Karen Obrien, MSN

Accepting New Patients

Accepting New Patients

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  • Pediatric Nurse Practitioner
Degree MSN
School University of Pennsylvania
Board Certification
  • American Nurses Credentialing Center: Pediatric Nursing
  • Pediatric Gastroenterology
Accepts New Patients Yes

New Patients

843-876-1444 843-876-1444

To request an appointment call our representatives at 843-792-1414

Returning Patients


MUSC Children's Health at Tidelands
4040 Highway 17 Bypass, Suite 306
Murrells Inlet, SC 29576
Map & Directions
MUSC Children's Health at Beaufort
1055 Ribaut Road, 20A
Beaufort, SC 29902
Map & Directions
Children's Health Specialty Care Summerville
4330 Ladson Road
Summerville, SC 29485
Map & Directions
Children's Health Specialty Care Mount Pleasant
2705 Highway 17, Suite 100
Mount Pleasant, SC 29466
Map & Directions


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.