whiteside, SP H; McCarthy, DM; Sim, LA; Biggs, BK; Petrikin, JE; Mellon, MW. Journal of Child and Family Studies. 2016; 25:1777-1788.

Acceptance and commitment therapy (ACT) to foster resilience in pediatric chronic illness. Ernst, MM; Mellon, MW. Child and Adolescent Resilience Within Medical Contexts: Integrating Research and Practice. : Springer International Publishing; Springer International Publishing; 2016.