Dr. Ian Thomas Greenwalt, MD

Dr. Ian Thomas Greenwalt, MD

Dr. Ian Thomas Greenwalt, MD

Languages: English
Phone: 202.444.3315
Fax: 877-376-2420

Contact this Provider:

  • Breast Surgery
Conditions I Treat
  • atypical ductal hyperplasia
  • atypical lobular hyperplasia
  • atypical papilloma
  • axillary mass
  • benign breast lump
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Procedures I Perform
  • axillary lymphadenectomy
  • breast biopsy
  • breast cancer surgery
  • breast conservation
  • cancer risk reduction surgery
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About the Provider

Ian T. Greenwalt, MD, is a board certified breast surgeon practicing in the MedStar Breast Health Program at MedStar Georgetown University Hospital. A graduate of Boston College, Dr. Greenwalt received his medical degree from Drexel University College of Medicine. He completed his general surgery residency at University Hospitals Cleveland Medical Center/Case Western Reserve University. Dr. Greenwalt then completed a fellowship in breast oncologic surgery at MedStar Georgetown University Hospital and Medstar Washington Hospital Center.

Dr. Greenwalt specializes in management of both malignant and benign breast disease. Through the combination of minimally invasive surgical techniques and advanced oncoplastic skills, he strives to provide his patients with high-quality, comprehensive, multidisciplinary care.

Dr. Greenwalt has published papers and book chapters focusing on safety and efficacy of outpatient mastectomy with reconstruction, disparities in breast cancer care and the development of personalized breast cancer care. His research interests center on improving post-operative pain management through multi-modality pain control, lymphedema reduction and employing nerve-sparing operative techniques.

Additionally, Dr. Greenwalt is a passionate teacher, committed to educating medical students, residents and fellows as well as helping his patients understand their disease processes in order to make thoughtful, informed decisions in their care. He is an active member of the American College of Surgeons, the American Society of Breast Surgeons, and the Society of Surgical Oncology.

  • Fellowship Program: MedStar Washington Hospital Center (2020)
  • Residency Program: University Hospitals of Cleveland (2019)
  • Medical School: Drexel University College of Medicine (2014)
    MedStar Health Providers participate with a wide range of health insurance products. We accept self-pay patients and the insurances plans listed below. This list is not comprehensive, it is updated periodically and is subject to change. If you do not see your health insurance plan or product listed, or if you have any questions regarding MedStar Health’s participation with your health plan, please contact your health plan to verify participation with our providers.

    Since the MedStar Health providers span the District of Columbia, Maryland and Virginia regions, our participation with DC, Maryland and Virginia Medical Assistance programs varies by provider group. Please contact your MedStar Physician’s Office to assist with verifying Medical Assistance participation. If you are enrolled in a Medicaid Managed Care Organization, please contact your Medicaid health plan to verify participation.

Practice Locations
  • 3800 Reservoir Road Northwest
    Betty Lou Ourisman Breast Center
    Washington, DC 20007
    View Map

    Phone: 202-295-0560
    Fax: 877-376-2420

Member of Medical Staff
  • MedStar Georgetown University Hospital