Stanford University
Showing 51-100 of 155 Results
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Stefanie S. Jeffrey, MD
John and Marva Warnock Professor, Emerita
Current Research and Scholarly InterestsDr. Jeffrey led the multidisciplinary team from the Schools of Medicine, Engineering, and Genome Technology Center that invented the MagSweeper, an automated device that immunomagnetically captures live circulating tumor cells (CTCs) from cancer patient blood for single cell analysis or culture. Her lab also works on microfluidic technologies for tumor cell capture, characterization, and growth - with the goal of defining individual patient response to newer biologically-based cancer therapies.
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Mardi Karin, MD, FACS
Clinical Professor, Surgery - General Surgery
BioDr. Mardi R. Karin is a board certified surgeon with over 20 years of experience, specializing in breast surgery and is Clinical Professor of Surgery in Stanford University Department of Surgery, Section of Surgical Oncology. She was appointed the first Clinical Director of Breast Cancer Care at Stanford Cancer Center South Bay after the new cancer center opened and served in this role from 2016-2019. Dr. Karin specializes in the surgical treatment of breast diseases and cancer. In addition to providing outstanding care, her focus and leadership in breast cancer care includes improving coordinated care for breast cancer treatment both within the Cancer Center and the community.
Dr. Karin has extensive experience in breast surgery, including complex breast cancer skin and nipple sparing procedures in coordination with the plastic surgeon for immediate breast reconstruction and optimal appearance with excellent outcomes. She collaborates closely with Plastic and Reconstructive Surgery to provide the best options to patients, including Oncoplastics for optimal aesthetic appearance with breast conservation treatment, in addition to mastectomy with nipple sparing and immediate breast reconstruction. Her clinical research is focused on improving patient outcomes in different aspects of breast surgery, including nipple sparing mastectomy by utilizing MRI blood flow information to preserve important blood flow to reduce complications. She also is involved with advancing surgical techniques to decrease lymphedema rates after axillary lymph node dissection, with lymphatic preservation and possible LYMPHA procedure by the Plastic Reconstructive Microsurgeons. In addition, she works in close collaboration with Medical Oncology to offer the latest most advanced treatments for breast cancer. -
Electron Kebebew, MD, FACS
Harry A. Oberhelman, Jr. and Mark L. Welton Professor
Current Research and Scholarly InterestsDr. Kebebew’s translational and clinical investigations have three main scientific goals: 1) to develop effective therapies for fatal, rare and neglected endocrine cancers, 2) to identify new methods, strategies and technologies for improving the diagnosis and treatment of endocrine neoplasms and the prognostication of endocrine cancers, and 3) to develop methods for precision treatment of endocrine tumors.
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Amanda Kirane, MD, PhD, FACS, FSSO
Assistant Professor of Surgery (General Surgery)
BioDr. Kirane is a fellowship-trained, board-certified specialist in complex general surgical oncology. She is an Assistant Professor in the Department of Surgery, Section of Surgical Oncology, at Stanford University School of Medicine. Dr. Kirane serves as Director of Cutaneous Surgical Oncology at the Stanford Cancer Center and her clinical practice focuses on the diagnosis and treatment of melanoma and other skin cancers. She partners closely with patients and families to provide the most effective treatment approach possible. For each patient, she tailors an evidence-based, personalized care plan that is innovative, comprehensive, and compassionate.
Dr. Kirane is Principal Investigator of multiple studies in melanoma and mechanisms of resistance to immunotherapy, with focus on myeloid biology. Her current interests include immune response and novel therapies in melanoma, predictive modeling of patient responses using organoid technology, and translational biomarker development. She has led research into immune therapy for earlier stage melanoma using regionally directed therapy to augment immune response in melanoma and trials in surgical care in melanoma.
The National Institutes of Health, American Society of Clinical Oncology, the Melanoma Research Alliance, and others have funded her research. She has co-authored articles on her discoveries in the Journal of Clinical Investigation, Nature Communications, Nature Genetics, Cancer Research, Journal of Surgical Oncology, Annals of Surgery, Annals of Surgical Oncology, and elsewhere. Topics include intratumoral therapy, biomarker development, macrophage biology in melanoma and immunotheraputic resistance, and patient-derived organoid modeling. Dr. Kirane has presented updates on the management of melanoma and other cancers to her peers at meetings of the American College of Surgeons, Society of Surgical Oncology, and Society for Immunotherapy in Cancer.
Dr. Kirane has earned awards for her achievements in clinical care, research, and scholarship. The Society for Immunotherapy of Cancer, Society of Surgical Oncology, Memorial Sloan Kettering Cancer Center, and other prestigious organizations have honored her work. She is a fellow of the American College of Surgeons (FACS) and Society of Surgical Oncology (FSSO). She is a member of the Society for Immunotherapy of Cancer, American Association of Cancer Research, Society for Melanoma Research, Connective Tissue Oncology Society, Association of Academic Surgeons, and Association of Women Surgeons.
She volunteers her time and expertise on behalf of the Melanoma Research Foundation, members of her community in need, STEM programs for girls, and other initiatives. She also is fellowship trained in Physician Wellness and Wellbeing and teaches somatic technique, mindfulness-based stress reduction, meditation, and breathwork. -
Lisa Marie Knowlton, MD, MPH, FACS, FRCSC
Associate Professor of Surgery (General Surgery)
BioDr. Knowlton is an Associate Professor of Surgery and an Acute Care Surgeon whose practice encompasses trauma surgery, emergency general surgery and surgical critical care. She is an NIH and ARPA-H funded researcher whose focus is on improving access to innovative, high-quality surgical care. She obtained her medical degree at McGill University and completed her general surgery residency at the University of British Columbia in Vancouver, Canada. Her desire to understand varied healthcare systems and develop policy solutions led her to obtain an M.P.H. at the Harvard T.H. Chan School of Public Health and complete a research fellowship at the Harvard Humanitarian Initiative. After training as a Surgical Critical Care fellow at Stanford University Medical Center, she joined the faculty as an Assistant Professor of Surgery in early 2018. She was promoted to Associate Professor in the University Medical Line in 2023. Her institutional leadership roles include serving as the Unit Based Medical Director of the Surgical Intensive Care Unit, the Associate Vice Chair of Research for the Stanford Department of Surgery, the SHC Surgical AI Lead for Early Clinical Deterioration, and the Associate Program Director for the Surgical Critical Care fellowship.
Dr. Knowlton is board certified by the American Board of Surgery and the Royal College of Physicians and Surgeons of Canada. Dr. Knowlton’s areas of clinical interest include developing safe surgical solutions for anatomic visualization in the operating room, artificial intelligence prediction tools for detection early clinical deterioration of surgery patients, optimizing the management of critically ill patients and reducing venous thromboembolism events.
Her research focuses on improving access to high-quality and high-value surgical care, merging expertise in health economics, and artificial intelligence to implement surgical innovations and health policy interventions. She leads novel work with the Department of Health Care Services focused on improving healthcare access and utilization through emergency Medicaid programs.
Dr. Knowlton’s research lab (https://med.stanford.edu/knowlton-lab.html) is funded by the Advanced Research Projects Agency for Health (ARPA-H), the National Institute of Health (NIMHD) through R21 and R01 grants, and the California Violence Prevention Center. She has also held funding through PCORI, the Department of Defense, the American College of Surgeons (the 17th C. James Carrico Faculty Research Fellowship), and the American Association for the Surgery of Trauma (AAST).
https://surgery.stanford.edu/news2/Knowlton-ARPA-H.html
She is active in national and international professional surgical societies, and recently served as the inaugural Chair of the Associate Member Council of the AAST. Dr. Knowlton has been recognized by the Association of Women Surgeons as both a ‘Shining Star’ and ‘Breaking the Glass Ceiling’ Leadership Scholar. She is also an American College of Surgeons Health Policy Scholar. Most recently, Dr. Knowlton was also selected as the 2023-24 U.S. ambassador for the James IV Surgical Association Traveling Fellowship program, where she will travel internationally to foster clinical and research collaborations. -
James R. Korndorffer, Jr. MD, MHPE, FACS
Professor - University Medical Line, Surgery - General Surgery
BioJames R Korndorffer Jr MD MHPE FACS joined the Stanford Department of Surgery in December 2017 as the inaugural Vice Chair of Education. Dr. Korndorffer received his undergraduate degree in Biomedical Engineering from Tulane University where he graduated cum laude. He returned to Florida and received his medical degree from the University of South Florida College of Medicine. While there he served as class vice president and was selected as a student member for the LCME reaccreditation committee. His general surgery internship and residency was completed at The Carolinas Medical Center in Charlotte, NC.
Upon completion of his residency, Dr. Korndorffer went into private practice however his interest in teaching was so strong that after 8 years, he left a successful private practice and joined the faculty at Tulane University School of Medicine as a fellow in minimally invasive surgery and as an instructor in surgery. At the completion of the fellowship, he chose to stay at Tulane and joined the faculty as an Associate Professor of Surgery in 2005. He achieved the rank of Professor of Surgery in 2010. While at Tulane he served in numerous leadership roles. He was Vice Chair of the surgery department from 2012-17 as well as the Program Director for the surgical residency from 2006-17. As program director, he was responsible for redesigning the educational experience of the surgical residency after the catastrophic events of Hurricane Katrina. Additional medical school wide leadership roles he held included Assistant Dean for Graduate Medical Education (assistant DIO) and founding Medical Director for the Tulane Center for Advance Medical Simulation. Because of his passion for education, while working full time at Tulane, Dr. Korndorffer completed his Masters in Health Professions Education at the University of Illinois, Chicago.
He is actively involved in numerous national societies including service to the American Board of Surgery through membership on the editorial board of the Surgical Council on Resident Education and the EPA revision workgroup and EPA writing group. He serves as the inaugural chair of the research division for the Association for Program Directors in Surgery, and the inaugural co-chair of the Education Council for the Society of American Gastrointestinal and Endoscopic Surgeons. He also serves on the Board of Directors for SAGES. He has served the American College of Surgeons in numerous capacities including the ACS-AEI as Recorder, Program Chair and Research Committee Chair and as a member of the faculty development committee. He serves as an Associate Editor for the Journal of Surgical Education. He was recently inducted to membership in the Academy of Master Surgeon Educators.
He was one of the early adopters of the use of simulation for surgical training and has been actively involved in surgical education research since 2003. Some of the early work using proficiency-based training instead of time base training for skill acquisition. This has now become the norm. He is now actively involved investigating the role simulation education has in patient quality and healthcare system safety.
Dr. Korndorffer has published over 100 papers in peer reviewed journals, 10 book chapters and has had over 150 presentations at national meetings. Dr. Korndorffer’s clinical interests include minimally invasive surgery for gastrointestinal disorders and hernias. His research interests include surgical education, surgical simulation, patient safety, and patient care quality. -
Byrne Lee, MD FACS
Clinical Professor, Surgery - General Surgery
BioDr. Lee is a native of New York City. He attended the Sophie Davis School of Biomedical Education at the City College of New York and received his medical degree from New York Medical College. He completed general surgery residency training at Lenox Hill Hospital and fellowship training in surgical oncology at the City of Hope National Cancer Center. Dr. Lee led the Peritoneal Surface Malignancy Program at City of Hope prior to joining Stanford in 2019.
Dr. Lee is a surgical oncologist who specializes in the treatment of gastrointestinal malignancies. He has dedicated his clinical practice to the surgical management of metastatic disease, particularly to the liver and peritoneum. He has expertise in delivering regional cancer therapies such as heated intraperitoneal chemotherapy (HIPEC). Additionally, he performs surgery for cancers of the stomach, liver, pancreas, small intestine, colon, and soft tissue sarcoma. He utilizes minimally invasive and robotic surgical techniques when appropriate.
Dr. Lee leads the Regional Cancer Therapies program at Stanford. The program implements and develops novel treatment strategies for patients affected with peritoneal malignancies and oligometastatic disease to the liver. His research focus is on clinical outcomes of multidisciplinary management for gastric, hepatobiliary, and peritoneal surface malignancies. He is a member of a national consensus group performing collaborative research and developing clinical trials for HIPEC surgeries. -
Yen-Chung Andrew Lee
Clinical Assistant Professor (Affiliated), Surgery - General Surgery
BioDr. Yen-Chung Andrew Lee is a board certified surgeon who practices General and Bariatric Surgery in Pleasanton. He completed a fellowship in Advanced Laparoscopic Surgery at Brown University.
Dr. Lee's personal interests include golfing, fishing, cars, drawing, and playing violin. -
April Leyson
Section Administrative Supervisor, Surgery - General Surgery
Current Role at StanfordAdministrative Associate
For Drs. Dan E. Azagury, Byrne Lee, Carolyn Seib, and Dr. George Poultsides
Stanford Department of Surgery
Section of Bariatric and Minimally Invasive Surgery
& Section of Surgical Oncology -
Cara A. Liebert, MD, FACS
Clinical Assistant Professor, Surgery - General Surgery
Current Research and Scholarly InterestsCurrent research interests include Surgical Education and Minimally Invasive Surgery. Primary research focus is the development, implementation, and collection of validity evidence for ENTRUST, an online virtual patient simulation platform for assessment of clinical decision-making.
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Dana Lin, MD
Clinical Associate Professor, Surgery - General Surgery
BioDr. Lin is a fellowship-trained endocrine surgeon who specializes in surgery of the thyroid, parathyroid, and adrenal glands. After receiving her undergraduate degree from Stanford University, Dr. Lin pursued her medical and surgical training on the east coast, where she completed her residency in general surgery at Rutgers Robert Wood Johnson Medical School and fellowship in endocrine surgery at the Harvard-affiliated Massachusetts General Hospital.
Dr. Lin's clinical practice focuses on the surgical management of benign and malignant thyroid conditions, hyperparathyroidism, adrenal tumors, as well as melanoma and advanced skin cancers. She is skilled in mini-incision, minimally invasive (laparoscopic), and remote access (scarless endoscopic) surgery as well as lymph node dissection for cancer. She currently serves as Director of the Parathyroid Center within the Endocrine Oncology Program at Stanford.
Dr. Lin strives to deliver expert surgical care to patients with utmost humanism and compassion. She considers it a privilege and joy to be entrusted as one’s surgeon and is committed to ensuring the best clinical and cosmetic outcome for each of her patients. Dr. Lin welcomes patients at Stanford Cancer Center in Palo Alto as well as Stanford Health Care in Emeryville and Pleasanton (ValleyCare). -
Yi Liu
Postdoctoral Scholar, General Surgery
BioDr. Liu is a postdoc fellow at Stanford University School of Medicine. She is also a Chinese board-certificated, fellowship-trained clinician with demonstrated clinical and research expertise in Critical Care Medicine and interdisciplinary studies of nanomedicine.
She received her residency and fellowship training (Emergency Medicine & Intensive Care Medicine) at Chongqing Medical University (China) and sub-internship in Sorbonne Université (Pitié-Salpêtrière Hospital, Paris, France) and Tiantan Hospital (Beijing, China). In addition to her MD degree, She undertook PhD training in nanomedicine for cancer/infectious disease early detection and to identify potential new treatments for severe infectious/cancer patients. Her postdoctoral training in nano-enabled therapeutic at Stanford has helped advance her knowledge of how nanotechnology improve the application of nanomedicine in early diagnosis of diseases. She has published numerous articles on a wide range of nanoplatforms-related topics. She has also received several academic and teaching awards related to clinical skills and research on molecular imaging. -
Daphne P. Ly, MD, FACS
Affiliate
Current Research and Scholarly Interests1. Integrate machine learning with electronic health record system to improve work flow and achieve individualize cancer care based on current evidence.
2. Apply Cancer Genetics in cancer treatment and cancer risk reduction. -
Paul M. Maggio, MD, MBA, FACS
Clinical Professor, Surgery - General Surgery
BioDr. Paul Maggio is a Professor of Surgery, Chief Quality Officer for Stanford Health Care, and Associate Dean for Quality and Clinical Affairs in the Stanford School of Medicine. He trained in General Surgery at Brown University and obtained advanced training in Adult Surgical Critical Care and Trauma at the University of Michigan. He holds a Master of Business Administration from the University of Michigan and is triple board certified in General Surgery, Critical Care, and Medical Informatics. His clinical focus is on Acute Care Surgery and Critical Care Medicine, and his academic career has been centered on quality improvement, patient safety, and the application of systems engineering to enhance the delivery of healthcare.
Dr. Maggio participates in the National Committee on Healthcare Engineering for the American College of Surgeons and has served on the Baldrige Board of Examiners to recognize organizations with the highest presidential honor for performance excellence. Dr. Maggio received the SHC Board of Hospital Director’s Denise O’Leary Award for Clinical Excellence in 2013 -
Vanni Manthiram
Clinical Assistant Professor (Affiliated), Surgery - General Surgery
BioDr. Vanni Manthiram is board certified in General Surgery. She practices a broad range of general surgery including breast, colon, gall bladder, hernia, and minimally invasive surgery.
She is also a member of several professional organizations, including the American College of Surgeons and the American Society of Breast Surgeons.
Dr. Manthiram became a surgeon because it is extremely rewarding as patients are very grateful and often feel better immediately. She also enjoys making sure her patients understand the planned procedure.
Her personal interests include watching football, hiking, fitness, and spending time with family. -
Arden Morris, MD, MPH, FACS
Robert L. and Mary Ellenburg Professor of Surgery, and Professor, by courtesy, of Health Policy
On Partial Leave from 01/01/2025 To 03/31/2025BioArden M. Morris, MD, MPH is Vice-Chair for Clinical Research, the Robert L. and Mary Ellenburg Professor of Surgery, and by courtesy Professor of Health Policy at the Stanford School of Medicine. She is Director of the S-SPIRE Center, a health services research collaborative to study patient-centered care, clinical optimization, and health care economics. In her own work, Dr. Morris uses quantitative, qualitative, and mixed research methods to focus on quality of and equity in cancer care. To that end, she currently is funded by American Cancer Society and NIH to study access to care, clinical outcomes, and policy related to insurance design. Dr. Morris currently serves on the American Joint Commission on Cancer, the NIH Special Emphasis Panel “Topics in Health Services Research: Big Data, Health Information Technology, and Clinical Informatics,” and as Associate Editor for Surgery at JAMA Network Open.
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Jasmin Moshfegh
Postdoctoral Scholar, General Surgery
BioJasmin Moshfegh is a Postdoctoral Scholar at the Department of Surgery at Stanford University. She received her PhD in Health Policy from Stanford University in 2024. In her current research she studies the consequences of healthcare innovation. Jasmin is a previous AHRQ T32 fellow and an AHRQ R36 awardee.
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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. -
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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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.
