Julie Margenthaler, MD, FACS

Julie Margenthaler, MD, FACS


Primary Academic Title

Professor of Surgery, Division of General Surgery, Section of Endocrine and Oncologic Surgery, Washington University School of Medicine

Clinical Expertise

As a member of our breast cancer specialist team, Dr. Margenthaler cares for patients diagnosed with breast cancer through treatment and recovery. Learn more about how Dr. Margenthaler and Siteman approach breast cancer diagnosis and staging, treatment and recovery.

Breast surgery

Research Interest

Identification of minimally invasive approaches to breast cancer staging using imaging combined with molecular techniques; the identification of non-BRCA genes responsible for the development of breast cancer in young women under the age of 40; and the design of novel gene-specific approaches to breast cancer treatment.


  • 1997: MD, Southern Illinois University, Springfield


  • 1997 - 1999: Resident, general surgery, Saint Louis University
  • 1999 - 2002: Research fellow, Washington University, St. Louis
  • 2002 - 2005: Resident, general surgery, Washington University
  • 2005 - 2006: Fellow, surgical oncology, Washington University

Board Certification

  • 2006: American Board of Surgery, General Surgery

Selected Research Publications

Lymph Node Positivity: Indication for Preoperative MRI?
  • Kennard K, Israel I, Naaseh A, [...] Margenthaler J
  • Ann Surg Oncol 2023
ASO Author Reflections: Lymph Node Positivity: Indication for Preoperative MRI?
  • Kennard K, Israel I, Margenthaler J
  • Ann Surg Oncol 2023
This is the Moment….
  • Margenthaler JA
  • Ann Surg Oncol 2022
Impact of consensus guidelines for breast-conserving surgery in patients with ductal carcinoma in situ.
  • Tremelling A, Aft RL, Cyr AE, [...] Margenthaler JA
  • Cancer Rep (Hoboken) 2022
Assessment of Screening Mammography Recommendations.
  • Baron PL, Margenthaler JA, Dietz JR
  • JAMA Intern Med 2021

Contact Information

  • Washington University Medical Campus

    4921 Parkview Place
    Saint Louis, MO 63110

  • West St. Louis County

    Medical Office Building 2, 10 Barnes West Drive
    Creve Coeur, MO 63141

Phone Numbers

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