School of Medicine


Showing 1-23 of 23 Results

  • David Kahn, M.D.

    David Kahn, M.D.

    Clinical Associate Professor, Surgery - Plastic & Reconstructive Surgery

    Current Research and Scholarly InterestsCosmetic surgery and the study of changes associated with the aging appearance of the face.

    1. Analysis and development of new procedures for aesthetic surgery of the face
    2. Analysis of the changes the face undergoes with age in the bone and soft tissues
    3. Analysis of techniques for rhinoplasty
    4. Evaluation of optimal techniques for aesthetic and reconstructive breast surgery

  • Nathan Kalinowski, D.M.D.

    Nathan Kalinowski, D.M.D.

    Clinical Assistant Professor, Surgery - Plastic & Reconstructive Surgery

    BioDr. Nathan Kalinowski is a Hospital Dentist and Clinical Assistant Professor in Dental Medicine and Surgery. He performs medically necessary dental clearance and extractions for patients preparing for cardiac surgery, radiation therapy, or organ transplantation. He also performs surgical treatment of infection and trauma to the teeth and supporting alveolar bone including reconstruction using dental implants.

  • Mardi Karin, MD, FACS

    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.

  • Karthikeshwar Kasirajan (Kasi)

    Karthikeshwar Kasirajan (Kasi)

    Clinical Professor, Surgery - Vascular Surgery

    BioDr. Kasirajan is a board-certified, fellowship-trained vascular surgeon. Also known as Dr. Kasi, he is a clinical professor of vascular surgery at Stanford University School of Medicine.

    Dr. Kasirajan preserves limbs, facilitates access to dialysis, and helps his patients manage conditions such as aneurysms, varicose veins, thoracic outlet syndrome, and deep vein thrombosis. Many of his limb preservation patients smoke, have diabetes, or are experiencing renal failure. Dr. Kasirajan’s experience also centers around the treatment of aneurysms and prevention of strokes.

    In all cases, his goal is to provide either noninvasive or minimally invasive management whenever possible. He performs open surgery only when it is the best option. Dr. Kasirajan treats many patients with stents and stent grafts, which can shorten hospital stays and recovery times.

    Dr. Kasirajan (Kasi) receives referrals of patients from primary care physicians, nephrologists, podiatrists, cardiologists, woundcare specialists, diabetologists, neurologists, and other specialists. He welcomes referrals as early as possible, ideally before patients become symptomatic. A strong proponent of doing early screening for peripheral artery disease, Dr. Kasirajan advocates for the use of the ankle-brachial index (ABI) in routine physical examinations. When providers detect an imbalance between leg and arm blood pressure, Dr. Kasirajan can help create customized strategies to address the cause before the problem worsens.

    In addition to offering excellent vascular care to the community, Dr. Kasirajan joined Stanford to continue pursuing his research interests. He has conducted research into advances in minimally invasive procedures for stroke prevention and for aneurysm management. His research has also focused on how to improve surgery outcomes to help patients suffering from peripheral vascular disease. Dr. Kasirajan has been the investigator in over 40 multicenter studies involving new stent graphs, thrombectomy catheters, and other advances in endovascular technology.

    Dr. Kasirajan has made more than 100 presentations worldwide on minimally invasive vascular surgery techniques and preventive care in the vascular patient. He has spoken at multiple conferences including the Society for Vascular Surgery, Peripheral Vascular Society, and the South Asian American Vascular Society. He has earned numerous honors for his academic achievements, including the prestigious Alpha Omega Alpha award for medical student and resident education.

    As the author of more than 120 journal articles, Dr. Kasirajan’s work has appeared in the Journal of Vascular Surgery, Endovascular Today, Pharmacogenomics Journal, Catheter Cardiovascular Intervention, and many other publications. He also has authored 20 book chapters in textbooks including Medical Management of the Surgical Patient 5th Edition, Advances in Phlebology and Venus Surgery Volume 1, Current Therapy in Vascular Surgery, Mastery of Surgery, and many more.

    Dr. Kasirajan has served on the editorial boards of the Journal of Endovascular Therapy, Annals of Vascular Surgery, International Journal of Angiology, and other publications.

  • David Kauvar

    David Kauvar

    Clinical Professor, Surgery - Vascular Surgery

    BioDavid Kauvar, MD, MPH is an academic vascular surgeon who received his undergraduate medical education on active duty in the US Army at the Uniformed Services University of the Health Sciences in Bethesda, Maryland. He completed his residency in general surgery at Brooke Army Medical Center in San Antonio, Texas, a surgical research fellowship at the United States Army Institute for Surgical Research, and a clinical fellowship at the University of Utah. His 24-year career as a wartime and vascular surgeon culminated with his retirement in 2022. During his tenure in the military, Dr. Kauvar was a respected surgical educator and became an academic leader in the fields of military and vascular trauma. He earned a Master of Public Health degree from the University of North Texas and was inducted into the Order of Military Medical Merit for his contributions to military medicine.

    Dr. Kauvar has served as a general surgery residency associate program director for research and as a residency program director, chair of an institutional review board, and chief of a vascular surgery service. He commanded a combat surgical unit in Afghanistan and led two multimillion-dollar Department of Defense combat casualty care research labs. He has authored over eighty peer-reviewed publications and numerous textbook chapters, has presented research at dozens of national and international surgical meetings and has been invited to speak internationally about vascular trauma as an acknowledged expert in the field.

    Dr. Kauvar is now Clinical Professor of Surgery in the Division of Vascular Surgery at Stanford University School of Medicine with his primary clinical responsibilities at Santa Clara Valley Medical Center in San Jose, California. He is married and has one son.

  • Electron Kebebew, MD, FACS

    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.

  • Amanda Kirane, MD, PhD-c, FACS, FSSO

    Amanda Kirane, MD, PhD-c, 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 pPofessor 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, 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 advances in non-surgical management of melanoma. 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, minfulness-based stress-reduction, meditation, and breathwork.

  • Varvara A. Kirchner

    Varvara A. Kirchner

    Associate Professor of Surgery (Abdominal Transplantation) and, by courtesy, of Pediatrics

    BioDr. Kirchner completed her medical school, surgical residency and multi-organ transplant fellowship in adult and pediatric liver, pancreas, kidney transplantation and total pancreatectomy with islet auto-transplantation at the University of Minnesota. She underwent further training in living donor liver transplantation and hepatobiliary surgery at the Asan Medical Center, Seoul, South Korea. Her clinical practice involves living and deceased donor liver and kidney transplantation in adult and pediatric patients as well as total pancreatectomy with islet auto-transplantation for patients with chronic and acute recurrent pancreatitis. She currently serves as Surgical Director of the Islet Cell Auto-Transplant at Stanford Children’s and Associate Director of the Living Donor Liver Transplant Program at the Division of Abdominal Transplantation. Dr. Kirchner’s research focuses on the biology of aging, cellular and solid organ transplantation. Her specific interests are in auto-islet transplantation, iPSC-derived hepatocyte therapies and liver regeneration. Dr. Kirchner's research on the impact of donor age on generation of iPSC-derived hepatocyte-like cells is supported by the NIA K08 Faculty Development Award. She is an active member of the American Society of Transplant Surgeons and the International Liver Transplantation Society.

  • Derek M. Klarin, MD

    Derek M. Klarin, MD

    Assistant Professor of Surgery (Vascular Surgery)

    BioDr. Klarin is a fellowship-trained vascular surgeon.

    For each patient, he develops a comprehensive, compassionate care plan customized to individual needs. His goal is to help each patient achieve the best possible health and quality of life.

    Dr. Klarin performs the full spectrum of diagnostic and treatment procedures for cardiovascular conditions. He treats carotid disease, peripheral artery disease, abdominal aortic aneurysm, venous thromboembolism, and other vascular diseases.

    To help advance his field, Dr. Klarin has conducted research. The American Heart Association, Howard Hughes Medical Institute, and other organizations have provided grants to support his studies. He also has co-patented advances in predicting and scoring risk factors for cardiovascular disease and other conditions.

    He has published extensively and co-authored more than 50 articles on new techniques and technology for diagnosing and treating cardiovascular disorders. His work has appeared in the Journal of Vascular Surgery, Circulation, JAMA, Nature Medicine, and other peer-reviewed journals.

    He also has made many invited presentations to his peers. He has spoken at the Vascular Research Initiatives Conference presented by the Society for Vascular Surgery, the American Heart Association Scientific Sessions, and the annual meeting of the American Society for Human Genetics. Topics include risk factors for peripheral artery disease, the benefits of ultrasound screening for abdominal aortic aneurysm, and the impact of genetic variations on cardiovascular disease.

    He is a member of the Global Lipids Genetics Consortium. He is a founding member of the Abdominal Aortic Aneurysm Genetics Consortium and the Peripheral Artery Disease Genetics Consortium. He is also a candidate member of the Society for Vascular Surgery.

  • Lisa Marie Knowlton, MD, MPH, FACS, FRCSC

    Lisa Marie Knowlton, MD, MPH, FACS, FRCSC

    Associate Professor of Surgery (General Surgery)

    BioDr. Knowlton is a trauma and critical care surgeon and NIH funded public health researcher whose focus is on improving access to and quality of care for trauma and surgical patients. 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 solutions for vulnerable surgical populations 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. Most recently, she trained as a Surgical Critical Care fellow at Stanford University Medical Center and joined the faculty as an Assistant Professor of Surgery in early 2018.

    Dr. Knowlton's research focuses on improving health equity, addressing barriers in access to care and reducing disparities among vulnerable surgical populations, including underinsured trauma patients. She is also investigating the financial burden that injury imposes upon both patients and hospitals, with the goal of finding economically sustainable strategies for ensuring best outcomes among trauma patients. These include the study of emergency Medicaid programs at the state and national level. Dr. Knowlton’s work has been funded by the American College of Surgeons (the 17th C. James Carrico Faculty Research Fellowship), the American Association for the Surgery of Trauma (AAST) and the NIH. She has received an R21 by the National Institute on Minority Health and Health Disparities, and most recently an R01 for her work (2023-2028). Dr. Knowlton is board certified by the American Board of Surgery and the Royal College of Physicians and Surgeons of Canada. She is a member of the AAST Diversity and Inclusion and Healthcare Economics Committees, and also serves on the Association for Academic Surgery’s Publications Committee. She was the inaugural Chair of the Associate Member Council of the AAST and currently serves as the Associate Vice Chair of Research for the Stanford Department of Surgery. She was recently recognized by the AAST by receiving the 2023 Canizaro award for best presentation and manuscript at the annual meeting. Dr. Knowlton was also selected as the 2023-24 U.S. recipient of the James IV Surgical Association Traveling Fellowship.

  • James R. Korndorffer, Jr. MD, MHPE, FACS

    James R. Korndorffer, Jr. MD, MHPE, FACS

    Associate Professor of Surgery (General Surgery)

    BioJames R. Korndorffer, Jr. MD MHPE FACS is Associate Professor and Vice Chair of Education in the Department of Surgery at Stanford University. Previously he served as Vice chair of Surgery at Tulane University Health Sciences Center in New Orleans. While at Tulane he also was the Surgery Residency Program Director, the assistant dean for Graduate medical education and the Medical Director of the Tulane Center for Advanced Medical Simulation and Team Training. He received his undergraduate degree in Biomedical Engineering from Tulane University, his Medical Degree from the University of South Florida College of Medicine and his Masters in Health Professions Education from the University of Illinois Chicago. His general surgery residency was completed at The Carolinas Medical Center in Charlotte, North Carolina and his Advanced Laparoscopic Fellowship was completed at Tulane University.

    He is actively involved in numerous national societies including the American College of Surgeons, the Society for Gastrointestinal and Endoscopic Surgeons, the Association for Surgical Education, and the Association for Program Directors in Surgery. He serves on the American College of Surgeons Committee on Validation of Surgical Knowledge and Skills, SAGES Fundamentals of Laparoscopic Surgery and Development Committees and also serves as the APDS research committee vice chair.

    Dr. Korndorffer has published over 60 papers in peer reviewed journals, 5 book chapters and has presented at over 100 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.

  • Sheri Krams

    Sheri Krams

    Senior Associate Dean, Graduate Education and Postdoctoral Affairs and Professor of Surgery (Abdominal Transplantation)

    Current Research and Scholarly InterestsResearch Interests: 1) NK Cell Responses to EBV, 2) Exosomes in Immune Responses, 3) Plasmacytoid Dendritic Cell-Mediated Graft Prolongation, 4)Transplant Immunology

  • Thomas M. Krummel, MD, FACS/FAAP

    Thomas M. Krummel, MD, FACS/FAAP

    Emile Holman Professor, Emeritus

    Current Research and Scholarly InterestsSurgical Innovation, Simulation and Virtual Reality in Surgical Education, Fetal Healing-Cellular and Biochemical Mechanisms