Stanford University
Showing 101-200 of 430 Results
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Carlos O. Esquivel, M.D., Ph.D.,FACS
Arnold and Barbara Silverman Professor in Pediatric Transplantation and Professor of Surgery (Abdominal Transplantation) and of Pediatrics (Gastroenterology, Hepatology and Nutrition)
On Partial Leave from 09/01/2024 To 08/31/2025Current Research and Scholarly Interests1) Induction of immunotolerance
2) Rejection of liver and intestinal transplantation.
3) Clinical outcomes of children with unresectable liver tumors. -
Micaela Esquivel, MD
Clinical Associate Professor, Surgery - General Surgery
BioDr. Esquivel is a board-certified, fellowship-trained bariatric and minimally invasive surgeon. She is a clinical associate professor of surgery at Stanford University School of Medicine. Specialties of Dr. Esquivel include foregut surgery and bariatric surgery. She performs robotic surgery as well as therapeutic surgical endoscopy.
She has developed the Bariatric Endoscopy Program of Stanford Health Care. She offers endoscopic sleeve gastroplasty and endoscopic suturing of the gastric pouch and outlet after gastric bypass, and endoscopic sleeve revisions/reductions, 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. 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.
Dr. Esquivel also 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
Clinical Assistant Professor (Affiliated), Surgery - General Surgery
Staff, Surgery - General SurgeryBioDr. 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 Stanford Health Care Tri-Valley, 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. -
Amin Etemad, MBA, SSGB
Quality Programs Manager, Surgery
BioAmin Etemad earned a Bachelor's degree in management from l'Université de Montréal's HEC School of Commerce followed by an MBA in Medical Management from the University of St. Thomas in Minneapolis in 2008. He led Amazon fulfillment as an Operations Manager at MSP5 in Shakopee, MN before joining the supply chain team of Minnesota-based Allina Health as a process improvement manager. He then moved to a central QI role at Allina where he was part of MN's Covid surge planning for the ED and ICU in 2020.
In the fall of 2020, Amin joined Stanford Health as a Quality Improvement Project Manager in Radiology. In 2023, he transitioned to the school of medicine where he leads the quality improvement team in the department of surgery.
Amin is an avid tennis and soccer player and loves playing acoustic guitar and a classical string instrument called Santoor. He speak5 languages, having grown up on 3 continents and 5 countries, raised in a family of 10+ medical doctors with a continuous love for traveling the world and learning new cultures and cuisines. -
Joseph (Joe) D Forrester MD MSc FAWM FACS
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.
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Paige Fox, MD, PhD, FACS
Associate Professor of Surgery (Plastic and Reconstructive Surgery)
BioDr. Paige Fox is Board Certified Plastic Surgeon who specializes in hand surgery, reconstructive microsurgery including facial reanimation, as well as peripheral nerve and brachial plexus surgery. She is an Associate Professor in the Division of Plastic and Reconstructive surgery in the Department of Surgery. She works with adult and pediatric patients. Her lab focuses on wound healing and nerve compression. She has clinical research interested in optimizing care of upper extremity and nerve disorders both in the US and internationally. Dr. Fox has a passion for sustainability and health care's effect on the environment. She is involved in efforts to green the OR and the clinics at Stanford.
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Eri Fukaya
Clinical Associate Professor, Surgery - Vascular Surgery
Clinical Associate Professor, Medicine - Primary Care and Population HealthBioDr. Fukaya practices Vascular Medicine at the Stanford Vascular Clinics and Advanced Wound Care Center. She received her medical education in Tokyo and completed her medical training both in the US and Japan. She joined Stanford in 2015.
Vascular Medicine covers a wide range of vascular disorders including chronic venous insufficiency, varicose veins, deep vein thrombosis, post thrombotic syndrome, peripheral artery disease, carotid artery disease, cardiovascular risk evaluation, fibromuscular dysplasia, rare vascular disease, lymphedema, arterial/venous/diabetic ulcers, and wound care.
Dr. Fukaya has a special interest in venous disease and started the Stanford Vascular and Vein Clinic in 2016.
Board Certified in Vascular Medicine
Board Certified in Internal Medicine
Board Certified in Internal Medicine (Japan)
Board Certified in Plastic and Reconstructive Surgery (Japan) -
John V. Gahagan, MD, FACS, FASCRS
Clinical Assistant Professor, Surgery - General Surgery
BioJohn Gahagan, MD is a Clinical Assistant Professor of Surgery in the Section of Colorectal Surgery. He has 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 Tri-Valley in Pleasanton and at Stanford Health Care – Emeryville.
Outside of his clinical practice, he is involved in surgical education and serves as an Associate Program Director of the Stanford General Surgery Residency Training Program as well as the Site Director for the Stanford Tri-Valley surgery rotation. He serves in various administrative roles, including as Chair of the Stanford Tri-Valley Operating Room Committee and a member of the Stanford Tri-Valley Medical Staff Quality Committee and the Stanford Medicine Partners Quality and Credentialing Committee. -
Dyani Gaudilliere
Clinical Associate Professor, Surgery - Plastic & Reconstructive Surgery
BioDr. Dyani Gaudilliere specializes in Dental Surgery and Oral Oncology in a hospital setting. As a hospital dentist she performs surgical treatment of infection and trauma to the teeth and supporting alveolar bone. She also performs medically necessary dental clearance and extractions in the context of larger medical conditions, such as cardiac disease, joint replacement, or organ transplantation. As an oral oncologist, she specializes in surgical dental treatment prior to, during, and following radiation therapy and chemotherapy.
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Chandrayee Ghosh
Basic Life Research Scientist, Surgery - General Surgery
Current Role at StanfordBasic Life Research Scientist
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Jean W. Gillon, MD, FACS
Clinical Associate Professor, Surgery - Vascular Surgery
Clinical Associate Professor, Surgery - Vascular SurgeryBioJean Gillon, MD, FACS, is board certified in both general and vascular surgery. After 8 years at San Francisco General Hospital covering vascular trauma followed by 20 years of managing her own private practice in Northern California, she now treats vascular patients at the Stanford Health Care Heart and Vascular Clinic in Portola Valley. She is a clinical associate professor in the Department of Surgery, Division of Vascular and Endovascular Surgery at Stanford University School of Medicine.
Dr. Gillon specializes in the treatment of lower extremity vascular venous disorders, especially venous insufficiency. She pioneered the practice of performing venous procedures under only local anesthesia in the office instead of under full sedation in the operating room. She obtained certification as a Registered Physician in Vascular Interpretation (RPVI) in 2009. With this certification, Dr. Gillon can perform and interpret ultrasound imaging for accelerated patient evaluation, diagnosis, and treatment.
Dr. Gillon has presented papers and posters at conferences for the American College of Surgeons. Before attending medical school, she assisted researchers in the investigations of the leech nervous system. She also performed laboratory studies in canines, which found that ionic currents change the rates of depolarization and potassium conductance in the heart.
She obtained her medical degree from the Brown University Warren Alpert Medical School in Rhode Island. After graduating from her surgical residency at Brown, she served for eight years as a trauma vascular surgeon at San Francisco General Hospital. During that time, Dr. Gillon completed a vascular surgery fellowship at the University of California in San Francisco (UCSF).
Dr. Gillon has a passion for educating the future generation of physicians. During her time at San Francisco General Hospital, she received the UCSF Excellence in Teaching Award, which is resident vote only. Dr. Gillon looks forward to teaching the residents and fellows in vascular surgery at Stanford School of Medicine.
She has been an active member of the Alumni Board at Brown University for over 10 years. She interviews prospective medical students applying to the Warren Alpert Medical School as well as undergraduate applicants each year. -
Joshua D. Grab
Biostatistician 2, Stanford-Surgery Policy Improvement Research and Education Center
BioJoshua Grab is a Biostatistician at the S-SPIRE Center in the Department of Surgery. He has Masters' degrees in Biostatistics and Mathematics.
Josh has 12 years of experience as a biostatistician and data analyst. As a data analyst at UCSF, he worked primarily for the Liver Transplant Center doing survival analyses. At Wake Forest University, he worked on genome-wide association studies for various disease conditions. Before that, he worked at the Duke Clinical Research Institute (DCRI), building logistic models for mortality within the Society of Thoracic Surgeons' National Cardiac Database.
Josh has been a SAS user for all of his time in biostatistics and has beginner to intermediate skills with various other software packages, including R, STATA, and MATLAB, and is learning Python.
In addition to his biostatistics career, Josh also has 7 years of experience teaching mathematics and introductory statistics at the community college level. -
Laura Graham
Casual - Non-Exempt, Surgery
BioDr. Graham is a health services researcher with extensive experience in data management and analysis. She focuses on surgical outcomes research using large administrative datasets from the Veterans Health Administration (VA) and other single-site healthcare systems. Her research interests include improving clinical care processes using causal inference methodologies and implementation science to translate evidence into practice. Her research has significantly contributed to understanding and improving surgical outcomes, particularly within the VA healthcare system, through rigorous epidemiological and health services research methods.
During her tenure with the Veterans Health Administration and Stanford Medical Center, Dr. Graham's research has focused on using large administrative datasets to improve surgical outcomes, enhance surgical training, and optimize healthcare delivery for veterans undergoing surgical procedures. She has expertise in novel analytic approaches, including causal inference methodologies, and has presented on examining complex relationships and reporting nonlinear trends in surgical outcomes research.
Dr. Graham has a substantial publication record, with over 4,600 citations and an h-index of 32 (as of June 2024). Her work has been published in a number of reputable high-impact journals, including JAMA Surgery, Annals of Surgery, and Health Affairs. These experiences have equipped her with a robust understanding of health data and novel data science methodologies, as well as the ability to design and execute complex experiments, analyze data, and communicate results effectively.
In addition to her technical skills, she is a strong collaborator and communicator. She frequently collaborates with clinician-scientists to produce valid and impactful surgical outcomes research. She has successfully led multidisciplinary teams, mentored junior researchers, and fostered productive partnerships with industry and academic collaborators. She is adept at managing multiple projects simultaneously and thrives in dynamic, fast-paced environments. -
Teodor Grantcharov
Professor of Surgery (General Surgery)
BioDr. Teodor Grantcharov completed his surgical training at the University of Copenhagen, and a doctoral degree in Medical Sciences at the University of Aarhus in Denmark.
Dr. Grantcharov is a Professor of Surgery at Stanford University and Associate Chief Quality Officer for Innovation and Safety at Stanford Healthcare.
Prior to joining Stanford, Dr. Grantcharov was a Professor of Surgery at the University of Toronto and Keenan Chair in Surgery at St. Michael’s Hospital in Toronto. He was the Founder of the International Centre for Surgical Safety – a multidisciplinary group of visionary scientists with expertise in design, human factors, computer- and data science, and healthcare research. He previously held Canada Research Chair in Simulation and Surgical Safety and was awarded the Queen Elizabeth II diamond jubilee medal for his contributions to clinical research and patient safety in Canada. Dr. Grantcharov was awarded the honorary fellowship of the Imperial College in London, the honorary fellowships of the Bulgarian, Danish and Brazilian surgical societies, the Spinoza Chair in Surgery from the University of Amsterdam and multiple national and international awards for his contributions to surgical education and surgical safety.
Dr. Grantcharov’s clinical interest is the area of minimally invasive surgery, while his academic focus is in the field of surgical innovation and patient safety. He has become internationally recognized as a leader in this area with his work on curriculum design, assessment of competence and impact of surgical performance on clinical outcomes. Dr. Grantcharov developed the surgical Black Box concept, which aims to transform the safety culture in medicine and introduce modern safety management systems in the high-risk operating room environment.
Dr. Grantcharov has more than 220 peer-reviewed publications and more than 200 invited presentations in Europe, South- and North America. He holds several patents and is the Founder of Surgical Safety Technologies Inc – an academic startup that commercializes the OR Black Box platform. He sits on numerous committees with Surgical Professional Societies in North America and Europe. -
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. -
Geoffrey Gurtner
Johnson & Johnson Distinguished Professor of Surgery, Emeritus
Current Research and Scholarly InterestsGeoffrey Gurtner's Lab is interested in understanding the mecahnism of new blood vessel growth following injury and how pathways of tissue regeneration and fibrosis interact in wound healing.
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Paulina Gutkin
Affiliate, Department Funds
Resident in Surgery - General SurgeryBioMedical College of Wisconsin, Doctor of Medicine (2024)
Bucknell University, Bachelor of Science, Minor in Neuropsychology (2018) -
Beth Habelow
Lecturer, Surgery - Anatomy
BioPhysical therapist, lecturer
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S. Morad Hameed MD MPH
David L. Gregg, MD, Professor
Current Research and Scholarly InterestsTrauma Surgery
Emergency General Surgery
Critical Care
Public Health -
E. John Harris Jr.
Professor of Surgery (Vascular), Emeritus
Current Research and Scholarly InterestsI am interested in thrombosis and the role of thrombin and its receptor in venous wall remodeling following venous thrombosis. I am also interested in vascular hemodynamics and the use of ultrasound, MRI and computational modeling in evaluating arterial flow in exercise conditions.
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Gary E Hartman, MD, MBA
Clinical Professor, Surgery - Pediatric Surgery
Current Research and Scholarly InterestsMinimal Access and Robotic Surgery
Neonatal Surgery
Childhood Oncology -
Michelle Hauser, MD, MS, MPA, FACP, FACLM, DipABLM, Chef
Clinical Associate Professor, Surgery - General Surgery
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.
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Mary Hawn, MD, FACS
Emile Holman Professor of Surgery
Current Research and Scholarly InterestsMy area of research is health services researcher focusing on surgical quality measurement and policy. I have a background and training in epidemiology coupled with my leadership roles in surgical quality measurement. My expertise and extensive experience in evaluation of surgical quality process and outcome linkage has impacted national policy and changed guidelines. We performed a comprehensive evaluation of the Surgical Care Improvement Project (SCIP) implementation using national VA data. Defining robust metrics of surgical quality that are actionable and can lead to sustained improvement in our field are of utmost importance. I also have experience with risk prediction modeling for surgical patients. Our Decision Support for Safer Surgery study developed models of real-time risk prediction for major complications and prospectively validated our models in patients and with expert surgeons. We were able to discern where computational risk prediction has added value and where it falls short. We currently have a national study investigating readmissions following major surgical procedures to identify opportunities for improving care and reducing costs.
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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.
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Jill Helms
Professor of Surgery (Plastic & Reconstructive Surgery)
Current Research and Scholarly InterestsDr. Helms' research interests center around regenerative medicine and craniofacial development.
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Rod Hentz
Professor of Surgery, Emeritus
Current Research and Scholarly Interests1. Nerve regeneration and repair, evaluation of repair methods, modalities to enhance peripheral nerve regeneration, development of improved methods to analyze nerve regeneration.
2. Implementation of functional neuromuscular stimulation to paralytic deformities.
3. Computer modeling of upper limb function. -
Franco Hernandez
Clinical Instructor, Surgery - Plastic & Reconstructive Surgery
BioDr. Franco Hernandez was born and raised in Southern California. He graduated from the University of California, Riverside where he obtained a Bachelor’s in Economics, graduating with honors. He went on to complete his Doctorate of Dental Surgery at the University of Southern California where he spent dedicated time as a selective student with emphasized training in the areas of Oral & Maxillofacial Surgery, Dental Anesthesia, and Public Health. Following graduation, he began his post-graduate training as an Oral & Maxillofacial Surgery intern at Parkland Memorial Hospital / UT Southwestern Medical Center in Dallas, one of the largest level 1 trauma centers in the state of Texas. He continued his training at Stanford University Medical Center where he completed a Dental Medicine, Oral & Maxillofacial clinical instructorship.
Dr. Hernandez diagnoses, treats, and manages a variety of conditions including: odontogenic infection, dentoalveolar trauma, edentulism (partial and complete), non-malignant oral lesions, benign cysts/tumor of the maxilla/mandible, osteonecrosis of the maxilla/mandible, temporomandibular disorders (TMD), and orofacial pain. He routinely performs surgical dental extractions, oral rehabilitation with dental implants, removal of 3rd molars (“wisdom teeth”), bone grafting, excision of benign maxillary/mandibular cysts, as well as management of TMD and Orofacial pain. As a Dental Oncologist, he specializes in dental procedures and surgeries prior to, during, and following head & neck radiation therapy and chemotherapy. As a Hospital Dentist, he performs medically necessary dental procedures and surgeries in the context of extensive cardiac disease, major organ failure/transplant cases, major systemic disease, cancer therapy, and orthopedic surgery. -
Tina Hernandez-Boussard
Professor of Medicine (Biomedical Informatics), of Biomedical Data Science, of Surgery and, by courtesy, of Epidemiology and Population Health
Current Research and Scholarly InterestsMy background and expertise is in the field of computational biology, with concentration in health services research. A key focus of my research is to apply novel methods and tools to large clinical datasets for hypothesis generation, comparative effectiveness research, and the evaluation of quality healthcare delivery. My research involves managing and manipulating big data, which range from administrative claims data to electronic health records, and applying novel biostatistical techniques to innovatively assess clinical and policy related research questions at the population level. This research enables us to create formal, statistically rigid, evaluations of healthcare data using unique combinations of large datasets.
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David Ian Hindin
Clinical Assistant Professor, Surgery - General Surgery
BioDr. Hindin obtained his MD from the University of Pennsylvania Perelman School of Medicine in Philadelphia, Pennsylvania. He completed his general surgery training at Temple University School of Medicine, also in Philadelphia, and subsequently completed fellowship in surgical critical care at Stanford University School of Medicine. Dr. Hindin is currently the Associate Chair of Innovation at Stanford University’s Department of Surgery. He is also a Clinical Assistant Professor of Surgery at Stanford University in the section of Trauma and Critical Care Surgery and at the VA Palo Alto. Dr. Hindin additionally serves as Assistant Director of Stanford University’s Biodesign Faculty Fellowship, a university-wide program that trains faculty members from medicine, engineering, and other schools in the process of creating health technology innovation, from needs-finding to commercialization.
Dr. Hindin has a particular interest in training physicians to leverage story-based skills to increase the effectiveness of their communication. He has previously developed and taught a semester-long storytelling course at Stanford Biodesign, which trains physicians and engineers to create more effective pitches when seeking venture funding. -
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.
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Yuki Imaoka
Visiting Assistant Professor, Surgery - Abdominal Transplantation
BioYuki Imaoka, MD, PhD is a physician-scientist specializing in gastrointestinal and transplant surgery, oncology, and immunology, with over a decade of clinical experience. Dr. Imaoka earned his MD from Hiroshima University, Japan, followed by a PhD in Gastroenterological and Transplant Surgery from Hiroshima University's Graduate School of Biomedical and Health Sciences. After completing his clinical training and professional appointments at Hiroshima University Hospital, he joined Stanford University in August 2022 as a Visiting Assistant Professor in the Sasaki Lab, focusing on translational research.
Dr. Imaoka’s clinical expertise includes a Senior Residency in General Surgery and a Clinical Fellowship in Gastroenterological and Transplant Surgery at Hiroshima University Hospital. In his academic roles, particularly as an Assistant Professor in the Department of Gastroenterological and Transplant Surgery, he has contributed to groundbreaking research, including clinical trials investigating liver natural killer (NK) cell therapy.
His PhD research made significant advances in exploring the anti-tumor properties of NK cells, especially in the context of tissue-specific NK cell immunotherapy. This work has the potential to revolutionize treatments for liver diseases, as it pioneers new pathways in cellular immunotherapy. Dr. Imaoka’s translational research seeks to address the unmet needs in liver disease treatment, with a focus on improving patient outcomes through innovative therapeutic approaches. His goal is to continue advancing the field of gastrointestinal surgery and transplantation, driving progress in both research and clinical practice. -
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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Haaris Kadri
Casual - Non-Exempt, Surgery - Multi-Organ Transplantation
Current Role at StanfordResearch Assistant (Melcher Lab): July 2020 - Present
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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.
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.
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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. -
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
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
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. -
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.
