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Education & Training

  • Fellowship Program, Pediatric Proton Therapy, 2014
    Massachusetts General Hospital
  • Residency Program, Radiation Oncology, 2012
    University of Washington Medical Center
  • Internship Program, Internal Medicine, 2008
    St. Mary's Medical Center
  • MD, 2007
    Tulane University School of Medicine
  • BA, 2000
    Princeton University

Board Certifications

  • American Board of Radiology

Awards & Recognition

  • Top Doctors Washingtonian (2021, 2020, 2019)

National Provider ID: 1164674214


Matthew Ladra, M.D., M.P.H., is a pediatric radiation oncologist that leads the Radiation Oncology Program, which is a joint clinical collaboration between Children’s National, Johns Hopkins and Sibley Memorial Hospital. This clinical collaboration provides the highest level of multidisciplinary care for the region’s pediatric oncology patients.

Dr. Ladra is a fellowship trained pediatric radiation oncologist, having completed a two-year program at Massachusetts General Hospital, and his practice and research will focus entirely on treating children. Dr. Ladra served as the director of pediatric radiation oncology at the Provision Center for Proton Therapy in Knoxville, Tennessee. His research interests focus on pediatric rhabdomyosarcoma and proton therapy, and he has published numerous peer-reviewed articles and book chapters on these subjects.

Dr. Ladra sees patients at Sibley Memorial Hospital and the Children’s National main campus.