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Gastroenterology Expert Witnesses

Gastroenterology plays a central role in pharmaceutical, medical device, and healthcare disputes because digestive diseases are common and their treatments are commercially significant. Product liability litigation has involved acid-suppressing drugs, GI therapies, and contaminated endoscopes, while patent disputes involve biologics for inflammatory bowel disease and other GI treatments. Government and payor disputes examine whether endoscopic procedures and related services were medically necessary and properly billed. The central question is usually what the clinical evidence shows about causation, standards of care, and appropriate treatment.

A gastroenterology expert helps attorneys evaluate clinical and scientific evidence in these matters. The expert can review medical records, endoscopy reports, pathology, and clinical trial data to assess diagnosis, treatment decisions, and whether a drug or device caused the alleged harm. In device and infection matters, the expert can evaluate reprocessing practices; in billing disputes, the expert can assess medical necessity against professional society guidelines. That analysis frames liability, causation, and compliance and supports or rebuts damages and repayment claims.

Gastroenterology testimony is most persuasive when it comes from physicians with clinical and research experience. Round Table Group can introduce gastroenterologists, hepatologists, and GI researchers, including professionals with backgrounds at institutions such as the Mayo Clinic and the Cleveland Clinic and leadership roles in the American Gastroenterological Association and the American College of Gastroenterology. Their expertise helps a fact-finder understand complex GI conditions and treatments. With more than 75,000 expert searches completed for litigators, we can match the clinical issues in your case with a qualified expert. Discuss your gastroenterology matter with us by calling us at (202) 908-4500.

Kinds of Cases We Work On

Round Table Group helps our clients find a wide variety of Gastroenterology expert witnesses for cases like:

01

Duodenoscope Cleaning Failure Sparks Multi-Hospital Vendor Dispute.

A hospital system sued its endoscope reprocessing services vendor after surveillance cultures found residual bacterial contamination on a meaningful share of duodenoscopes across several facilities, despite the vendor's contracted high-level disinfection protocol. We identified experts with experience in endoscope reprocessing standards, high-level disinfection protocols, and duodenoscope design risk factors. Technicians had used a brushing technique that failed to reach the scope's elevator mechanism, a manufacturer-flagged high-risk step, supporting a settlement funding an enhanced reprocessing audit program.
02

Colonoscope Channel Defect Design Challenged.

An ambulatory surgery center chain sued a colonoscope manufacturer after a design defect in the instrument channel caused repeated equipment failures mid-procedure across a number of its facilities, forcing case cancellations and reschedules. We identified experts with experience in endoscope design engineering, instrument channel materials testing, and medical device service life analysis. The channel's internal coating had a documented tendency to degrade well below the manufacturer's claimed service life, supporting a settlement including replacement of the affected device fleet.
03

Pathology Lab's Misdiagnosis Rate Disputed.

A multi-site gastroenterology practice group sued its outside pathology laboratory after an internal quality review found the lab's dysplasia grading on biopsy specimens diverged from a second-opinion review at a rate well above the practice group's contracted acceptable error rate. We identified experts with experience in gastrointestinal pathology grading standards, dysplasia diagnostic criteria, and laboratory quality control protocols. The lab had relied on a single pathologist for most gradings without the contracted second-reader protocol for indeterminate cases, supporting an arbitration award of a partial fee refund.
04

Concealed Detection Rate Unravels ASC Acquisition.

An acquirer brought an indemnification claim against the sellers of an ambulatory surgery center chain specializing in endoscopy after discovering, post-closing, that the centers' adenoma detection rates fell well below the rate represented during due diligence. We identified experts with experience in colonoscopy quality metrics, adenoma detection rate reporting standards, and M&A clinical due diligence review. Pre-closing quality reports had excluded a substantial share of procedures performed by lower-volume physicians, and arbitration awarded indemnification covering a significant share of the valuation shortfall.
05

Biosimilar Switch Sparks GI Flare Dispute.

A hospital system sued a group purchasing organization after a mandated system-wide switch to a biosimilar biologic for inflammatory bowel disease patients coincided with a marked increase in disease flare-ups requiring hospitalization. We identified experts with experience in IBD biologic therapy management, biosimilar switching protocols, and inflammatory bowel disease clinical monitoring. The switch protocol lacked the enhanced monitoring and dose-titration guidance recommended for complex IBD patients, supporting a mediated resolution of the negligence claim.
06

Capsule Endoscopy Data Loss Draws Breach Lawsuit.

A gastroenterology practice group sued a capsule endoscopy device manufacturer after a software update to the device's recording platform caused a significant number of patient studies to be lost or corrupted before physicians could review them. We identified experts with experience in capsule endoscopy systems, medical device software validation, and clinical data integrity standards. The update had been deployed without the backward-compatibility testing the manufacturer's own procedures required, supporting a settlement covering repeat procedures for affected patients.
07

Contaminated Feeding Formula Triggers Supplier Claim.

An enteral nutrition manufacturer sued its raw material supplier after a contamination issue in a bulk ingredient led to a recall covering a substantial share of the manufacturer's tube-feeding formula line. We identified experts with experience in enteral nutrition formulation, raw material contamination investigation, and clinical nutrition adverse event analysis. The contamination traced to a shipment the supplier released despite an internal quality flag, shifting liability to the supplier and anchoring an arbitration award covering most recall costs.
08

CRO's Trial Conduct Faces Negligence Claim.

A pharmaceutical sponsor sued its contract research organization after regulators raised concerns about endoscopic scoring inconsistencies across sites in a multi-site inflammatory bowel disease drug trial, threatening the trial's use in a pending approval submission. We identified experts with experience in IBD endoscopic scoring standards, central reading protocol compliance, and clinical trial site monitoring. A meaningful share of sites had submitted videos failing the trial's minimum image quality standard, a gap the CRO's monitoring should have caught, supporting a settlement covering remediation costs.
09

Formulary Exclusion Dispute Over Biologic Drug.

A pharmaceutical manufacturer sued a pharmacy benefit manager for breach of a rebate agreement after the PBM excluded its inflammatory bowel disease biologic from a preferred formulary tier in favor of a competing product the manufacturer argued was not clinically interchangeable for a meaningful subset of patients. We identified experts with experience in IBD treatment guidelines, biologic interchangeability analysis, and pharmacy benefit clinical policy review. The PBM's rationale relied on data from biologic-naive patients rather than the biologic-experienced population the guidelines distinguished, weakening its defense and leading to a settlement restoring formulary access.
10

GI Drug Dosing Tool Malfunctions.

A hospital system sued its electronic health record vendor after an embedded weight-based dosing calculator for a GI bleed reversal agent produced recommendations inconsistent with the hospital's approved protocol across a number of patient encounters. We identified experts with experience in GI bleed reversal agent dosing protocols, clinical decision support logic review, and EHR configuration standards. The calculator had been configured from a generic default protocol that diverged from the hospital's customized renal-adjustment logic, supporting a settlement including a system-wide configuration audit.

Here are a few of our favorite Gastroenterology Expert Witnesses:

Massachusetts Gastroenterology, Colonoscopy Expert #10055

I have 20 years of experience, and specialize in the field of gastroenterology (GI) with specific knowledge in the areas of endoscopy, pancreaticobiliary tract disorders and GI malignancy including colon cancer. I have published on such topics as colon cancer, pancreatitis and gallstones. I have testified 20 times on topics such as endoscopy complications, cancer detection and GI malignancies.

 

Illinois Gastroenterology Expert #13113

I have 30 years of experience, and specialize in the field of gastroenterology with specific knowledge in the areas of acid peptic disease, gastroesophageal reflux disease (GERD) and proton pump inhibitors. I have published on such topics as proton pump inhibitors, ulcer disease and GERD. I have testified on PPIs, and bisphosphonates.

 

Illinois Gastroenterology, Liver Disease Expert #21198

I have 5 years of experience and specialize in the field of hepatology and gastroenterology, with specific knowledge of liver disease, liver transplantation and gastroenterology. I have published on such topics as liver transplant outcomes, complications of liver disease and infectious diseases.

 

New York Gastroenterology, Endoscopy Expert #24075

I have 5 years of experience and specialize in the field of gastroenterology, with specific knowledge of endoscopic ultrasound, advanced endoscopy and gastrointestinal cancer. I have published on such topics as endoscopic ultrasound, pancreatic cancer and ERCP.

 

Massachusetts Nephrology, Gastroenterology Expert #24836

I have 20 years of experience, and specialize in the field of nephrology with specific knowledge in the areas of gastroenterology and nutrition. I have published on such topics as nephrology and nutrition. I have been teaching in a physician assistant program for seven years.

 

Your Case Deserves The Best Gastroenterology Expert Witnesses

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The right expert witnesses and consulting experts can make your case. That’s why we have spent so many hours over the past quarter century making sure our clients have just the right expert team — whether one expert or many, early-stage advice or expert reports and testimony. Across over 50,000 expert search assignments, we have honed a unique, customized approach to identifying, analyzing and connecting with expert talent so you can focus on winning your case.

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California Pediatrics, Gastroenterology Expert #27309

I have 18 years of experience, and specialize in the field of pediatric gastroenterology with specific knowledge in the areas of celiac disease, inflammatory bowel disease and short bowel syndrome. I have published on such topics as celiac disease, E. coli infections and pancreatitis. I have testified 10 times on topics such as medical neglect of a child, short bowel syndrome and celiac disease. In my practice I care primarily for children with autoimmune inflammatory bowel diseases (such as celiac disease, Crohn’s disease and ulcerative colitis), short bowel syndrome, and those who have special nutritional needs requiring either intravenous nutrition…

 

Colorado Gastroenterology, Health Policy Expert #28234

I have 31 years of experience, and specialize in the field of gastroenterology with specific knowledge in the areas of inflammatory bowel disease, colon cancer and irritable bowel disease. I have published on such topics as decision making in gastroenterology, vitamin absorption and colon cancer screening. I have testified on ischemic bowel disease, sexual harassment in the workplace and colon cancer screening.

 

Maryland Gastroenterology Expert #30578

I have 22 years of experience, and specialize in the field of gastroenterology with specific knowledge in the areas of endoscopy, irritable bowel syndrome, and liver diseases. I have published on such topics as irritable bowel syndrome, esophageal reflux disease, and capsule endoscopy.

 

Georgia Gastroenterology Expert #35946

I have 25 years of experience and specialize in the field of gastroenterology, with specific knowledge of inflammatory bowel disease, Pancreatitis and colon cancer. I have published on such topics as ulcerative colitis, Crohns Disease and colon polyps. I have testified on perforation, wrongful death and missed diagnosis of cancer.

 

Colorado Gastroenterology, Hepatology Expert #40301

I have 13 years of experience, and specialize in the field of clinical pharmacy, with specific knowledge in the areas of gastrointestinal disorders, hepatic disorders and internal medicine. I have published on such topics as inflammatory bowel disease, portal hypertension and medication safety.

 

Texas Pediatric, Gastroenterology Expert #45757

I have 10 years of experience, and specialize in the field of pediatric gastroenterology with specific knowledge in the areas of therapeutic endoscopy, ERCP in children and pancreatitis. I have published on such topics as therapeutic endoscopy, enteroscopy and pancreatic disease.

 

Connecticut Pathology, Gastroenterology Expert #31204

I have 40 years of experience, and specialize in the field of gastrointestinal (GI) pathology with specific knowledge in the areas of Crohn’s disease, veterinary medical GI diseases, canine acute gastric dilatation and autism. I have published on such topics as Crohn’s disease, infectious GI diseases of several species and gastroenteritis. I have testified on canine acute gastric dilatation, Mycobacterium paratuberculosis in Crohn’s disease and animal abuse or neglect pathology. I’m very good at critical researching in published articles and in medical records.

 

Put Our Gastroenterology Expert Network to Work for You

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Our huge network of experts – eminent university professors and practitioners who have achieved renown as thought leaders in their fields – combined with unparalleled research capabilities puts the experts you need at your disposal when and where you need them.

If you’re a litigator or general counsel, we want to put this network to work for you and your clients. Let us know how we can help by calling us at (202) 908-4500 or filling out the form on this page. We’re so confident you’ll love what we do that unless you retain an expert we present there’s no charge!

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Questions Attorneys Ask About Gastroenterology Expert Witnesses:

A gastroenterology expert is warranted when liability, compliance, or damages depend on digestive disease, GI therapies, or endoscopic procedures. Typical matters include pharmaceutical and device litigation, endoscope contamination claims, patent disputes, and billing investigations.
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