School of Medicine
Showing 421-440 of 471 Results
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Jacqueline Tsai, MD, FACS
Clinical Associate Professor, Surgery - General Surgery
Current Research and Scholarly InterestsMy research interests are focused on improving breast cancer surgeries. I am interested in novel techniques in surgery to improve cosmetic outcomes, minimize surgical re-excisions and possible augmented reality technologies to enhance surgery.
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William J. Vasquez McTeigue
Affiliate, Surgery - Vascular Surgery
BioWilliam Vasquez McTeigue is conducting research in the lab of Katherine Hekman, MD, PhD, RPVI, FACS, where he applies induced pluripotent stem cells (iPSCs) to develop regenerative therapies for peripheral artery disease. His work bridges vascular surgery and stem-cell biology, with the goal of advancing treatments for patients with critical limb ischemia and other vascular disorders.
Beyond his current research, William is interested in cardiovascular innovation and translational medicine, aiming to pursue a career at the intersection of surgery, engineering, and regenerative biology. -
Jenny Lymary Veliz-Urzua, DNP, FNP-BC
Affiliate, Surgery - General Surgery
BioJenny L. Veliz-Urzua, DNP, MBA, FNP‑BC, RNFA is a Nurse Practitioner specializing in GI Surgical Oncology at Stanford Health Care. She holds a Doctor of Nursing Practice (DNP) from Purdue Global University, an Executive MBA from the Yale School of Management, Family Nurse Practitioner (FNP) degree from Yale University School of Nursing in 2006, and earned her Bachelor of Science in Nursing from the University of Southern California in 2004.
Her clinical expertise spans hepatobiliary, pancreatic, gastrointestinal, and peritoneal malignancies. She has played a key role in advancing complex regional cancer therapies, working closely with Dr. Byrne Lee, Program Director for Regional Cancer Therapies, to optimize the HIPEC patient-care experience. She has also contributed to the implementation of the Hepatic Arterial Infusion Pump (HAIP) program, supporting its clinical integration and multidisciplinary workflows.
In addition to her GI oncology work, Jenny has served in multiple leadership roles across institutions and cancer services, currently as interim lead for the Breast Surgery and Reconstruction program and Radiation Oncology. In 2020, Jenny was recognized as the American Association of Nurse Practitioners (AANP) California State Award for Nurse Practitioner Advocate recipient, honoring her leadership and contributions to advancing NP practice in the state. -
Banita Verma
Postdoctoral Scholar, General and Vascular Surgery
BioI am Banita Verma, a postdoctoral researcher at Stanford University, currently working with Dr. Fredrick M. Dirbas at the Department of Surgery. Our research focus is to understand the type of cell death and the nature of immune responses triggered by FLASH versus conventional radiotherapy in various murine breast cancer models. Additionally, we aim to explore the role of DAMPs released by dying cells in generating immune responses after both FLASH and conventional radiotherapy. Furthermore, we are interested in studying the mechanism behind the low toxicity of the FLASH compared to conventional radiotherapy to the adjacent non-cancerous tissue. To accomplish this goal, our laboratory is actively collaborating with Dr. Bill Loo, who holds great expertise in the field of radiation oncology.
Before joining Stanford University, I served as a postdoctoral researcher at Karolinska Institutet, Sweden from 2021-2023. My research aimed to study the activation mechanism of Cholineacetyltransferase (ChAT), a pivotal enzyme in acetylcholine synthesis. This enzyme is known to be hypoactive in neurodegenerative conditions such as Alzheimer's and Parkinson's disease. Our group successfully synthesized novel compounds capable of enhancing ChAT activity.
I completed my doctoral research in cancer biology at the Department of Experimental Medicine and Biotechnology, PGIMER Chandigarh, India, in 2021. My work was the evaluation of role of TNF-α mediated Necroptosis in breast cancer cells. My primary research interests are cancer biology and cell death pathways. -
Joshua Aaron Villarreal
Affiliate, Department Funds
Resident in SurgeryBioDr. Villarreal is a current clinical informatics fellow at Stanford Medicine and first surgical resident to enter the program. He began general surgery training at Stanford in 2020. Dr. Villarreal is a Texas native and hometown is in McAllen TX. He completed medical school at Baylor College of Medicine in 2020 and undergraduate studies in Human Biology at the University of Texas.
During residency, Dr. Villarreal has published numerous articles in a wide range of surgical fields including: pediatric surgery, liver transplantation, trauma critical care and surgical data science. He currently holds the role as president of the resident led surgical research group Surgeon’s Writing About Trauma (SWAT) and mentors medical students and undergrads in conducting surgical related clinical research. He is a member of the Artificial Intelligence in Surgery research group at Stanford focused on leveraging methods in machine learning in the care of transplant patients.
His long-term goals are to apply clinical informatics frameworks to optimize surgical care workflows, enhance intraoperative decision making, and increase accessibility of outpatient surgical services to lower income patients. -
Brendan C. Visser, MD
Professor of Surgery (General Surgery)
Current Research and Scholarly InterestsDr. Visser's research interests span the breath of his clinical practice. Areas of active research include the multidisciplinary treatment of pancreatic neuroendocrine cancers, technical aspects of minimally invasive pancreatic and liver surgery, and trends in the management of hepatobiliary cancers in California, focusing on socioeconomic and instituional barriers to appropriate care.
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Todd Wagner, PhD
Professor (Research) of Surgery (Surgery Policy Improvement Research and Education Center) and, by courtesy, of Health Policy
BioTodd Wagner, PhD, is a Professor in the Department of Surgery at Stanford University. He studies health information, efficiency and value, and health care access. He is particularly interested in developing learning health care systems that provide high value care. In addition to his role at Stanford, he Directs the Health Economics Resource Center at the Palo Alto VA and co-directs the VA Center for Policy Evaluation. At VA, he is funded as a Research Career Scientist and he co-directs the VA/NCI Big Data Fellowship.
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James Wall
Current Research and Scholarly InterestsHealth Technology Innovation
