• Physician Profile

    Karen J. Marcus, MD

    Karen J. Marcus, MD

    Top Doctor

    Chief, Division of Radiation Oncology, Boston Children's Hospital
    Institute Physician

    Associate Professor of Radiation Oncology, Harvard Medical School


    Radiation Oncology
    Pediatric Stem Cell Transplant
    Pediatric Brain Tumors
    Pediatric Radiation Oncology
    Pediatric Hematologic Malignancies

    Office phone: 617-355-8399
    Appointment phone: 888-733-4662 (new); 617-632-3270 (established)
    Fax: 617-730-0211
    Email: kmarcus@lroc.harvard.edu

    Preferred contact method: office phone
    Request an appointment


    Radiation Oncology


    Pediatric radiation oncology, Neuroblastoma, Pediatric sarcoma and bone tumors, Neuro-oncology, Hematopoietic stem cell transplantation, Hodgkin disease, Late effects of treatment in children

    Boston Children's Hospital
    300 Longwood Ave.
    Boston, MA 02115


    Board Certification
    Therapeutic Radiology, 1989
    Pediatrics, 1985

    National Cancer Institute, Pediatric Oncology, 1986

    Harvard Joint Center for Radiation Therapy, Radiation Therapy, 1989
    Children's Hospital of Philadelphia, Pediatrics, 1983

    Medical School
    University of Maryland School of Medicine, 1980

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Request an Appointment

  • For adults:
    877-442-3324 (877-442-DFCI)
  • For children:
    888-733-4662 (888-PEDI-ONC)
  • Or complete the online form.

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