Kelley E. Deaton, PNP

Karen O'Brien is a pediatric nurse practitioner in the Gastroenterology and Nutrition department at MUSC. She earned her master's degree in nursing in pediatric acute and chronic care from the University of Pennsylvania in Philadelphia in 1993. She is board certified as a primary care pediatric nurse practitioner by the American Nurses Credentialing Center. Karen has many years of experience working as a primary care pediatric nurse practitioner and now specializes in pediatric gastroenterology. She is a member of the Association of Pediatric Gastroenterology and Nutrition Nurses. Karen takes care of patients with general gastrointestinal disorders including; celiac disease, failure to thrive, functional gastrointestinal disorders, constipation, encopresis, gastroesophageal reflux, eosinophilic esophagitis, and childhood obesity. She has a particular interest in pediatric nutrition.

Leslie Allen Lane, MSN, APRN is a certified pediatric nurse practitioner specializing in pediatric gastroenterology in Mount Pleasant, SC. With clinical interests in constipation, feeding difficulties, and gastroesophageal reflux disease, Leslie provides expert care for children's gastrointestinal health. Offering services at multiple locations including MUSC Children's Health Specialty Care, Leslie Lane is dedicated to providing compassionate and comprehensive care for her patients. Accepting a wide range of insurances, Leslie Lane is committed to promoting children's health and well-being. Generated from the website

Cheryl Kerrigan is a pediatric nurse practitioner in the Pediatric Pulmonary Division at MUSC. She earned her master’s degree in nursing from the University of Virginia in 2002 and is certified as a pediatric nurse practitioner by the Pediatric Nursing Certification Board. Cheryl has worked in pediatric pulmonary at MUSC since 2003 and is also adjunct faculty in the College of Nursing. Cheryl takes care of children with a variety of pulmonary disorders, including asthma, recurrent pneumonia, bronchopulmonary dysplasia, and cystic fibrosis. She has a special clinical interest in newborn screening for cystic fibrosis and helping adolescents transition to adult care.