School of Medicine


Showing 1-22 of 22 Results

  • John V. Gahagan, MD, FACS, FASCRS

    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

    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.

  • Chandrayee Ghosh

    Chandrayee Ghosh

    Basic Life Research Scientist, Surgery - General Surgery

    Current Role at StanfordBasic Life Research Scientist

  • Jean W. Gillon, MD, FACS

    Jean W. Gillon, MD, FACS

    Clinical Associate Professor, Surgery - Vascular Surgery
    Clinical Associate Professor, Surgery - Vascular Surgery

    BioJean 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

    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

    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

    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

    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

    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.

  • Paulina Gutkin

    Paulina Gutkin

    Affiliate, Department Funds
    Resident in Surgery - General Surgery

    BioMedical College of Wisconsin, Doctor of Medicine (2024)
    Bucknell University, Bachelor of Science, Minor in Neuropsychology (2018)