Stanford University
Showing 11-20 of 68 Results
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Frederick M. Dirbas, MD
Associate Professor of Surgery (General Surgery) and, by courtesy, of Radiation Oncology (Radiation Therapy)
Current Research and Scholarly InterestsCurrently collaborating with Dr's Aaron Newman and Michael Clarke to study cancer stem cells associated with triple negative breast cancer. Advancing studies of FLASH radiotherapy in preclinical models for potential future use in humans. Investigating preclinical use of high dose gaseous nitric oxide in the treatment of solid tumors.
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Monica M. Dua, MD
Clinical 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
Professor of Surgery (General Surgery)
Current Research and Scholarly InterestsMinimally Invasive Surgery
Metabolic-Bariatric Surgery
Obesity in the Veteran population with spinal cord injury -
Micaela Esquivel, MD, FACS
Clinical Associate Professor, Surgery - General Surgery
BioDr. Micaela Esquivel is a board-certified, fellowship-trained surgeon specializing in bariatric (weight loss) and minimally invasive surgery at Stanford Health Care. She is also a clinical associate professor in the Department of Surgery, Division of General Surgery at Stanford University School of Medicine.
Dr. Esquivel specializes in foregut (upper digestive tract) surgery and bariatric surgery using robotic and therapeutic endoscopic approaches. She developed the Bariatric Endoscopy Program at Stanford Health Care and treats patients with hiatal hernias, reflux, and motility disorders of the esophagus and stomach.
As a bariatric surgeon, Dr. Esquivel specializes in endobariatric procedures, such as endoscopic sleeve gastroplasty and intragastric balloon. She also treats patients who have regained weight after bariatric surgery. This includes providing endoscopic sleeve revisions and reductions, as well as transoral outlet reductions for patients who have had gastric bypass.
Dr. Esquivel is passionate about helping everyone access the care they need. She values work that minimizes disparities and promotes health equity. She has studied access to surgical care in California and countries around the world, including Zambia and Guatemala. Her current work focuses on disparities in bariatric surgery.
Dr. Esquivel has presented her research at many conferences, including the American College of Surgeons Clinical Congress and the American Society for Metabolic and Bariatric Surgery (ASMBS). 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 care. Her work has appeared in many prominent journals, including JAMA, The Lancet, World Journal of Surgery, and Journal of Surgical Research.
Dr. Esquivel is a fellow of the American College of Surgeons. She is also an active member of ASMBS, the American Foregut Society, and the Society of American and Gastrointestinal and Endoscopic Surgeons. -
Joseph (Joe) D Forrester MD MSc FACS
Associate 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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Deshka Foster, MD, PhD
Assistant Professor of Surgery (General Surgery)
Current Research and Scholarly InterestsCancer associated fibroblasts in hepatopancreatobiliary (HPB) malignancies, tumor microenvironment, abdominal adhesion biology and fibrosis
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John V. Gahagan, MD, FACS, FASCRS
Clinical Associate Professor, Surgery - General Surgery
BioJohn Gahagan, MD is a Clinical Associate Professor of Surgery in the Section of Colorectal Surgery, and serves as Chief of Surgery at the Stanford Tri-Valley Hospital. He joined Stanford in 2019 to build the Stanford colorectal surgery practice in the East Bay at Stanford Tri-Valley in Pleasanton and at Stanford Health Care – Emeryville. 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.
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 a member of the Stanford Tri-Valley Medical Staff Quality Committee and the Stanford Medicine Partners Quality and Credentialing Committee. -
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. -
S. Morad Hameed MD MPH
David L. Gregg, MD, Professor
Current Research and Scholarly InterestsTrauma Surgery
Emergency General Surgery
Critical Care
Public Health