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Physicians

Shannon O’Connor, M.D.
Specialties
Medical Oncology, Hematology
Board Certification
- Hematology
- Medical Oncology
- Internal Medicine
Languages
English
Interpreters available for other languages upon request.
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Biography
Board Certified in Hematology and Medical Oncology, Dr. O’Connor is a native of the Washington DC metro area. Her established practices are located in Rockville and Bethesda. She has a special focus in Women’s health including breast cancer, gynecologic cancers and hematologic conditions. She stayed local for her undergraduate work at The George Washington University and then received her Master’s Degree in Physiology at Georgetown University. After receiving her medical degree at St. George’s University, Dr. O’Connor completed her internship, medical residency and fellowship in hematology/oncology at Georgetown University/Washington Hospital Center.
She is active on the breast cancer committee at Shady Grove Adventist Hospital and is completing her certification in Genetics. On a personal note, she enjoys spending time with her 2 small children and husband doing outdoor activities such as cycling, paddle boarding and trapeze. She enjoys vacationing with her family and friends at the beach as well.
Education & Experience
College
- Georgetown University
Medical School
- St George's University School of Medicine
Internship
- Georgetown University
- Washington Hospital Center
Residency
- Georgetown University
- Washington Hospital Center
Fellowship
- Washington Hospital Center
- Hematology & Oncology
- Georgetown University
Affiliations
- American Society of Clinical Oncology
- American Society of Hematology
- Montgomery County Medical Society
- American Medical Association





Practicing Locations
Germantown
20330 Seneca Meadows Parkway
Suite B
Germantown, MD 20876
Rockville
Aquilino Cancer Center
9905 Medical Center Drive
Suite 200
Rockville, MD 20850-6535