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Patrick Leavey graduated from the Royal College of Surgeons in Ireland in 1986. He spent 4 years in Ireland as a junior house officer (Internal Medicine and Pediatrics), 2 years at Princess Margaret Hospital in Perth, Western Australia as a pediatric registrar and then came to the US to do his pediatric hematology/oncology fellowship at The Children’s Hospital Denver and University of Colorado Health Sciences Center in 1992. Dr. Leavey worked in the lab of Daniel Ambruso, M.D. for 4 years on projects related to the influence of G-CSF on granulocyte function and the exploration and identification of a novel neutrophil cytosolic protein.


Dr. Leavey joined the pediatric faculty at UT Southwestern Medical Center in 1998 where he is currently an Associate Professor of Pediatrics and a Pediatric Oncologist at the Children’s Medical Center (CMC) Dallas.


During his years of training Dr. Leavey became a member of the Royal College of Physicians of Ireland, a Fellow of the Royal Australasian College of Physicians and a Diplomate of Child Health from the National University of Ireland. He submitted a thesis based on his work in the lab and was granted a Doctorate in Medicine from the National University of Ireland. He is also subspecialty board certified in Pediatric Hematology/Oncology by the American Board of Pediatrics.


Currently Dr. Leavey holds several leadership positions both regionally and nationally in areas of education, research and administration. He is the Associate Medical Director for Clinical Affairs, of the Center for Center and Blood Disorders at Children’s Medical Center Dallas; the Fellowship training Director at the Division of Pediatric Hematology/Oncology at UT Southwestern Medical Center Dallas, the Chair for the Training Committee at the American Society of Pediatric Hematology/Oncology and a member of the Executive Committee of the Council of Pediatric Subspecialties; and the Co-Chair for the international AEWS1031 study for newly diagnosed patients with non-metastatic Ewing Sarcoma at the Children’s Oncology Group.


Medical School Royal College of Surgeons (1986)
Internship Beaumont Hospital-Dublin, Ireland (1987), General Surgery
Residency St. Vincents Hospital - Dublin Ireland (1989), Internal Medicine
Fellowship University of Colorado Health Sciences Center (1996), Pediatric Hematology/oncology
Residency Children's Hospital of Denver (1998), Pediatrics

Specialty Areas

Clinical Interest

  • Pediatric Sub-Specialty Educations
  • Sarcomas

Research Interest

  • Identification of depression and anxiety in children with cancer.
  • Pediatric Hematology/Oncology Education
  • Study of children with primary cancers of bone with an emphasis on protocol development in patients with osteogenic sarcoma and Ewing's sarcoma.


Featured Publications LegendFeatured Publications

How many physicians do we need? A benchmark for pediatric hematology/oncology.

Leavey PJ Pediatr Blood Cancer 2012 Nov

How many physicians do we need? A Benchmark for Pediatric Hematology/Oncology

Leavey,P.J. Pediatr Blood and Cancer 2012 epub ahead of print

Predictive value of interleukin-5 and monocyte chemotactic protein-1 (MCP-1) for bactermia in children with febrile neutropenia.

Victor M Aquino VM, Cost C, Gomez A, Bowers DC, Ramilo O, Ahmad N, Winick N, Leavey PJ. J Pediatr Hematol Oncol 2012 34 6 e241-5

KAI-1 expression in pediatric high-grade osteosarcoma.

Leavey PJ, Timmons C, Frawley W, Lombardi D, Ashfaq R Pediatr. Dev. Pathol. 2006 May-Jun 9 3 219-24

The Prevalence and Use of Anti-depressant Medication (ADM) in Pediatric Cancer Patients.

Portteus A, Ahmad N, Tobey D and Leavey P. J Child Adolesc Psychopharmacol 2006 16/4 467-473

Honors & Awards

  • Faculty Teaching Award
    2008-2009 UT Southwestern and Children’s Medical Center Faculty Teaching Award (2009)
  • Medical Achievement Award
    Little Mo Award - awarded by Wipe out Kids Cancer (2008)
  • Member, Society for Pediatric Research
    Elected to the Society for Pediatric Research (2006)
  • Achievement Award
    ’Gift of Giving Back Award’ first such award given by the Clayton Dabney Foundation for Kids with Cancer (2005)
  • 2002, 2010 and 2011 D Magazine
    Voted to be included as one of Dallas ’Best Pediatricians’ by physicians, nurses and other medical professionals (2002)

Professional Associations/Affiliations

  • Society for Pediatric Research (2006)
  • American Society of Clinical Oncology
  • American Society of Pediatric Hematology/Oncology
  • Children’s Oncology Group
  • Connective Tissue Oncology Society
  • Dallas County Medical Society and Texas Medical Association