School of Medicine
Showing 251-300 of 408 Results
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Anjali Nambiar
Social Science Research Professional 1, Stanford-Surgery Policy Improvement Research and Education Center
BioAnjali Nambiar, B.S., is a Social Science Research Professional at the Surgery Policy Improvement Research and Education (S-SPIRE) Center. Anjali completed her degree in Biological Sciences. She has coordinated a variety of clinical research projects and worked with several public health nonprofits to implement new programs at community-based clinics and organizations.
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Aussama Nassar, MD, MSc,FACS, FRCSC
Clinical Associate Professor, Surgery - General Surgery
BioDr. Nassar is board-certified in both General Surgery and Surgical Critical Care in the United States and Canada, underscoring his exceptional expertise in these fields. He holds a Master of Science in Health Science Education from McMaster University, Canada, further solidifying his strong academic foundation.
Currently, Dr. Nassar serves as the inaugural Director of the Emergency General Surgery Service and the Director of the Surgical Critical Care Fellowship Program at Stanford University. He is also the founder and director of the Surgery Resident Coaching Program. With over 12 years of clinical and academic experience at premier tertiary care referral centers across North America, Dr. Nassar brings unparalleled knowledge and leadership to his roles.
Dr. Nassar's clinical interests include trauma, acute care surgery, critical care, and a particular focus on abdominal wall reconstruction. As a dedicated clinician-educator, he is a certified simulation educator and serves as a course director for ATLS and ASSET programs. His research is centered on advancing surgical education, with an emphasis on fostering the development of non-technical skills in surgical training.
In addition to his educational initiatives, Dr. Nassar is actively engaged in developing innovative assessment tools for surgical trainees and addressing burnout among physicians and healthcare professionals. With a strong national and international presence, Dr. Nassar continues to shape the future of surgical education and healthcare delivery through his leadership, research, and advocacy. -
Rahim Nazerali, MD, MHS, FACS
Clinical Associate Professor, Surgery - Plastic & Reconstructive Surgery
BioDr. Nazerali specializes in complex reconstruction, microsurgery, and aesthetic and cosmetic surgery. He excels at breast reconstruction using free autologous tissue and performs advanced techniques such as the minimally invasive superficial inferior epigastric artery (SIEA) flap, as well as the deep inferior epigastric artery perforator (DIEP) flap procedure. In addition to autologous reconstruction, Dr. Nazerali utilizes the latest techniques in implant-based breast reconstruction. His techniques and results have made him a leading instructor and lecturer at national and international institutions, societies and conferences.
In addition to breast reconstruction, Dr. Nazerali performs both aesthetic as well as whole body reconstructive procedures. He has a busy aesthetic practice focusing on breast augmentation, face and body rejuvenation as well as body contouring. In his reconstructive practice, he specializes in abdominal wall reconstruction as well as post-trauma tissue transfers. For every patient in his care, his goal is to optimize restoration of both form and function.
To help advance the field of plastic and reconstructive surgery, Dr. Nazerali conducts research into outcomes of breast reconstruction, augmentation, and reduction. Dr. Nazerali has published widely: well over 100 journal articles and conference proceedings. Topics include breast reconstruction after radiation; advances in surgical technique; and, the use of virtual, augmented, and mixed reality systems in plastic surgery practice and education. His work has appeared in Annals of Plastic Surgery, Plastic and Reconstructive Surgery, Surgery, the European Journal of Plastic Surgery, the Aesthetic Surgery Journal, and elsewhere.
Dr. Nazerali focuses not only on improving his patient’s lives but also our ability to deliver care as an institution. He is on the Medical Executive Council at Stanford Healthcare, serves as a committee member in the American Society of Plastic Surgeons as well as the California Society of Plastic Surgeons. In his spare time, he volunteers his time to provide reconstructive surgical services to adults and children in need worldwide.
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Dung Nguyen
Clinical Professor, Surgery - Plastic & Reconstructive Surgery
BioDr. Dung H Nguyen is currently the Director of Breast Reconstruction at the Stanford Women’s Cancer Center, Director of Microsurgery and Microsurgery Fellowship, and the Director of Adult Plastics Clinic at Stanford Healthcare. She graduated with a Bachelor of Science in Biochemistry and highest academic honor and distinction from U.C. Davis. She earned a Pharm.D degree from U.C.S.F. School of Pharmacy and a MD degree from U.C.S.D. She then did a residency in general surgery and a residency in Plastic and Reconstructive Surgery at the University of Southern California (USC) Medical Center. She further completed a fellowship in microsurgery from Chang Gung Memorial Hospital in Taiwan, one of the largest reconstructive surgery centers in the world. She was recruited to Stanford from Cedar Sinai Medical Center in 2012, and is currently a Clinical Professor in the Division of Plastic and Reconstructive Surgery at Stanford University.
Dr. Nguyen specializes in aesthetic and reconstructive breast surgery, surgical treatment of lymphedema including vascularized lymph node transfer and lymphaticovenous anastomosis, and complex tissue reconstruction utilizing microsurgery and supermicrosurgery. She also has interest in cosmetic surgery, including facial rejuvenation and body contouring procedures.
In addition to her clinical commitment, Dr. Nguyen has basic science and clinical research interests in lymphedema and breast reconstruction. She has published articles in peer review journals, presented at national and international professional meetings and has authored book chapters in various plastic surgery textbooks. She also enjoys volunteering on overseas medical missions and participating in medical charity activities. -
Kenneth Nieser
Postdoctoral Scholar, General Surgery
BioKen Nieser is a postdoctoral research fellow through the Big Data-Scientist Training Enhancement Program (BD-STEP) at the Palo Alto VA and in the Department of Surgery, Stanford School of Medicine. Ken received a BA in Physics and Mathematics from Swarthmore College and a PhD in Epidemiology with a minor in Statistics from the University of Wisconsin-Madison. During his PhD, Ken developed and applied statistical methods for improving algorithmic fairness of data analyses used to inform screening and treatment of mental illnesses. These projects included development of an approach for detecting sample subsets with differential psychological symptom patterns and a sample representation reweighting method for improving the precision of subgroup-specific treatment effect estimation.
Ken’s current research interests are in health care inequities, quality measurement, and algorithmic fairness. During his fellowship, Ken will be working on investigating the statistical reliability of quality measures and decomposing health care disparities to provide practical information for resolving inequities, with applications in mental health care and surgical care. -
Jeffrey Norton, MD
Robert L. and Mary Ellenburg Professor of Surgery, Emeritus
Current Research and Scholarly InterestsInterleukin-12 is a Th1 cytokine. It is important in the cell mediated immune response. We are investigating its role as an anti-tumor cytokine to augment the immune response against cancer. We are planning a human trial.
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David Oakes
Professor of Surgery at the Santa Clara Valley Medical Center, Emeritus
Current Research and Scholarly InterestsTrauma, especially splenic and thoracic
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Kenneth Perrone
Instructor, Surgery - General Surgery
BioKenneth Perrone is a fellowship trained colon and rectal surgeon. His clinical practice covers a wide range of problems related to the colon, rectum, and anus. In addition to his clinical practice, conducts research in Technology Enabled Clinical Improvement center focused on quantifying physician performance using sensors.
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Calvin Perumalla
Postdoctoral Scholar, General Surgery
BioDr. Calvin Perumalla joined the Stanford's TECI Center team as a postdoctoral researcher in February 2021. He received his Masters and Doctorate degrees in Electrical Engineering from the University of South Florida. His graduate research work involved building a novel cardiac rhythm monitor with enhanced diagnostic capabilities. He was also involved in building machine learning models to detect cardiac abnormalities. Dr. Perumalla later spent two years working at a late-stage startup where he was involved in building AI models to detect anomalies in computer networks. He is passionate about using AI to improve the quality of human life and his current research interests include Computer Vision, Image Segmentation and Surgical Data Science.
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Laura Alexandra Petrikovic
Affiliate, Surgery - Vascular Surgery
BioExperienced advanced practice provider (APP) with broad medical knowledge, including prior roles in Neurosurgery and Cardiovascular Surgery. Moved to California from Pennsylvania and began working for Stanford Vascular Surgery in April 2021. Previous affiliation with UPMC in Pittsburgh, PA.
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Hang T Pham
Research Specialist, Surgery - General Surgery
Current Role at StanfordStanford School of Medicine: Senior Research Scientist
Stanford Prevention Policy Modeling Lab: Affiliated Member (https://ppml.stanford.edu/people/hang-pham) -
George A. Poultsides, MD, MS
Professor of Surgery (General Surgery)
Current Research and Scholarly InterestsClinical trials of experimental diagnostics and therapeutics; outcomes analysis following combined modality treatment of hepatic, pancreatic, and gastrointestinal malignancies.
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Janey S.A. Pratt, MD
Clinical Professor, Surgery - Pediatric Surgery
BioDr. Janey S.A. Pratt, MD, FACS, FASMBS is a general surgeon who specializes in Laparoscopic and Robotic General and Metabolic and Bariatric Surgery (MBS). She began her career in general surgery at Massachusetts General Hospital, where she was a founding member of the MGH Weight Center. As surgical director she introduced minimally invasive MBS and adolescent MBS to MGH in 2001 and 2007 respectively. In 2011 Dr. Pratt took over as Director at the MGH Weight Center and continued to work on several national committees towards improving access and care for adolescents with severe obesity. Dr. Pratt continued to practice general surgery throughout her tenure at MGH seeing patients with breast cancer, hernias, and obesity. She performed advance minimally invasive surgery (MIS) as well as advanced endoscopy.
In 2016 Dr. Pratt moved to California where she began her work at Stanford University, splitting her time between the Lucille Packard Children’s Hospital and the Palo Alto VA. She performs Minimally Invasive MBS as well as endoscopy. Dr. Pratt has trained in robotic surgery as well. As a Clinical Professor of Surgery, Dr. Pratt is involved in training Stanford medical students and residents both in the OR, in clinic, in simulation labs and in the classroom. Since 2023 Dr. Pratt is dedicated only to the Children's Hospital running the Adolescent Metabolic and Bariatric Surgery program at LPCH. This is an MBSAQIP accredited program in a free-standing children's hospital dedicated to the multidisciplinary care of children with obesity. This program is one of the top 5 programs in the country. Dr. Pratt has been involved in creating and updated guidelines for Adolescent MBS since 2005. In 2018 she was first author on the ASMBS Pediatric Metabolic and Bariatric Surgery Guidelines. Her research interests include MIS MBS, pediatric obesity treatment and the use of medications to improve outcomes of MBS. Dr. Pratt frequently lectures on the subject of Adolescent Metabolic and Bariatric Surgery. -
Carla Pugh, MD, PhD
Thomas Krummel Professor
Current Research and Scholarly InterestsThe Technology Enabled Clinical Improvement (T.E.C.I.) Center is a multidisciplinary team of researchers dedicated to the design and implementation of advanced engineering technologies that facilitate data acquisition relating to clinical performance.
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Ganesh Rajasekar
Biostatistician 2, Stanford-Surgery Policy Improvement Research and Education Center
BioGanesh Rajasekar, MPH is a Biostatistician in the S-SPIRE Center. He received his graduate degree in Epidemiology from Emory University in 2018. Since then, he has been involved in the development of grant-funded manuscripts, abstracts, and presentations. His past experience includes statistical collaboration in the Knight’s Alzheimer Disease Research Center (ADRC) in the Washington University School of Medicine in St. Louis and the UC Davis Health Department of Surgery.
He currently serves as a biostatistician to Dr. Arden Morris and Dr. Aaron Dawes for their research projects. His research interests lie within health services and outcomes research, with an emphasis on utilizing administrative databases to investigate health disparities in underserved populations. -
Adrit Rao
High School Student, Surgery - Vascular Surgery
BioAdrit is passionate about research at the intersection of deep learning, healthcare, and mobile apps. For the past four years, he has been conducting digital health research at Stanford's Vascular Surgery division. He is also a member of the Stanford Mussallem Center for Biodesign's Digital Health group and serves as a TA for Stanford's CS342 course.
Adrit has co-authored 16 peer-reviewed publications, including 13 as first author. He has presented at several prestigious international conferences, including MICCAI, ICCV, CVPR, and MWSCAS. He developed AutoABI, a patent-pending AI-enabled app for peripheral artery disease diagnosis. He developed the A4 deep learning pipeline for automated abdominal aortic aneurysm measurement which is open-sourced through Stanford AIMI's Comp2Comp. His research also focuses on improving the explainability of computer vision for medical image analysis. He is also a contributor to Stanford Spezi's digital health ecosystem. -
Dan Riskin
Clinical Professor (Affiliated), Surgery - General Surgery
Staff, Surgery - General SurgeryBioDr. Riskin is Clinical Professor of Surgery. His research interests include healthcare quality, technology, and policy. With a focus on translational research, developed products are in use by leading health systems and insurers influencing the care of millions of patients.
Dr. Riskin's medical credentials include a MD from Boston University, residency in surgery at UCLA, and fellowship in critical care and acute care surgery at Stanford University. He is board-certified in four specialties, including surgery, critical care, palliative care, and clinical informatics. His business training includes a MBA with a focus in bioinformatics from the Massachusetts Institute of Technology and the Stanford Biodesign Innovation Fellowship. -
Gary K. Roberts, D.D.S.
Clinical Assistant Professor, Surgery - Plastic & Reconstructive Surgery
BioDr. Roberts has performed hospital dentistry and surgery at Stanford University Medical Center and Lucile Packard Children's Hospital since 1995. He is also on the faculty at University of the Pacific School of Dentistry. He treats a variety of oral and maxillofacial conditions, including dental trauma and infection, dental implant and restorative reconstruction, surgical tooth extraction, bone and tissue grafting, conventional and surgical endodontic procedures, dental oncology care of cancer patients, as well as orofacial pain treatment.
He has presented CME lectures and Grand Rounds to numerous Departments at Stanford, as well as teaching Residents and Fellows at Stanford Medical School and the Palo Alto VA. He also lectures in the Physician Assistant Program at Stanford.
During his nearly a quarter of a century of military service, he was one of the leading researchers on combat trauma and the pathophysiology of projectile wounds. He currently serves as a member of the Council on Peer with the California Dental Association and is an Anesthesia Evaluator for the California State Dental Board. Dr. Roberts is frequently asked to speak on a variety of topics to organizations both in the US and internationally. -
Brian Ruhle, MD, MS
Clinical Assistant Professor, Surgery - General Surgery
BioDr. Ruhle is a board-certified surgeon with dual fellowship training in bariatric and minimally invasive surgery from Stanford Health Care and endocrine surgery from UCLA Health. He also serves as a clinical assistant professor in the Department of Surgery, Division of General Surgery at Stanford University School of Medicine.
Dr. Ruhle specializes in bariatric (weight loss) surgery, foregut (upper digestive tract) surgery, and abdominal wall reconstruction. He uses leading-edge laparoscopic and robotic surgical techniques to help patients achieve sustainable weight loss and improve obesity related health conditions. His expertise in advanced minimally invasive procedures offers patients significant benefits, including faster recoveries, reduced pain, and shorter hospital stays.
Dr. Ruhle’s research interests span a wide range of topics in metabolic and bariatric surgery. His studies have explored combination therapy for obesity management, improved screening and treatment of endocrine disorders, and optimizing outcomes in thyroid and parathyroid surgery. He has published his findings in numerous peer-reviewed journals, including Surgery, Journal of Gastrointestinal Surgery, Blood, and Journal of the American College of Surgeons.
During his surgical training, Dr. Ruhle presented at prominent national and regional meetings, including the annual meetings of the American Association of Endocrine Surgeons and American College of Surgeons Clinical Congress. His presentations have addressed innovative topics such as using GLP-1 agonists (medications that help regulate blood sugar and reduce appetite) before bariatric surgery. His presentations have also addressed improving screening protocols for hyperaldosteronism (high blood pressure caused by the excess production of the hormone aldosterone).
Dr. Ruhle is a member of the American Association of Endocrine Surgeons, American Society for Metabolic and Bariatric Surgery, Clinical Association of California Endocrinologists, and Society of American Gastrointestinal and Endoscopic Surgeons. -
Joel Anthony Sadler
Adjunct Lecturer, Surgery - Anatomy
BioDr. Joel Sadler, is an educator at Stanford University, serial entrepreneur, and XR + AI technology expert. As adjunct faculty at Stanford he teaches STEAM courses exploring how virtual and augmented reality VR and AI can empower the next generation of creative learners. His research at MIT/Stanford has ranged from wearable prosthetics to educational toys. He is a co-founder of several award winning technology companies including Piper Learning and PatchXR, that pioneer learning skills through AI guidance and virtual play. He holds ME/CS degrees from MIT/Stanford and has over 20 publications on the themes of creative computing, and making technology more accessible for all.
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Yann Sakref
Postdoctoral Scholar, General Surgery
BioYann Sakref is a Postdoctoral Scholar in General Surgery at Stanford University, working within the Knowlton Lab. With a passion for interdisciplinary sciences and advancing medical biotechnology and patient care, Yann is developing clinical and AI solutions as part of an ARPA-H-funded project under Dr. Knowlton's supervision. His work focuses on creating computer vision models for surgical assistance and contributing to the collaborative development of innovative tools by working closely with clinical, engineering, and AI teams. He also works closely with collaborators at the S-SPIRE Center.
