School of Medicine
Showing 11,721-11,740 of 12,932 Results
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Stephen R. Viess, MD
Clinical Assistant Professor, Orthopaedic Surgery
BioDr. Viess is a board-certified orthopaedic surgeon with subspecialty board certification in sports medicine.He delivers care at Stanford Health Care – ValleyCare in Pleasanton. Dr. Viess focuses on arthroscopic surgery and sports medicine, with a special interest in arthroscopic reconstruction of the shoulder and knee.
Topics include the biomechanics of pitching, and shoulder and elbow injuries in the throwing athlete. Dr. Viess is a fellow of the American Academy of Orthopaedic Surgery and a member of the California Orthopaedic Association.
He strives to offer his patients the most advanced, least invasive surgical procedures, including ACL reconstruction, meniscal surgery, and arthroscopic rotator cuff and labral repairs. Dr. Viess has extensive experience in the management and treatment of sports- related orthopedic injuries. He served as Assistant Team Physician
for Major League Baseball’s Oakland As, providing game coverage and conducting pre- and post-season physical exams. For six years, Dr. Viess directed the Stanford Health Care – ValleyCare Sports Medicine Program. He also served as the team physician for Granada High School in Livermore, California.
In addition to his clinical practice, Dr. Viess has conducted research, including a 10-year review of clinical satisfaction, revision rates, and radiographic evidence of stem fixation associated with the Ultimate-C femoral stem. He also led a study evaluating capsular sling repair during total hip arthroplasty.
Dr. Viess has made numerous presentations to peers and to the community. Peer-targeted topics include graft selection in ACL reconstruction, concussion
management, and on-field management of spine injuries. At the Lake Tahoe Sports Medicine Conference, he has presented lectures on PCL ruptures, multi-ligament knee injuries, and AC joint sprains. He also has delivered lectures for family practitioners on the evaluation and physical examination
of orthopaedic patients. For the community, Dr. Viess has made presentations at health fairs and schools. Topics include the biomechanics of pitching, and shoulder and elbow injuries in the throwing athlete.
Dr. Viess is a fellow of the American Academy of Orthopaedic Surgery and a member of the California Orthopaedic Association. -
Davis Vigneault
Clinical Scholar, Radiology
Fellow in Rad/Cardiovascular ImagingBioDavis is a resident in diagnostic radiology at Stanford, having received his medical degree from Tufts University School of Medicine and his DPhil in Biomedical Engineering from the University of Oxford through the NIH-Oxford Scholars and medical scientist training programs. For his graduate degree, worked on novel algorithms for measuring regional cardiac function from cardiac CT and MR, publishing in Radiology, Medical Image Analysis, and the Journal of Cardiovascular Magnetic Resonance, among others. In addition to cardiovascular imaging and deep learning, Davis has a strong interest in open source science, having been a frequent contributor of software to ITK and other libraries in the ITK ecosystem.
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Aaran Vijayakumaran
Postdoctoral Scholar, Biochemistry
BioAaran Vijayakumaran, PhD is a Postdoctoral Scholar at Stanford University School of Medicine, where he researches the cell biology of inherited Parkinson’s Disease in the Department of Biochemistry under Professor Suzanne Pfeffer.
He completed his PhD at the University of Cambridge, applying volumetric electron microscopy and artificial intelligence to generate the first nanoscale map of the human airway epithelium. His doctoral work revealed how cellular architecture and metabolism remodel during differentiation, with a particular focus on the motile cilia, their rootlets, and their structural contacts with mitochondria and the consequences for mitochondrial metabolism. Beyond research, Aaran is active in the biotech and innovation ecosystem. He was awarded a scholarship to join EnterpriseTECH at Cambridge Judge Business School, served as an Investment Fellow Intern at Syncona, and worked as a Venture Builder Intern at Cambridge Future Tech and OmniBuds, a medical device startup. In these roles, he contributed to early-stage strategy, clinical trial planning, and commercial development. -
José Vilches-Moure, DVM, PhD
Associate Professor of Comparative Medicine
BioDr. José G. Vilches-Moure, DVM, PhD, Associate Professor, received his DVM degree from Purdue University in Indiana in 2007. He completed his residency training in Anatomic Pathology (with emphasis in pathology of laboratory animal species) and his PhD in Comparative Pathology at the University of California-Davis. He joined Stanford in 2015, is the current Faculty Director of the Master of Laboratory Animal Science (MLAS) Graduate Program, founder and past Faculty Director of the Comparative and Experimental Pathology Post-doctoral Fellowship (2023-2025), and the past Director of the Animal Histology Services (AHS; 2015-2022). Dr. Vilches-Moure is a diplomate of the American College of Veterinary Pathologists, and his collaborative research interests include refinement of animal models, cancer biology and early cancer detection techniques, cardiac development and pathology, developmental pathology, and host-pathogen interactions. His teaching interests include comparative anatomy/histology, general pathology, comparative pathology, and pathology of laboratory animal species.
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Maria Norma Villalon Landeros
Clinical Assistant Professor, Medicine - Primary Care and Population Health
BioDr. Norma Villalon's path to medicine reflects a journey of perseverance and community service. Born and raised in rural Guanajuato, Mexico, her early years were shaped by strong family bonds and a deep appreciation for community care, despite financial challenges. Before immigrating to the United States at 18, she dedicated herself to adult education through INEA, teaching literacy and basic education to members of her community. This early experience fostered her commitment to serving diverse populations and understanding their unique needs. As a first-generation professional from an immigrant background, Dr. Villalon brings a unique perspective to medicine, informed by her profound understanding of underserved communities. Her journey from a small Mexican village to becoming a physician exemplifies the power of determination and the importance of accessible healthcare. Through her work, she continues to advocate for equitable medical care while actively mentoring and supporting the next generation of physicians from underrepresented backgrounds.
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Perla Villamor
Clinical Instructor, Otolaryngology (Head and Neck Surgery)
BioPerla Villamor, MD, is a Clinical Instructor in the Clinician Educator line in the Department of Otolaryngology — Head & Neck Surgery and the Division of Pediatric Otolaryngology at Stanford University School of Medicine. She completed her medical and otolaryngology training in Colombia, followed by a pediatric otolaryngology fellowship in Mexico.
She has extensive experience in research, teaching, and clinical practice, having worked in leading institutions across Latin America and the Middle East.
Her passion for pediatric airway surgery has driven her to collaborate on global surgery initiatives and contribute to international scientific publications. She is deeply committed to working with children and their families to improve their quality of life and ensure they experience happy, healthy childhoods. She is currently pursuing a two-year International Fellowship in Complex Pediatric Otolaryngology at Stanford Children’s Hospital. -
Ricardo Villanueva Gaona
Clinical Rsch Coord 2, Dermatology
Current Role at StanfordClinical Research Coordinator II at Dermatology Department
