School of Medicine
Showing 141-149 of 149 Results
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Sherry M. Wren, MD, FACS, FCS(ECSA), FISS
Professor of Surgery (General Surgery)
Current Research and Scholarly InterestsOur research interests are primarily in global surgery,robotics,surgical oncology, especially gastrointestinal cancers.
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Rachel L. Yang, MD, FACS, NABBLM-C, IBCLC
Clinical Assistant Professor, Surgery - General Surgery
BioDr. Rachel Yang is a board-certified, fellowship-trained breast surgeon and breastfeeding medicine specialist with Stanford Health Care. She is a member of the oncology team at Stanford Medicine Cancer Center in Emeryville.
Dr. Yang specializes in complex procedures to treat breast cancer, including oncoplastic breast-conserving surgery and nipple-sparing mastectomy. She also has expertise in breastfeeding and lactation medicine as an International Board-Certified Lactation Consultant and carries a dual board certification by the North American Board of Breastfeeding and Lactation Medicine. Dr. Yang prioritizes compassionate and patient-centered care, understanding that breast cancer or complications of lactation can be extremely personal.
As a physician-researcher, Dr. Yang studies surgical outcomes, health equity, and policy related to breast cancer care. She has investigated topics including disparities in access to breast cancer care and breast reconstruction following mastectomy. Her work has also examined biological factors that influence how breast cancer develops. In addition, Dr. Yang focuses on surgical education, advancing innovative training models, communication, and professional well-being in academic medicine.
Dr. Yang has published her findings in premier peer-reviewed journals, including Cancer, Annals of Surgical Oncology, and Breast Cancer Research and Treatment. She has also presented her research at meetings of the American Society of Breast Surgeons, the American College of Surgeons, and the Association for Surgical Education.
Her presentations have highlighted how race and health policy influence access to surgical options in breast cancer care, as well as ways to make breast surgery more fair, safe, and effective. Dr. Yang has lectured extensively and taught courses to breast care and lactation providers on maternal complications of lactation.
Dr. Yang is a fellow of the American College of Surgeons. She is also a member of the Academy of Breastfeeding Medicine, the American Society of Breast Surgeons, and the Institute for the Advancement of Breastfeeding and Lactation Education. -
Kirbi Yelorda, MD, MS
Clinical Assistant Professor, Surgery - General Surgery
BioDr. Kirbi Yelorda is a fellowship-trained colon and rectal surgeon and clinical assistant professor in the Department of Surgery, Division of General Surgery – Colon and Rectal Surgery at Stanford University School of Medicine. She completed her colon and rectal surgery fellowship at Mount Sinai Health System and her general surgery residency at Stanford Health Care, where she also earned a Master of Science degree in health research and policy.
Dr. Yelorda specializes in the surgical management of colorectal cancer, inflammatory bowel disease (IBD), and benign anorectal conditions such as hemorrhoids, fistulas, and fissures. She has advanced training in minimally invasive and robotic surgical techniques that support enhanced recovery and optimal patient outcomes.
Dr. Yelorda’s research focuses on the impact of social determinants of health on colorectal cancer outcomes and disparities in surgical care. She is particularly interested in surgical education and quality improvement.
Dr. Yelorda has authored articles published in peer-reviewed journals such as JAMA Surgery, Journal of Surgical Education, and Diseases of the Colon & Rectum. She has presented her work at national conferences including those of the American Society of Colon and Rectal Surgeons and the Pacific Coast Surgical Association. She is a recipient of Stanford University's Samuel L. Kountz, MD Humanitarian Award.
Dr. Yelorda is an active member of the American College of Surgeons, the Alpha Omega Alpha Honor Medical Society, and the Gold Humanism Honor Society. -
Yulia Zak, MD, FACS
Clinical Assistant Professor, Surgery - General Surgery
BioDr. Yulia Zak earned her medical degree from SUNY Downstate Medical Center before completing general surgery residency at Stanford University and advanced minimally invasive gastrointestinal and bariatric fellowship training at the Massachusetts General Hospital. Dr. Zak is certified by the American Board of Surgery and American Society for Metabolic and Bariatric Surgery. She has also completed the Stanford Surgical Education and Simulation fellowship and was previously an Assistant Program Director for the general surgery residency program at Mount Sinai Beth Israel. Dr. Zak joined the faculty at Stanford in 2018 and is the current Fellowship Associate Program Director. Her current clinical practice is focused on bariatrics, foregut and abdominal wall procedures. Her academic interests include quality improvement, surgical education, and bariatric outcomes.
