School of Medicine
Showing 131-140 of 453 Results
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Joshua D. Grab, MS, MA
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
Other Teaching Staff-Hourly, Surgery
BioI am an epidemiologist and health services researcher with nearly 20 years of experience in surgical outcomes research. My work focuses on improving healthcare delivery and outcomes for Veterans and other vulnerable populations, particularly those who are older or medically complex. Using large administrative datasets from the Veterans Health Administration (VA), I study surgical processes and outcomes to inform system-level improvements.
With postdoctoral training in health economics and implementation science, I bring expertise in causal inference methodology and artificial intelligence, particularly the use of natural language processing (NLP). I apply these methods to extract insights from unstructured clinical data and to strengthen causal analyses in complex healthcare datasets. These approaches allow me to address research questions that were previously difficult to study with standard empirical approaches.
As a collaborative leader, I have mentored junior investigators and worked across academic and industry sectors to advance health services research. My goal is to translate evidence into practice, ultimately improving the quality of surgical care for Veterans. -
Teodor Grantcharov, MD, PhD, FACS, FRCS (Glasg)
Professor of Surgery (General Surgery)
On Leave from 03/09/2026 To 06/30/2026BioDr. Teodor Grantcharov is a board-certified, fellowship-trained surgeon specializing in bariatric (weight loss) and minimally invasive surgery. He is also a clinical professor of surgery at Stanford University School of Medicine and associate chief quality officer for innovation and safety at Stanford Health Care.
As a surgeon, Dr. Grantcharov specializes in minimally invasive and bariatric surgery. He is an accomplished researcher and leader in the field of surgical innovation and patient safety. His work has made important contributions in curriculum design, assessments of competence, and impact of surgical performance on clinical outcomes. Dr. Grantcharov developed the surgical Black Box concept, designed to transform safety culture in medicine and introduce modern safety management systems in high-risk operating rooms.
Dr. Grantcharov has published more 220 articles in peer-reviewed journals and given more than 200 invited presentations in Europe and North and South America. He holds several patents and is the founder of Surgical Safety Technologies, Inc.—an academic startup that commercializes the Black Box Platform™. Dr. Grantcharov has received several prestigious honors and awards, including the Queen Elizabeth II Diamond Jubilee Medal for his contributions in clinical research and patient safety in Canada.
Dr. Grantcharov is a fellow of the American College of Surgeons. -
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 SurgeryBioMedical College of Wisconsin, Doctor of Medicine (2024)
Bucknell University, Bachelor of Science, Minor in Neuropsychology (2018) -
Dalena Ha
Affiliate, Department Funds
Resident in Surgery - Plastic and Reconstructive SurgeryBioDalena Ha, DMD, MPH, MS is a dental provider with a strong commitment to community service, public health, and advancing access to equitable care. She is a National Health Service Corps (NHSC) Scholar and holds degrees in Dental Medicine and Public Health from A.T. Still University, as well as a Master of Science in Biotechnology from Johns Hopkins University, where she concentrated on regenerative medicine and stem cell technologies.
During dental school, Dalena co-authored “The Current Applications and Efficacy of Stem Cells in Dentistry” published in EC Dental Science (2023), reflecting her interest in translational research and the future of regenerative therapies in dental care. Her academic work is rooted in a commitment to evidence-based practice and the integration of innovation into clinical decision-making.
She is the founder of the Remembering My Roots Charity Group, established in 2018 to serve underserved communities through local and international outreach. Her participation in the Good Samaritan Medical and Dental Mission further highlights her dedication to global health equity. Dalena also served as President of the ASDOH chapter of the American Dental Education Association (ADEA) and as a national board member on ADEA’s Council of Students, Residents, and Fellows, helping to shape student engagement and professional development in dental education.
