School of Medicine
Showing 121-140 of 181 Results
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Jinghong Penny Peng
Clinical Instructor, Radiation Oncology - Radiation Physics
Current Research and Scholarly Interests1. IMRT Treatment planning
2. IGRT Radiation Therapy
3. Real time prostate implant
4. 4D CT and Respiratory Gating Radiation Therapy
5. HDR for breast cancer and GYN cancer
6. Xoft Electronic Brachytherapy -
Guillem Pratx
Associate Professor of Radiation Oncology (Radiation Physics)
Current Research and Scholarly InterestsThe Physical Oncology Lab is interested in making a lasting impact on translational cancer research by building novel physical tools and methods.
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Yushen Qian, MD
Clinical Associate Professor, Radiation Oncology - Radiation Therapy
BioDr. Qian is a board-certified radiation oncologist and a Clinical Associate Professor in the Stanford University School of Medicine, Department of Radiation Oncology.
In his clinical practice, he sub-specializes in genitourinary (including prostate and bladder cancer) and Head and Neck malignancies, but also treats a broad spectrum of other disease subsites including lung/thoracic, gastrointestinal, brain, lymphoma, and breast tumors. For each patient, he develops a comprehensive, individualized, and compassionate care plan customized to individual needs. His goal is to deliver the most effective cancer treatment to help patients enjoy the best possible health and quality of life.
In addition to his clinical practice, Dr. Qian serves as the Medical Director of Radiation Oncology at Stanford South Bay Cancer Center. He also serves as the Radiation Oncology Network Director of Clinical Research and has spearheaded opening of multiple NRG Oncology clinical trials at Stanford South Bay Cancer Center.
Dr. Qian is also actively involved in the Stanford Radiation Oncology residency program. He created and oversees a monthly mentorship roundtable series to assist residents with multiple aspects of their clinical training and career progression.
Outside of work, Dr. Qian enjoys spending time with his family and exploring the great outdoors of Northern California. -
Chenhui Qiu
Visiting Instructor, Radiation Oncology - Radiation Therapy
BioChenhui Qiu majored in Biomedical Engineering (BME) and received his Ph.D. from Zhejiang University in September 2019.
From January 2020 to December 2021, he worked as a Postdoctoral Researcher and Research Associate in the Department of Applied Mathematics, School of Mathematical Sciences, Zhejiang University.
From August 2022 to October 2024, he was a Postdoctoral Scholar in the Department of Radiation Oncology at School of Medicine, Stanford University.
From October 2024 to August 2025, he was a Postdoctoral Scholar in the Department of Pathology at School of Medicine, Stanford University.
Since August 2025, he has been a Visiting Instructor/Postdoc in the Department of Radiation Oncology at School of Medicine, Stanford University.
His research interests include (a) AI-enabled medical imaging and image analysis; (b) AI-powered cancer detection, diagnosis, and prognosis; (c) radiation oncology, radiology physics, dose calculation (Monte Carlo simulation); (d) treatment planning (inverse optimization), radiation dose delivery and measurement. -
Elham Rahimy, MD
Clinical Assistant Professor, Radiation Oncology - Radiation Therapy
BioDr. Rahimy is a radiation oncologist who treats patients with brain, spine, gastrointestinal, and metastatic tumors. She received her medical training at Yale, followed by residency at Stanford. She is a Clinical Assistant Professor with the Stanford Department of Radiation Oncology.
Dr. Rahimy's technical expertise includes CyberKnife Radiosurgery and MRI-guided adaptive planning. She is also actively involved in radiation oncology research and clinical trials. Her interests include improving patient and resident education, and enhancing patient quality of life and survivorship. She leads quality initiatives as a Quality Physician Improvement Leader, and serves as the Medical Student Clerkship Director. -
Yuan James Rao, MD
Associate Professor of Radiation Oncology (Radiation Therapy)
BioDr. Yuan James Rao is an Associate Professor of Radiation Oncology, and Co-Director of Proton Therapy at Stanford University. In 2026, Dr. Rao co-led the team at Stanford that treated the world’s first pediatric and adult patients with ultra-compact upright proton therapy. Dr. Rao’s professional goal is to develop the world’s most advanced proton therapy program at Stanford University.
Proton therapy is a remarkable form of radiation treatment that uses heavy charged particles (protons) accelerated to approximately two-thirds the speed of light. The unique physics of protons allows the radiation to stop within a defined distance in the body, whereas standard x-ray therapy continues to deposit radiation after treating the tumor (known as “exit dose”). By reducing exit dose, protons may reduce normal tissue exposure to radiation, which is particularly beneficial for children and young adults with cancer, and patients requiring a second course of radiation. Dr. Rao currently coordinates the Stanford Radiation Oncology Department’s clinical, research, and education efforts related to proton therapy.
Dr. Rao’s clinical practice focuses on the care of patients with Head and Neck cancer, and Thoracic cancers. His goal is to provide the highest quality care to his patients, using the most appropriate technology. This may include proton therapy but also potentially other techniques such as intensity modulated radiation therapy (IMRT), stereotactic body radiation (SBRT), MR-guided radiotherapy, 3D conformal radiotherapy, or other technologies. Nearly all radiation technologies are available at Stanford University, and thus Dr. Rao and his Radiation Oncology colleagues are well positioned to choose the best treatment for every patient.
Dr. Rao trained at the prestigious Mallinckrodt Institute of Radiology at Washington University in St. Louis, and during residency was among the first physicians in the world to use the Mevion S250 proton therapy device and the ViewRay MRI-guided radiotherapy device. Dr. Rao has traveled to UCSF, MD Anderson, Johns Hopkins University, University of Pennsylvania, Medical University of Vienna, and University Medical Center Utrecht to learn about various advanced radiotherapy techniques including MR-guided radiotherapy, brachytherapy, and proton therapy.
Prior to his role at Stanford, Dr. Rao was a physician at George Washington University in Washington, DC and held the positions of Associate Professor of Radiation Oncology and Biomedical Engineering (by courtesy), and Assistant Professor of Neurosurgery (by courtesy). He was also the founding Director of Brachytherapy, and implemented programs for gyn, head and neck, prostate, and skin radiation implants using high dose rate (HDR) techniques. He was honored as a Washingtonian Top Doctor for each of the years that he practiced in DC, and Dr. Rao has treated members of Congress with radiotherapy (public information).
Dr. Rao is a prolific researcher with more than 50 peer-reviewed publications. He is an expert in proton therapy, head and neck cancer, thorax cancers, gyn cancers, GU cancers, brachytherapy, artificial intelligence, machine learning, image analysis and large database "big data." He is co-author of the ‘Endometrial Cancer’ chapter of the 8th edition of Perez and Brady’s Principles and Practice of Radiation Oncology, the world’s most widely used reference textbook in the field. He regularly gives invited talks nationally and internationally. Dr. Rao has been grant funded by the American Cancer Society.
Dr. Rao is a respected educator and mentor, and has taught numerous engineering/physics students, medical students and residents; many of whom have gone on to become successful physicists, scientists, entrepreneurs, and physicians. -
Jason B. Ross, MD, PhD
Assistant Professor of Radiation Oncology (Radiation Therapy)
Current Research and Scholarly InterestsMy laboratory studies studying normal, dysfunctional, and malignant stem cells in the context of aging, cancer, and cancer therapies.
