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Johns Hopkins Children's Center

Our Team

Faculty

  • Maria Oliva-Hemker, MD

    • Vice Dean for Faculty
    • Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Kevin T. Cesa, MD

    • Director, Pediatric GI Fellowship Program
    • Assistant Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Tony L. Guerrerio, MD PhD

    • Director, Very Early Onset Inflammatory Bowel Disease Clinic
    • Associate Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Wikrom Karnsakul, MD

    • Director, Pediatric Liver Center
    • Associate Professor of Pediatrics

    Expertise: Pediatric Hepatology, Pediatric Transplant Hepatology, Pediatric Gastroenterology

  • Shaija Kutty, MBBS

    • Director, Gastrointestinal Functional Treatment Center (GIFT)
    • Assistant Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Sarah Bronwyn Lowry Adamitis, MD

    • Assistant Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Gihan Naguib, MBCHB

    • Assistant Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Kenneth Ng, DO

    • Director of Endoscopy
    • Assistant Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Ann Scheimann, MD

    • Medical Advisor, Weight Management Program
    • Professor of Pediatrics

    Expertise: Pediatric Gastroenterology

  • Kathryn K. Smith, MD

    • Medical Director, Pediatric Liver Transplantation
    • Assistant Professor of Pediatrics

    Expertise: Gastroenterology

Advance Practice Nurses

Mary Kay Alford, M.S.N., R.N., C.P.N.P.

Pediatric Nurse Practitioner
Medical Coordinator, Pediatric Liver Center

Lynn Mattis, M.S.N., R.N.

Clinical Nurse Specialist - Nutrition Center

Kristin Norko, M.S.N., C.P.N.P.-P.C.

Pediatric Nurse Practitioner Medical Coordinator, Inflammatory Bowel Disease Center

Lisa Santo Domingo, D.N.P., MSN, R.N.,C.P.N.P.-PC

Pediatric Nurse Practitioner
Medical Director, Pediatric Multidisciplinary Chronic Constipation Clinic 

Tina Zachariah Thomas, M.S.N., C.P.N.P.

Post-transplant Nurse Practitioner
Medical Coordinator, Pediatric Liver Center