Dr. Jimenez is an Associate Professor of Radiation Oncology at Harvard Medical School (HMS), a radiation oncologist in the Department of Radiation Oncology at Massachusetts General Hospital, and the Editor-in-Chief of Advances in Radiation Oncology. She holds an AB from Harvard University, an MD from Harvard Medical School, and completed her residency and chief residency training in the Harvard Radiation Oncology Program. She has also completed a Fellowship at HMS in Medical Ethics.  

Her clinical practice focuses on treatment of patients with breast cancer. She has special expertise in the use of proton radiation and the reduction of cardiac toxicity. She has also advanced the development of a tattoo-free treatment approach for women with breast cancer and has pursued research to optimize quality of life outcomes after radiotherapy. Dr. Jimenez is nationally recognized in the field of Radiation Oncology for the treatment of breast cancer. Her research has informed consensus guidelines and she has made novel contributions, specifically in the role of proton beam therapy for patients with breast cancer. She is the recipient of independent grant funding through the American Society of Clinical Oncology (ASCO), the American Cancer Society and The Greenwall Foundation. She serves as the Principal Investigator of multiple clinical trials exploring the prevention of cardiac toxicity after breast radiotherapy.   

She lectures nationally and internationally and serves on multiple national committees in Oncology including within the cooperative groups (NRG Oncology – Breast Locoregional Subcommittee, Alliance for Oncology in Clinical Trials – Ethics Committee, ASCO Ethics Committee - Chair), and professional societies (ASTRO, ASCO, ABR). She also serves on patient advocacy organizations including survivingbreastcancer.org (SBC). Dr. Jimenez is an honoree for the MGH Cancer Center's "The One Hundred," a recipient of the Partners in Excellence Outstanding Patient Care Award, the MGH Patient Experience Award, and the BRIDGE Award honoring providers who promote equity in patient care. She is a recipient of the MGH Claflin Distinguished Scholar Award and is also a repeat nominee for the Brian A. McGovern Award for Clinical Excellence.