Egd Expert Witnesses

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.

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...

Boca Raton, Florida

Gastroenterology, Internal Medicine - Endoscopy, Colonoscopy, EGD, Esophageal Dilation, Gastrointestinal Bleeding, Crohn's Disease, Ulcerative Colitis, Colon Cancer, Colon Polyps, Barrett's Esophagus, GERD, Inflammatory Bowel Disease, SMA Syndrome, Celiac Disease, Perforation, Food Poisioing, Difficulty swallowing, Obesity Treatment

Board Certified Gastroenterologist with over 35 years of clinical experience. Innovator, Entrepreneur and holder of 5 USA Patents & Multiple PCT Patents for Medical Devices. 30,000+ colonoscopies performed. Highly Experienced Expert witness – over 100 cases, 40 Depositions and 12 Trials. Have treated many patients with Inflammatory Bowel disease with Remicade (Infliximab), Humira (Adalimumab), Cimzia (Certolizumab), Entyvio (Vedolizumab), Stelara (Ustekinumab), Skyrizi (Risankizumab), Omvoh (Mirikizumab), Xeljanz (Tofacitinib), Rinvoq (Upadactinib), Zeposia (Ozanimod), Velsipity (Etrasimod), Imuran, Prednisone. Have treated patients with Obesity and Obesity Surgery, Bariatric Surgery Complications. Extensive experience in treating and evaluating patients with Obesity, GERD (Acid Reflux), Dysphagia (Difficulty Swallowing), Abdominal Pain, Diarrhea, Constipation, Iron Deficiency Anemia, GI & Rectal Bleeding.

Prospect, Kentucky

Nurse Anesthetist, Anesthesiology - endoscopy, colonoscopy, EGD, aspiration, MAC, Upper endoscopy, GI, sedation, NORA, Propofol Sedation, deep sedation, airway management, Anesthesia Monitoring Standards, Anesthesia-Related Complications, ASA Classification, Hypoxia, Respiratory Arrest, awareness, Capnography, Unplanned Intubation

Hannah Bischoff, DNP, CRNA, is a board-certified Certified Registered Nurse Anesthetist with extensive experience in hospital and ambulatory anesthesia. She has provided anesthesia for more than 1,300 gastrointestinal endoscopy procedures, including EGD, colonoscopy, ERCP, and PEG placement, with particular experience in airway management, aspiration risk assessment, and anesthetic care for high-risk GI patients. Her practice also includes a broad range of general surgical anesthetics across ENT, general surgery, vascular, orthopedic, urologic, gynecologic, plastic, and interventional procedures. She has extensive experience with TIVA, advanced airway management, and perioperative decision-making, providing a strong foundation for expert review of cases involving airway complications, aspiration, anesthetic awareness, and standards of anesthesia care.

High Point, North Carolina

General Surgery, Critical Care Surgery - Minimally Invasive Surgery, Laparoscopic Surgery, Gastro-intestinal Surgery, Hernia Surgery, Gall Bladder / Cholecystectomy, Colon Surgery, Colon Cancer, Colon Polyps, Diverticulitis, Appendix / Appendectomy, Hemorrhoids, Surgical Infections, Colonoscopy, EGD

Board-certified in general surgery and surgical critical care. Active clinical practice with 30+ years of experience. Clinical Assistant Professor. Fellowship-trained endoscopist, Massachusetts General Hospital-Harvard Medical School affiliation. Fellowship trained trauma and surgical critical care, MIEMSS. Fellow of American College of Surgeons. Experience as risk retention group claims committee chairman, hospital quality, safety and credentials committee member and state board reviewer of standards of care. Retired Major, US Army reserve medical corps and volunteer mission surgeon.

Fincastle, Virginia

Gastroenterology, Internal Medicine - Gastroenterology, GI, Colonoscopy, Endoscopy, EGD, ERCP, Alcohol liver disease, GERD/swallowing, Barrett's Esophagus, Crohn's disease, Ulcerative Colitis, Liver disease, Cirrhosis, Diverticulitis, Ulcers, PEG tubes Feeding tubes, Pancreatitis, Gastrointestinal bleeding, Perforation, GI tract cancers

Will provide medical document review, reports, and testimony for both plaintiff and defense attorneys. Board certified in Gastroenterology and Internal Medicine. Performs colonoscopies, EGD (upper GI endoscopy), ERCP, PEG tube/feeding tube insertions and care. Provides teaching to medical students and Internal Medicine residents Will serve as associate program director to a Gastroenterology Fellowship program beginning in July 2024 Easily reachable, available, and quick to respond