School of Medicine


Showing 1-100 of 143 Results

  • M. Usman Ahmad

    M. Usman Ahmad

    Postdoctoral Scholar, General Surgery

    BioDr. Ahmad is currently a postdoctoral research fellow under the mentorship of Prof. George Poultsides in the Section of Surgical Oncology at Stanford University. In addition, he engages in basic scientific inquiry in tumor immunology under Prof. Amanda Kirane. He entered his current position after completing 2 years of general surgical training at Stanford University and the University of Colorado.
    Dr. Ahmad received his medical education at the University of South Florida (USF) where he was the recipient of numerous scholarships and awards including the Galen Scholarship, SELECT Koch Award, Anderson SELECT Scholarship, and Osler Award. During medical school, Dr. Ahmad was productive in both basic science and research resulting in 3 peer-reviewed publications and induction into the Robert A. Good Honor Society bestowed upon the top 10% of medical students in research. Dr. Ahmad also received the Alpha Omega Alpha Carolyn A. Kuckein Fellowship to continue policy work on improving the organ supply for Americans requiring organ transplants. Early in medical school, he conducted basic scientific work transplanting immune cells on metastatic melanoma in a mouse model while a visiting researcher under Prof. Gavin Pettigrew & Prof. Reza Mottalebzadeh in the Department of Surgery at the University of Cambridge in the United Kingdom. Dr. Ahmad was also active in health policy work culminating in a role as Vice Chair of the Medical Student Section Committee of Legislation & Advocacy for the American Medical Association with several roles at university, county, and state levels in both Florida and Pennsylvania. Dr. Ahmad has an extensive record of volunteer activity serving at risk populations in the United States during medical school including HIV, LGBTQ, pediatric, and homeless populations. In addition, he spent time mentoring and reviewing scholarship applications for Greenhouse Scholars, program focused on developing under-resourced high performing American students from high school to first career and beyond.
    Prior to medical school, Dr. Ahmad had a career in the life sciences industry after receiving a degree in Economics from Northwestern University where he primarily focused on bringing new medical technology to market. Dr. Ahmad was part of a team selected by the Chicago Chamber of Commerce as the most innovative company in 2010 winning a state-wide competition. He also volunteered his time as a board member re-vitalizing a 25 year old arts organization in Chicago and helping to develop a business incubator in Detroit shortly after the Great Recession.
    Dr. Ahmad is a native Chicagoan hailing from a large family raised near the Southside of Chicago. In his free time he enjoys cooking, reading, history, traveling, working on cars, and developing his interest in aviation.

  • Jean Jingzhi Bao

    Jean Jingzhi Bao

    Clinical Assistant Professor, Surgery - General Surgery

    BioDr. Jean Bao is a board-certified, fellowship-trained general surgeon who specializes in breast surgical oncology. She is a clinical assistant professor of surgery at Stanford University School of Medicine.

    Dr. Bao’s clinical interests include treatment of men and women who have breast cancer, benign breast disease, genetic mutations, family history of breast cancer, or other breast cancer risk factors. Procedures performed by Dr. Bao include skin- and nipple-sparing mastectomies, partial mastectomies, oncoplastic procedures, benign breast lesion excisions, axillary node dissections, and sentinel lymph node biopsies. Dr. Bao is certified in breast ultrasound and utilizes this technology to visualize and biopsy breast masses.

    She completed a breast surgical oncology fellowship at Cedars-Sinai Medical Center under the mentorship of one of the world’s foremost experts in the field. Prior to joining Stanford, Dr. Bao practiced at the University of Chicago as an assistant professor of surgery in the Breast Center.

    Dr. Bao works closely with medical oncology, radiation oncology, plastic surgery, genetics, and other breast cancer specialists in a multidisciplinary setting to provide high quality, evidence-based, and individualized care. Dr. Bao is a strong advocate for patient education and empowerment and strives to deliver compassionate care to patients and their families.

    Her research has focused on the management of breast cancer in older patients, male breast cancer, high-risk breast cancers, and axillary lymph node management after preoperative chemotherapy. She also has strong research interests in intraoperative 3D breast imaging, the benefits and risks of prophylactic mastectomy, fertility issues in young women with breast cancer, and the role of endocrine therapy in breast cancer. She has delivered presentations on a wide range of topics related to breast cancer at national and regional meetings. The results of her research have been published in JAMA, Annals of Surgical Oncology, Breast Journal, Clinical Imaging, and elsewhere.

    For her scholarship and research achievements, Dr. Bao has won numerous honors and awards. She earned the Excellence in Teaching Award twice from the University of Chicago Department of Surgery. She was also named a Lynn Sage Breast Cancer Symposium Scholar, where she joined other medical, surgical, and radiation oncologists who lead in the field.

    Dr. Bao is a fellow of the American College of Surgeons and a member of the American Society of Breast Surgeons. She is a member of Breast Disease Site Work Group in the Society of Surgical Oncology, and serves as the society’s external liaison to the American College of Radiology Appropriateness Criteria Breast Imaging Panel. She previously held the position of chair of the Cancer Committee at University of Chicago Medicine.

  • Tiffany E. Chao, MD, MPH, FACS

    Tiffany E. Chao, MD, MPH, FACS

    Clinical Associate Professor (Affiliated), Surgery - General Surgery
    Staff, Surgery - General Surgery

    BioDr. Tiffany E. Chao is a general surgeon at Santa Clara Valley Medical Center (SCVMC), a Clinical Associate Professor of Surgery (Affiliated) in the Stanford Department of Surgery (Division of General Surgery), and an Adjunct Professor in the university's Program in Human Biology. At SCVMC, Dr. Chao is the Site Director for the Stanford medical student surgical clerkship and the Associate Site Director for the Stanford General Surgery Residency Program. Her interests in surgery include minimally invasive foregut, hernia, and colorectal surgery, in addition to acute care & trauma surgery.

    At Stanford, she is the co-director of the undergraduate course HUMBIO 29: Introduction to Global Health and the medical school seminar SURG 236: Seminar in Global Surgery and Anesthesia, both Winter Quarter classes. Her other roles at Stanford include Faculty Fellow with Center for Innovation in Global Health and the Clinical Competency Committee of the General Surgery Residency. Dr. Chao's research interests are in global surgery, including cost-effectiveness analysis, surgical device innovation, and expansion of surgical delivery for low-income populations through surgical workforce and infrastructure development.

    Dr. Chao holds dual Bachelor's degrees in Symbolic Systems and Psychology from Stanford University, as well as MD and MPH degrees from Mount Sinai School of Medicine, where she graduated with Alpha Omega Alpha honors. She completed General Surgery residency at the Massachusetts General Hospital in Boston, the Paul Farmer Global Surgery Research Fellowship at Harvard Medical School's Program in Global Surgery and Social Change, and the CTSA/Lucile Packard Innovation Fellowship at Stanford Biodesign, eventually becoming a co-founder of Zenflow, Inc., a venture-backed medical device company working in minimally-invasive therapy for prostate disease.

    In addition to her roles at Stanford and SCVMC, she serves as the Editor in Chief of the Journal of Medical Insight and a founding partner of 4i Ventures.

  • kovi bessoff

    kovi bessoff

    Affiliate, Dean's Office Operations - Dean Other
    Resident in Surgery - General Surgery

    BioMy clinical interests include trauma/critical care and acute care surgery. I am interested in how the application of innovative solutions (both device and informatics based) can improve patient care and outcomes in developed as well as developing world settings.

  • Jeff Choi

    Jeff Choi

    Masters Student in Biomedical Informatics, admitted Autumn 2020
    Resident in Surgery - General Surgery

    BioGeneral Surgery Resident (2017-) in professional development time. MS in Epidemiology & Clinical Research (2019-2020), and Biomedical Informatics (2020-). Ex-president of SWAT (Surgeons Writing About Trauma). My main research focus is using various machine learning algorithms to develop explainable, practical, and useful prediction tools.

    My passions:
    1) Re-evaluating dogma with data
    2) Reducing the data to bedside gap
    3) Fostering collaboration among the next generation of surgeon-data scientists

  • Robin Cisco, MD

    Robin Cisco, MD

    Clinical Assistant Professor, Surgery - General Surgery

    BioDr. Robin Cisco is a board certified general surgeon and fellowship-trained endocrine surgeon. She specializes in surgery of the thyroid, parathyroid and adrenal glands and has expertise in lymph node dissection for thyroid cancer. Dr Cisco received her medical degree at Duke University before moving to Stanford for general surgery residency. During her residency, she completed a two-year research fellowship in surgical oncology, with a focus on cancer immunology.

    After residency, she completed an endocrine surgery fellowship with the internationally recognized UCSF Division of Endocrine Surgery. She is the author of multiple publications related to endocrine surgery and surgical oncology and has an interest in minimally invasive approaches to thyroid, parathyroid and adrenal surgery. She is currently the Physician Leader of Stanford Health Care's Endocrine Oncology Cancer Care Program (CCP).

    Dr. Cisco focuses on providing outstanding surgical care in an environment that is supportive of her patients and their families. She enjoys patient education and preoperative counseling, and seeks to lessen the anxiety that often comes with a recommendation for surgery. She currently sees patients both in San Jose at Stanford's Cancer Center South Bay and in Palo Alto in the Endocrine Oncology and Surgery clinic.

  • Aaron J. Dawes, MD, PhD

    Aaron J. Dawes, MD, PhD

    Assistant Professor of Surgery (General Surgery)

    BioDr. Dawes is a board-certified, fellowship-trained colon and rectal surgeon. He is also an Assistant Professor in the Department of Surgery, Division of General Surgery at Stanford University School of Medicine.

    Dr. Dawes treats a wide variety of conditions involving the colon, rectum, and anus, always leveraging the latest evidence and technologies. He is fully trained in minimally invasive surgical techniques--including laparoscopic, robotic, and trans-anal minimally invasive surgery--and strives to employ them, whenever possible, in an effort to reduce pain and shorten recovery.

    In addition to his clinical work, Dr. Dawes is a health services researcher, receiving his Ph.D. in Health Policy and Management from the UCLA Fielding School of Public Health. His research focuses on policy development, measurement, and evaluation for patients with colorectal conditions. He is particularly interested in using data to drive policy interventions aimed at reducing disparities in quality, access, and value.

    Prior to joining Stanford, Dr. Dawes completed a residency in General Surgery at the University of California, Los Angeles followed by a fellowship in Colon and Rectal Surgery at the University of Minnesota. He has authored articles in the Journal of the American Medical Association (JAMA), Cancer, Diseases of the Colon and Rectum, Health Services Research, and JAMA Surgery. His work has also been featured in the Los Angeles Times, the Daily Press, and HealthDay News.

    A native of the San Francisco Bay Area, Dr. Dawes received his A.B. in Public and International Affairs from Princeton University and his M.D. from Vanderbilt University.

  • Daniel James Delitto, MD, PhD

    Daniel James Delitto, MD, PhD

    Assistant Professor of Surgery (General Surgery)

    BioDr. Delitto is a board certified complex general surgical oncologist with a focus on conditions of the liver, pancreas, and stomach. He is an assistant professor in Stanford Medicine’s Department of Surgery.

    His education includes a decade of postgraduate training in complex general surgical oncology, as well as a PhD in immunology with an emphasis on cancer biology. He completed a clinical fellowship at Johns Hopkins University and continued his research at the postdoctoral level in the laboratory of Dr. Elizabeth Jaffee. His research focus is on advancing the field of cancer immunology and harnessing his findings to improve immunotherapies.

    He was the principal investigator of two studies examining the immune response to pancreatic cancer, including one funded by the National Cancer Institute.

    Dr. Delitto has presented the findings of his research at conferences such as the American Association for Cancer Research, Society for the Immunotherapy of Cancer, American Association of Immunologists, American College of Surgeons, Academic Surgical Congress and Pancreas Club. In addition to cancer immunology, he has also presented work focused on cancer cachexia, surgical outcomes, translational experimental models and a variety of other oncologic topics.

    He has published original work in Nature Communications, the Journal of the National Cancer Institute, Cancer Research, Clinical Cancer Research, and other high impact journals. He is also a reviewer for Annals of Surgery, Scientific Reports, Surgery, Tumor Biology, Journal of Surgical Research, PLOS ONE, and the Journal of Translational Medicine.

    Dr. Delitto has earned numerous honors related to clinical excellence, teaching and research. He is board certified by the American Board of Surgery and a member of the Society of Surgical Oncology, American Association for Cancer Research and American Association of Immunologists.

  • Frederick M. Dirbas, MD

    Frederick M. Dirbas, MD

    Associate Professor of Surgery (General Surgery)

    Current Research and Scholarly InterestsMy research interests are focused on minimizing the impact of breast cancer from a diagnostic and therapuetic standpoint. Breast MRI is a powerful tool to facilitate the screening for and staging of breast cancer, and can be valuable adjunct to guide breast surgery. Oncoplastic surgical techniques optimize cosmesis after breast cancer surgery. Accelerated radiotherapy after lumpectomy decreases radiotherapy treatment times from 6 weeks to just 1 to 5 days.

  • Monica M. Dua, MD

    Monica M. Dua, MD

    Clinical Associate Professor, Surgery - General Surgery

    Current Research and Scholarly InterestsTechnical aspects of minimally invasive pancreatic and liver surgery
    Minimally invasive strategies for the management of pancreatic necrosis
    Management of severe acute pancreatitis – academic vs community treatment
    Multidisciplinary treatment of HCC; institutional barriers to appropriate referral/ care
    Endocrine/exocrine insufficiency after pancreatectomy; volumetric assessment
    Natural history and management of pancreatic cysts

  • Dan Eisenberg, MD, MS

    Dan Eisenberg, MD, MS

    Associate Professor of Surgery (General Surgery)

    Current Research and Scholarly InterestsMinimally Invasive Surgery
    Metabolic-Bariatric Surgery

  • Micaela Esquivel, MD

    Micaela Esquivel, MD

    Clinical Assistant Professor, Surgery - General Surgery

    BioDr. Esquivel is a board-certified, fellowship-trained bariatric and minimally invasive surgeon. She is a clinical assistant professor of surgery at Stanford University School of Medicine. She is also the director of community engagement and outreach for the Stanford Department of Surgery.

    Specialties of Dr. Esquivel include foregut surgery and bariatric surgery. She performs robotic surgery as well as therapeutic surgical endoscopy.

    She is actively building the Bariatric Endoscopy Program of Stanford Health Care. Her goal is to offer procedures such as endoscopic sleeve gastroplasty and endoscopic suturing of the gastric pouch and outlet after gastric bypass for patients experiencing weight regain.

    Dr. Esquivel has a great interest in helping everyone access the care they need. She values work that minimizes disparities and promotes health equity. As the director of community engagement and outreach for the Stanford Department of Surgery, she is committed to working directly with community organizations to ensure long-term changes are sustained. Dr. Esquivel’s role also allows her to form long-term partnerships and collaborate to implement and oversee programs for underserved populations.
    Research interests of Dr. Esquivel range from the global, like minimum rates of surgery to support desirable outcomes, to the more specific, such as weight loss before bariatric surgery. She has studied access to surgical care in California, as well as access to care in Zambia, Guatemala, and other countries.

    Dr. Esquivel has made numerous presentations on surgical care access, among other topics, at conferences including the American College of Surgeons Clinical Congress, Academic Surgical Congress, and the UK’s Royal Society of Medicine. In addition, she has written more than two dozen articles on topics such as surgical outcomes, weight loss before bariatric surgery, and global access to surgical services. Her work has appeared in JAMA, the World Journal of Surgery, Journal of Surgical Research, Journal of Surgical Education, Lancet, and elsewhere.

    Among her many honors, Dr. Esquivel has won the prestigious Samuel L. Kountz Humanitarian Award, awarded to a Stanford resident distinguished by professionalism, compassion, and respect for the dignity of others—attributes shared by the late Dr. Kountz, a trailblazing surgeon and the first African American surgical resident at Stanford. Dr. Esquivel also won the Resident Research Award of the Year in Stanford General Surgery and the Post-Doctoral Fellowship Award from Stanford’s Hispanic Center for Excellence.

    In addition to serving as the director of community engagement and outreach, Dr. Esquivel directs the “Service Through Surgery: Surgeons with an Impact” course in the Stanford University School of Medicine and is the co-chair of the Stanford Department of Surgery Diversity Cabinet.

  • Mary Estakhri

    Mary Estakhri

    Clinical Assistant Professor (Affiliated), Surgery - General Surgery

    BioDr. Mary Estakhri practices General and Bariatric Surgery in Pleasanton. She is a fellow of the American College of Surgeons.

    Dr. Estakhri has also held a number of leadership positions including: Medical Director of Bariatric Surgery at ValleyCare, past chair of the Department of Surgery, and a past board member at the American Cancer Society of Contra Costa County.

    She is a 3rd Degree Black Belt (2nd Dan) for the US International Taekwon-Do Federation.

  • Joseph (Joe) D Forrester MD MSc FAWM

    Joseph (Joe) D Forrester MD MSc FAWM

    Assistant Professor of Surgery (General Surgery)

    Current Research and Scholarly InterestsI am broadly interested in research exploring the care of the injured patient both in high- and low-resource settings. I have specific on-going projects assessing surgical site infection surveillance in low-resource settings, and surgical management of acute and chronic non-union rib fractures.

  • John V. Gahagan, MD, FACS

    John V. Gahagan, MD, FACS

    Clinical Assistant Professor, Surgery - General Surgery

    BioJohn Gahagan, MD is a Clinical Assistant Professor of Surgery in the Section of Colorectal Surgery. He has extensive training in advanced minimally invasive surgical techniques including robotic and laparoscopic surgery. He has authored several textbook chapters and original articles in peer-reviewed journals. His clinical practice is focused on the surgical treatment of colon and rectal cancers, inflammatory bowel disease (ulcerative colitis and Crohn’s disease), and benign colon and anorectal diseases (diverticulitis, hemorrhoids, fistulas, fissures). He believes in patient-centered care and multi-disciplinary approach to the treatment of diseases of the colon, rectum and anus. He joined Stanford in 2019 and is excited to build a Stanford colorectal surgery practice in the East Bay at Stanford – ValleyCare in Pleasanton and at Stanford Health Care – Emeryville.

  • Brooke Gurland, MD, FACS

    Brooke Gurland, MD, FACS

    Clinical Professor, Surgery - General Surgery

    BioPelvic floor and functional bowel disorders refer to a series of symptoms and anatomic findings that effect men and women of all ages. These may include: constipation, difficult evacuation, fecal incontinence, irritable bowel disorders, diarrhea, pelvic organ prolapse, urinary and sexual dysfunction and pain. Although not life threatening, these disorders can severely affect quality of life and individual performance.

    Over the past two decades I have dedicated my career to working with other specialists for comprehensive care for individuals with pelvic floor disorders. In July 2017, I joined The Department of Surgery, Division of Colorectal Surgery at Stanford University as the Medical Director of the Pelvic Health Center. I previously spent the prior decade at Cleveland Clinic running a multidisciplinary clinic and performing over 200 combined procedures in conjunction with colleagues in urology and urogynecology. We developed a robotic surgical approach to woman with vaginal and rectal prolapse and performed many surgeries to repair intestinal and rectal fistula (abnormal communications between the intestine and vagina).

    Prior to that I established a Pelvic Floor Center at Maimonides Medical Center received a Jahnigan Career Development Award looking at multicompartment prolapse in elderly women. In addition to performing surgery and teaching throughout my career, I have maintained a commitment to long-term follow up of patients after surgery.
    Although my training and focus is around surgical techniques and solutions for anorectal disorders and pelvic health, I believe that prevention, non-surgical alternatives, diet, exercise, and behavior management are vitally important to patient success.

    One of my many goals is to educate patients, health care providers, and trainees about pelvic floor disorders.
    When I am not at work I enjoy quality time with my three teenagers, dog, friends and I practice yoga.

  • Michelle Hauser, MD, MD, MPA, FACP, FACLM

    Michelle Hauser, MD, MD, MPA, FACP, FACLM

    Clinical Associate Professor, Surgery - General Surgery
    Clinical Associate Professor (By courtesy), Medicine - Primary Care and Population Health

    Current Research and Scholarly InterestsPrimary care physician, prevention researcher, medical educator and classically-trained chef who combines these fields to move people away from diets that lead to chronic disease and toward eating delicious food that promotes health and well-being.

  • Hui "Heather" He, PA-C, MSHS-PA

    Hui "Heather" He, PA-C, MSHS-PA

    Affiliate, Surgery - General Surgery

    BioHui "Heather" He, PA-C, MSHS-PA is an advanced practice provider who specializes in breast surgery and plastic reconstructive surgery. She completed the Masters in Health Sciences for Physician Assistants Program at the Weill Cornell Graduate School of Medical Sciences. Heather has a special interest in benign and malignant conditions of the breast, reconstruction after ablative treatment, and cancer-related lymphedema management. She finds joy in performing 3D nipple areolar tattoos to empower breast cancer patients to feel whole again.

  • Joo Ha Hwang, MD, PhD

    Joo Ha Hwang, MD, PhD

    Professor of Medicine (Gastroenterology and Hepatology) and, by courtesy, of Surgery

    Current Research and Scholarly InterestsSpecialize in early detection of gastrointestinal malignancies including esophageal, gastric, pancreatic, bile duct & colon cancers. I have both a clinical & research interest in improving the early detection of gastric cancer in particular. I am the PI of the Gastric Precancerous conditions Study, a prospective study of patients with gastric intestinal metaplasia & other precancerous conditions which combines comprehensive clinical & endoscopic data with a large bio-specimen repository.

  • Stefanie S. Jeffrey, MD

    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.

  • Mardi Karin, MD, FACS

    Mardi Karin, MD, FACS

    Clinical Associate 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 Associate 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, and also Lympha for lymphedema prevention, 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 patients are offered the 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

    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, FACS

    Amanda Kirane, MD, FACS

    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.

    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 has conducted extensive research and been the principal investigator of multiple studies in melanoma and associated malignancies. Her current interests include immune response and novel therapies in melanoma. She has led research into immune therapy for melanoma that is resistant to current standards of care.

    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 Dermatological Treatment, Journal of Surgical Oncology, Journal of Surgical Research, Annals of Surgery, and elsewhere. Topics include advances in non-surgical management of melanoma.

    She also co-wrote the chapter on the management of soft tissue sarcoma in the textbook Current Surgical Therapy.

    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.

    She 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.

    Dr. Kirane 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 is also a Pilates instructor.

  • Lisa Marie Knowlton, MD, MPH, FACS

    Lisa Marie Knowlton, MD, MPH, FACS

    Assistant 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 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 most recently, she was awarded an R21 by the National Institute on Minority Health and Health Disparities. 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 Critical Care, Diversity and Inclusion and Healthcare Economics Committees, and also serves on the Association for Academic Surgery’s Publications Committee. She is the current inaugural Chair of the Associate Member Council of the AAST.

  • Ara Ko, MD, MPH

    Ara Ko, MD, MPH

    Assistant Professor of Surgery

    BioDr. Ara Ko is a trauma surgeon and intensivist who completed her surgical critical care fellowship at the R. Adams Cowley Shock Trauma Center in Baltimore, Maryland. Born in Korea and raised in Southern California, Dr. Ko attended the University of California, Los Angeles receiving her bachelor of arts degree in religious studies. With an interest in global health and underserved communities, she went on to earn her combined medical degree and masters in public health at the Tufts University School of Medicine in Boston, Massachusetts. She returned to Los Angeles for her general surgery training at Cedars-Sinai Medical Center where she also spent time publishing on topics such as improving outcomes in traumatic brain injury, venous thromboembolism prevention, quality improvement and trauma workflow, and pain assessment and treatment in the trauma population. Her research has been recognized both regionally and nationally, receiving awards by organizations including the American College of Surgeons Southern California Committee on Trauma and the High Value Practice Academic Alliance National Research and Education Conference. Dr. Ko is an associate member of the American Association for the Surgery of Trauma and she enjoys mentoring the next generation of physicians, being selected for outstanding student teaching awards 3 years consecutively.

  • 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.

  • Byrne Lee, MD FACS

    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

    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

    April Leyson

    Administrative Associate 3, Surgery - General Surgery

    Current Role at StanfordAdministrative Associate
    For Drs. Dan E. Azagury, Yulia Zak, Micaela Esquivel,
    Michelle Hauser, and Dr. George Poultsides
    Stanford Department of Surgery
    Section of Bariatric and Minimally Invasive Surgery
    & Section of Surgical Oncology

  • Cara A. Liebert, MD, FACS

    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, a serious game-based platform for assessment of surgical decision-making for entrustable professional activities (EPAs).

  • Dana Lin, MD

    Dana Lin, MD

    Clinical Assistant 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).

  • Charles Liu

    Charles Liu

    Affiliate, Dean's Office Operations - Dean Other
    Resident in Surgery - General Surgery

    BioI am a general surgery resident at Stanford University. I am interested in colorectal surgery, health policy and health services research, and access to and outcomes of surgical care in underserved populations, both in the US and abroad.

  • Daphne P. Ly, MD, FACS

    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

    Paul M. Maggio, MD, MBA, FACS

    Associate Professor of Surgery (General Surgery)

    BioDr. Paul Maggio is Vice Chair of Surgery for Clinical Affairs, Associate Chief Medical Officer of Operational Effectiveness, and Associate Director of the Adult Intensive Care Unit. 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 Masters of Business Administration from the University of Michigan and is triple board certified in General Surgery, Critical Care, and Medical Informatics. In addition to being a clinician and surgeon, Dr. Maggio participates in the National Committee on Healthcare Engineering for the American College of Surgeons, and his research interests are focused on the delivery of high-value care.

    Dr. Maggio received the SHC Board of Hospital Director’s Denise O’Leary Award for Clinical Excellence in 2013

  • Vanni Manthiram

    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

    Arden Morris, MD, MPH, FACS

    Professor of Surgery (General Surgery)

    BioArden M. Morris, MD, MPH is Professor of Surgery and Vice-Chair for Research in the Stanford Department of Surgery. 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 and qualitative research methods to focus on quality of and equity in cancer care. She serves as vice-chair of the Commission on Cancer’s National Accreditation Program for Rectal Cancer Quality Committee, American Society of Colon and Rectal Surgeons’ representative to the American Joint Commission on Cancer, and Chair of the ACS Cancer Surgery Standards Program Implementation and Integration Committee.

  • Raja Narayan, MD MPH

    Raja Narayan, MD MPH

    Affiliate, Dean's Office Operations - Dean Other
    Resident in Surgery - General Surgery

    BioA native of the Bay Area, Dr. Raja Narayan attended James Logan High School in Union City before going to Berkeley to obtain his BS in Chemical Biology, Yale for his MPH in Biostatistics, and the University of California Irvine for his MD. Dr. Narayan joined the Stanford General Surgery residency program in 2015.

    Before joining Stanford, Dr. Narayan developed a library of physiology and clinical education videos for the popular online learning platform, Khan Academy, where his videos have been viewed over 20 million times in all 7 continents. His work in education technology earned him the New England Journal of Medicine Gold Scholar award. While a graduate student at Yale, Dr. Narayan led a multi-disciplinary team of engineers, pathologists, and surgeons to design, construct, test, and patent a device to preserve intestinal tissue for small bowel transplantation and drug testing. This work earned him grants from the Yale Center for Engineering, Innovation, and Design as well as the Physicians of Tomorrow and Excellence in Medicine awards from the American Medical Association. As a medical student, Dr. Narayan was elected to the Αlpha Omega Αlpha Honor Society where he served as President of the Zeta chapter in 2014 and is serving as Research Chair of the Stanford chapter from 2019-2022.

    Between 2017-2019, Dr. Narayan was a research fellow with the Hepatopancreatobiliary Surgery service at the Memorial Sloan Kettering Cancer Center studying targets for pancreatic cancer vaccines, genomic markers of liver tumor biology, and regional differences in biliary tree cancer arising in patients from around the world. Since returning to Stanford in June 2019, Dr. Narayan now leads a team studying the use of artificial intelligence to define liver histopathology to predict clinical outcomes. This work has received institutional as well as national funding and acclaim including the Young Investigator Award from the American Transplant Congress and the Postgraduate Fellowship Award from the Αlpha Omega Αlpha Honor Society.

    After completion of his residency training, Dr. Narayan will pursue fellowship training in Complex General Surgical Oncology at Harvard at the Massachusetts General Hospital, Brigham & Women’s Hospital, and the Dana-Farber Cancer Institute.

  • Aussama Nassar, MD, MSc,FACS, FRCSC

    Aussama Nassar, MD, MSc,FACS, FRCSC

    Clinical Assistant Professor, Surgery - General Surgery

    BioDr. Nassar is board certified in General Surgery and Critical Care in both the USA and Canada. Dr. Nassar has five years of clinical experience in tertiary care referral academic health centers in Canada prior to joining Stanford University in surgery, trauma, and critical care. His clinical interests are emergency and elective surgery in addition to trauma and critical care medicine. He is also a skilled endoscopist performing both upper and lower gastrointestinal endoscopy. His research interests are varied and include developing assessment tools for trainees and burnout among physicians and other healthcare professionals. In addition, he is especially interested in training trainees in simulation-based medical education with a focus on perioperative inter-professional collaboration and patient safety. He is a true clinician-educator and is a certified simulation educator as well as an ATLS course director. Dr. Nassar has also earned an MSc degree in Health Science Education from McMaster University, Canada.

  • Jeffrey Norton, MD

    Jeffrey Norton, MD

    Robert L. and Mary Ellenburg Professor of Surgery

    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.

  • David Oakes

    David Oakes

    Professor of Surgery at the Santa Clara Valley Medical Center, Emeritus

    Current Research and Scholarly InterestsTrauma, especially splenic and thoracic

  • Calvin Perumalla

    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.

  • Hang T Pham

    Hang T Pham

    Research Specialist, Surgery - General Surgery

    Current Role at StanfordResearch Scientist

    Community Outreach Lead

  • George A. Poultsides, MD, MS, FACS

    George A. Poultsides, MD, MS, FACS

    Professor of Surgery (General Surgery) at the Stanford University Medical Center

    Current Research and Scholarly InterestsClinical trials of experimental diagnostics and therapeutics; outcomes analysis following combined modality treatment of hepatic, pancreatic, and gastrointestinal malignancies.

  • Carla Pugh, MD, PhD

    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.

  • Dan Riskin

    Dan Riskin

    Adjunct Professor, Surgery - General Surgery

    BioDr. Riskin is Adjunct Professor of Surgery and Adjunct Professor of Biomedical Informatics Research. 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.