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The Sidney Kimmel Comprehensive Cancer Center

Pediatric Oncology

Our Experts

The Pediatric Oncology Division at the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins includes a wide array of medical professionals and laboratory scientists. Many of our experts are nationally and internationally recognized as leaders in the research and treatment of pediatric cancer.

As a leader in pediatric cancer research, we are dedicated to making new discoveries to improve the lives of children with cancer in Maryland, the nation, and around the world. We are at the forefront of developing new treatments and designing clinical trials for better outcomes for our patients.

Pediatric Oncology Director

Christine Pratilas, MD

  • Vice Chair, Pediatric Oncology
  • Professor of Oncology

Expertise: Pediatric Medical Oncology, Sarcoma and Connective Tissue Medical Oncology

Neuro-Oncology Director

Kenneth Cohen, MD MBA

  • Clinical Director Pediatric Oncology
  • Professor of Oncology

Expertise: Pediatric Medical Oncology, Neuro-Oncology, Pediatric Neuro-Oncology

Bone Marrow Transplant Director

Kenneth R. Cooke, MD

  • Herman and Walter Samuelson Professor of Oncology
  • Professor of Oncology

Expertise: Pediatric Medical Oncology, Pediatric Cellular Therapy

Sarcoma Director

Nicolas Llosa, MD

  • Director, Pediatric Sarcoma Program
  • Associate Professor of Oncology

Expertise: Pediatric Medical Oncology, Sarcoma and Connective Tissue Medical Oncology

Leukemia Director

Stacy L. Cooper, MD MEd

  • Director, Pediatric Hematology/Oncology Fellowship Program

Expertise: Hematologic Malignancy, Pediatric Hematologic Malignancy, Lymphoma, Pediatric Medical Oncology, Leukemia

Primary Location: Johns Hopkins Children's Center, Baltimore, MD

Leukemia and Lymphoma Experts

  • Stacy L. Cooper, MD MEd

    • Director, Pediatric Hematology/Oncology Fellowship Program
    • Associate Professor of Oncology

    Expertise: Hematologic Malignancy, Pediatric Hematologic Malignancy, Lymphoma, Pediatric Medical Oncology, Leukemia

  • Alan David Friedman, MD

    • King Fahd Professor of Pediatric Oncology
    • Professor of Oncology

    Expertise: Pediatric Medical Oncology, Leukemia

  • Kristen Schratz, MD

    • Assistant Professor of Oncology

    Expertise: Hematologic Malignancy, Pediatric Hematologic Malignancy, Anemia and Bone Marrow Disorders, Cancer Genetics, Leukemia

  • Donald Small, MD PhD

    • Kyle Haydock Professor of Oncology
    • Professor of Oncology

    Expertise: Pediatric Medical Oncology, Pediatric Hematology Oncology

  • Yang Ding, MD

    • Assistant Professor of Oncology

    Expertise: Pediatric Hematology Oncology, Pediatric Hematologic Malignancy, Pediatric Medical Oncology, Leukemia

Bone Marrow Transplant Experts

  • Challice Lee Bonifant, MD PhD

    • Associate Professor of Oncology

    Expertise: Pediatric Medical Oncology, Pediatric Cellular Therapy

  • Allen R. Chen, MD PhD MHS

    • Vice Chair for Quality, Safety & Service
    • Associate Professor of Oncology

    Expertise: Cellular Therapy, Pediatric Medical Oncology, Pediatric Cellular Therapy

  • Kenneth R. Cooke, MD

    • Herman and Walter Samuelson Professor of Oncology
    • Professor of Oncology

    Expertise: Pediatric Medical Oncology, Pediatric Cellular Therapy

  • Yiouli Ktena, MD

    • Assistant Professor of Oncology

    Expertise: Pediatric Medical Oncology, Pediatric Cellular Therapy

  • Heather Symons, MD MHS

    • Clinical Director, Pediatric Blood and Marrow Transplant
    • Associate Professor of Oncology

    Expertise: Pediatric Medical Oncology, Pediatric Hematology Oncology

  • Elias Zambidis, MD PhD

    • Professor of Oncology

    Expertise: Pediatric Medical Oncology, Pediatric Cellular Therapy

Sarcoma Experts

  • Brian Ladle, MD PhD

    • Assistant Professor of Oncology

    Expertise: Pediatric Medical Oncology, Pediatric Hematology Oncology, Sarcoma and Connective Tissue Medical Oncology

  • Kathryn Lemberg, MD PhD

    • Assistant Professor of Oncology

    Expertise: Pediatric Medical Oncology, Sarcoma and Connective Tissue Medical Oncology

  • Nicolas Llosa, MD

    • Director, Pediatric Sarcoma Program
    • Associate Professor of Oncology

    Expertise: Pediatric Medical Oncology, Sarcoma and Connective Tissue Medical Oncology

  • Patience I. Odeniyide, MD PhD

    • Adjunct Assistant Professor in Oncology

    Expertise: Pediatric Medical Oncology, Sarcoma and Connective Tissue Medical Oncology

  • Christine Pratilas, MD

    • Vice Chair, Pediatric Oncology
    • Professor of Oncology

    Expertise: Pediatric Medical Oncology, Sarcoma and Connective Tissue Medical Oncology

  • Lindy Zhang, MD PhD

    • Assistant Professor of Oncology

    Expertise: Pediatric Medical Oncology, Cancer Genetics, Sarcoma and Connective Tissue Medical Oncology

Brain Tumor/Neuro-Oncology Experts

  • Kenneth Cohen, MD MBA

    • Clinical Director Pediatric Oncology
    • Professor of Oncology

    Expertise: Pediatric Medical Oncology, Neuro-Oncology, Pediatric Neuro-Oncology

  • Michael A. Koldobskiy, MD PhD

    • Assistant Professor of Oncology

    Expertise: Pediatric Medical Oncology, Neuro-Oncology

  • Eric Raabe, MD PhD

    • Associate Professor of Oncology

    Expertise: Ocular Oncology, Pediatric Neuro-Oncology, Pediatric Medical Oncology, Neuro-Oncology

  • Robyn D. Gartrell, MD MS BS

    • Assistant Professor of Oncology

    Expertise: Pediatric Neuro-Oncology, Pediatric Hematology Oncology, Pediatric Medical Oncology, Neuro-Oncology

Pediatric Radiation Oncology

  • Anita Mahajan, MD

    • Director, Johns Hopkins Pediatric Radiation Oncology Research Center at Sibley Memorial Hospital
    • Professor (PAR) of Radiation Oncology and Molecular Radiation Sciences

  • Matthew M. Ladra, MD MPH

    • Director, Pediatric Radiation Oncology, Johns Hopkins Kimmel Cancer Center at Sibley Memorial Hospital
    • Associate Professor of Clinical Radiation Oncology and Molecular Radiation Sciences

    Expertise: Radiation Oncology

  • Sahaja Acharya, MD

    • Director, Pediatric Radiation Oncology
    • Assistant Professor of Radiation Oncology and Molecular Radiation Sciences

    Expertise: Radiation Oncology

Pediatric Surgical Oncology

  • Jonathan Walsh, MD

    • Residency Program Director, Johns Hopkins Otolaryngology-Head and Neck Surgery
    • Associate Professor of Otolaryngology-Head and Neck Surgery

    Expertise: Pediatric Head and Neck Surgery, Pediatric Endocrine Surgery, Pediatric Otolaryngology, Otolaryngology

  • Alan R. Cohen, MD

    • Director, Johns Hopkins Pediatric Neurosurgery
    • Professor of Neurological Surgery

    Expertise: Brain Tumor Neurosurgery, Pediatric Neurosurgery

  • Charlotte Wu, MD

    • Residency Program Director
    • Assistant Professor of Urology

    Expertise: Pediatric Urology

Pediatric Cancer Survivorship Program

Kathy Ruble, CRNP

  • Director, Life Clinic and Leukemia Survivorship Program
  • Associate Professor of Oncology

Expertise: Pediatric Medical Oncology

Pediatric Cancer Predisposition Program

  • Christine Pratilas, MD

    • Vice Chair, Pediatric Oncology

    Expertise: Pediatric Medical Oncology, Sarcoma and Connective Tissue Medical Oncology

    Primary Location: Johns Hopkins Children's Center, Baltimore, MD

  • Brian Ladle, MD PhD

    Expertise: Pediatric Medical Oncology, Pediatric Hematology Oncology, Sarcoma and Connective Tissue Medical Oncology

    Primary Location: Johns Hopkins Children's Center, Baltimore, MD

  • Kristen Schratz, MD

    Expertise: Hematologic Malignancy, Pediatric Hematologic Malignancy, Anemia and Bone Marrow Disorders, Cancer Genetics, Leukemia

    Primary Location: Johns Hopkins Children's Center, Baltimore, MD

  • Lindy Zhang, MD PhD

    Expertise: Pediatric Medical Oncology, Cancer Genetics, Sarcoma and Connective Tissue Medical Oncology

    Primary Location: Johns Hopkins Children's Center, Baltimore, MD

Christy H. Smith, Sc.M., C.G.C.

Genetic Counselor

Christy Smith

Click the link below to learn more about the Pediatric Cancer Predisposition Clinic.

Click Here To Learn More

Read more about Johns Hopkins Pediatric Oncology milestones in pediatric cancer Research and Clinical Trials.