Ibd Expert Witnesses

Palo Alto , California

Gastroenterology, Legal Medicine - surgical timing, Crohn's Disease, Bowel Perforation, Ischemic colitis, Ulcerative Colitis, Causation, Standard of Care, Biologics Management, Toxic Megacolon, Management of Refractory IBD, Inflammatory Bowel Disease, Colonoscopy, Intestinal Ultrasonography, Complications of Biological Therapies, IBD, EGD, complications

Dr. Barber is a board‑certified academic gastroenterologist trained at Harvard Medical School and Stanford University, where he is now faculty. He oversees a high‑volume procedural practice (>400 colonoscopies annually) and manages more than 400 tertiary‑level IBD patients requiring advanced biologic and small‑molecule therapies, endoscopic intervention, and intestinal ultrasonography. He developed and directs the Stanford IBD Inpatient Consult Service and serves on the GI Clinical Competency Committee and GI Quality Council, where he helps establish and monitor clinical and procedural safety standards. His expertise includes: • Procedural Standards: Recognition and management of perforations, post‑procedural hemorrhage, and sedation‑related events • IBD Management: Biologic initiation/monitoring (anti‑TNF, IL‑12/23, JAK inhibitors, S1P modulators, integrin inhibitors), refractory disease, and surgical timing • Diagnostic Accuracy: Delayed diagnosis in colorectal cancer, IBD, isch...

Los Angeles, California

Gastroenterology - Inflammatory bowel disease, Crohn’s disease, ulcerative colitis, colonoscopy complications, biologic therapy complication, gastrointestinal bleeding, Expert Witness, colitis, diagnostic delay, medical record review, medication adverse effects, immunosuppressive therapy complications, standard of care, causation analysis, IBD

Dr. Mark Salem is a board-certified gastroenterologist and practicing academic physician specializing in inflammatory bowel disease and complex gastrointestinal disorders. He is experienced in medical record review, clinical case analysis, and synthesis of expert medical opinions. Clinical expertise includes Crohn’s disease, ulcerative colitis, colonoscopy complications, gastrointestinal bleeding, and medication-related adverse events. He is available for consultation, deposition, and trial testimony. Provides expert medical record review, independent medical examinations, and expert opinions regarding diagnosis, treatment, standard of care, and complications of gastrointestinal disease. Areas of expertise include: -Inflammatory bowel disease (Crohn’s disease and ulcerative colitis) -Colonoscopy and endoscopy complications -post-procedural adverse events -Gastrointestinal bleeding -Post-procedure bleeding -Medication-related gastrointestinal injury -Diagnostic delay in gastrointes...

Palo Alto, California

Gastroenterology, Internal Medicine - Colonoscopy, intellectual property, gastrointestinal bleeding, Ulcer, Constipation, Diarrhea, PEG tube, Clostridium difficile, fecal microbiota transplant, EGD, colitis, gastrointestinal bleeding, brain-gut interaction, posttraumatic abdominal symptoms, Endoscopy, irritable bowel syndrome, IBD

I direct the general gastroenterology group of physicians as an assistant clinical professor at Stanford University, and I have a full-time clinical practice in gastroenterology. Additionally, I teach medical students, residents, fellows, and other gastroenterologists. I have performed thousands of endoscopic procedures. In addition to teaching, clinical, and leadership work, I am a Biodesign Faculty Fellow at Stanford University and have experience with medical innovation and several patents. I completed my fellowship and master's degree at Cedars Sinai Medical Center, residency at Tufts University, and medical school at Dartmouth College. I completed formal expert witness training with SEAK.

Florida

Gastroenterology, Internal Medicine - Gastroenterology, gastrointestinal endoscopy, internal medicine, colonoscopy, colorectal, esophagus, gallbladder, intestines, pancreas, colon cancer, GERD, colitis, perforations, ischemic bowel, GI bleeding, inflammatory bowel disease, Crohn’s, mesenteric ischemia, IBD, Reflux

Board-Certified Gastroenterologist and Gastrointestinal Endoscopy specialist, Columbia and Cornell trained clinician, with an active Internal Medicine/Gastroenterology practice for the past 30+ years, on staff at New York Presbyterian Hospital and Weill Cornell College of Medicine. Experienced as a medico-legal consultant and expert witness for both plaintiff and defense.

BRADENTON, Florida

Obstetrics & Gynecology - Obstetrics, Gynecology, Chronic Pelvic Pain, Urogenital Pain, Post-Childbirth Pelvic Floor Injury, Peripheral Nerve, Gynecologic Surgical Errors, Chronic Interventional Pain, Hysterectomy, Pelvic Neuropathic, Pelvic Organ Prolapse, Intraoperative Nerve Damage, MIGS, Vulvodynia & Dyspareunia, IBD, Obstetric Brachial Plexus

Dr. Zolnoun is a distinguished expert in sensory neurophysiology within the urogenital region, renowned nationally for her groundbreaking contributions. She is a doctor with a Master of Public Health degree, specializing in Obstetrics and Gynecology. Her professional experience includes roles as a locum tenens provider in Pelvic Reconstructive Surgery and MIGS, clinical staff, founder and CEO of ZenNovid Foundation, Chronic Interventional Pain Specialist, and Clinical Liaison. She has held academic positions at the University of North Carolina at Chapel Hill, including Adjunct Associate Professor, Associate Professor, Medical Director of the Pelvic Pain Research Unit, and Assistant Professor. She currently serves as adjunct faculty in Plastic and Reconstructive Surgery and UNC’s Center for Pain Research and Innovation. Recognized for her leadership in women’s health research, she was awarded "The Medtronic Prize for Scientific Contributions to Women's Health" by S.W.H.R. in 2011. A...

New York, New York

Gastroenterology, Internal Medicine - Gastroenterology, gastrointestinal endoscopy, internal medicine, colonoscopy, colorectal, esophagus, gallbladder, intestines, pancreas, colon cancer, GERD, colitis, perforations, ischemic bowel, GI bleeding, inflammatory bowel disease, Crohn’s, mesenteric ischemia, IBD, Reflux

Board-Certified Gastroenterologist and Gastrointestinal Endoscopy specialist, Columbia and Cornell trained clinician, with an active Internal Medicine/Gastroenterology practice for the past 30+ years, on staff at New York Presbyterian Hospital and Weill Cornell College of Medicine. Experienced as a medico-legal consultant and expert witness for both plaintiff and defense.

Rochester, New York

Pathology - Gastrointestinal, GI, Liver, Pancreas, Biliary, Frozen section, colon, stomach, intestine, bowel, biopsy, IBD, inflammatory bowel disease, rectum, anus, dysplasia, hepatitis, pancreas, colitis

Associate Director of Surgical Pathology (2025-present) and Director of Gastrointestinal Pathology (2021-present) at the University of Rochester Medical Center. Fellowship trained and clinically active in Gastrointestinal, Liver, and Pancreas pathology, and also clinically practice frozen section diagnosis and cardiac pathology. I have published peer-reviewed articles on a variety of topics in gastrointestinal and liver pathology including pancreatic adenocarcinoma, liver biopsy diagnosis, esophagitis, and colitis. I also have presented and moderated educational and research sessions on GI, liver, and general surgical pathology at national conferences including the United States and Canadian Academy of Pathology (USCAP) Annual Meeting and American Society for Clinical Pathology (ASCP).

Casper, Wyoming

Colon & Rectal Surgery, General Surgery - Colon Surgery, Robotic Surgery, Rectal Cancer, Diverticulitis, Hemorrhoids, Anal Fistula, Anastomotic Leak, Surgical Complications, IBD, Bowel Obstruction, Colonoscopy, Low Anterior Resection, Colon Cancer, Ostomy, Hernia, Appendix, Gallbladder, Adhesions, Fistula

Dr. Aimee Gough is board-certified in Colon and Rectal Surgery as well as General Surgery and has been in independent practice for over five years. She is a Fellow of the American College of Surgeons, a member of the American Society of Colon and Rectal Surgeons, a clinical instructor at the University of Washington School of Medicine, and an ATLS instructor. She maintains a busy private practice where she practices both colorectal surgery and general surgery (including trauma) - with a focus on minimally invasive surgical care (robotic and laparoscopic) for diseases of the colon and rectum. She also cares for patients with anorectal and pelvic floor disorders. As the only board-certified colon and rectal surgeon in her state, she routinely sees complex patients, inherits and manages complication, and undertakes re-do operations. With experience in medical education and public speaking, Dr. Gough communicates effectively and excels at conveying complicated medical topics in a c...