Kathy Weilbaecher.jpg

Katherine N. Weilbaecher, MD

Associate Professor
Department of Medicine
Oncology Division
Medical Oncology Section
Molecular Oncology Section
Department of Cell Biology & Physiology

Clinical Interests

  • Breast cancer

Research Interests

  • Skeletal metastasis
  • Beta 3 integrin
  • Osteoclast biology
  • Transcription factors


  • 314-454-8858 (tel)
  • 314-454-8979 (fax)
  • Room 806, McDonnell Sciences Building (office)
  • Washington University School of Medicine
    Division of Oncology
    Campus Box 8069
    660 South Euclid Avenue
    St. Louis, MO 63110


1983-1987 BA Magna cum Laude, Harvard University, Cambridge, MA
1987-1992 MD, Stanford University School of Medicine, Palo Alto, CA
Post-graduate Training
1992-94 Intern and Resident in Medicine, Assistant Clinical Instructor in Medicine, Stanford University Hospital, Stanford, CA
1994-98 Fellow in Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
1994-98 Clinical Fellow in Medicine, Brigham and Women's Hospital, Boston, MA
Academic Positions
1998-2000 Instructor in Medicine, Harvard Medical School, Boston, MA
2000-2008 Assistant Professor of Medicine, Washington University, St. Louis, MO
2000-2007 Assistant Professor of Pathology & Immunology, Washington University, St. Louis, MO
2003-2008 Assistant Professor of Cell Biology & Physiology, Washington University, St. Louis, MO
2008-present Associate Professor of Medicine, Washington University, St. Louis, MO
2008-present Associate Professor of Cell Biology & Physiology, Washington University, St. Louis, MO
University Committees
2000-present Cellular Proliferation Program, Siteman Cancer Center
2000-present Breast Oncology Focus Group, Siteman Cancer Center
2002-present Oncology Fellowship Protocol Committee
2006-present MD/MA Degree Granting Committee
2006-present LCME Accreditation Committee
2007-present WUSM Research Planning for Cancer Committee
Board Certification
1995-2005 Internal Medicine
2009 Medical Oncology
Honors & Awards
1986 Radcliffe Junior Science Prize
1992 Dean's Award for Research, Stanford Medical School
1994 Housestaff Clinical Teaching Award, Stanford Medical School
2008 American Society for Clinical Investigation
Peer-review Committees
2003-present Ad hoc reviewer, NIH: Pathology B Study Section, TPM Study Section, TMEN Study Section
Professional Societies & Organizations
  American Society of Bone and Mineral Research (Ethics Committee member)
  American Society of Clinical Oncology
  American Association of Cancer Research
  International Cancer and Bone Society (founding member and international meeting co-organizer)
  International Bone and Mineral Society (Cancer and Bone Advisory Committee)
  International Conference on Skeletal Complications of Malignancy (Scientific Advisory Board)