For patients and referring physicians who want to understand the science before the visit.
Every assessment we perform is drawn from the same diagnostic toolkit used in academic gastroenterology.
Functional and mechanical gut symptoms are among the most common, and most under-tested, presentations in medicine. Not because the science doesn't exist to explain them, but because the specific testing required is rarely accessible in a standard practice setting. GI Diagnostics exists to close that gap, as a dedicated testing resource for patients and the physicians who treat them. Each area below has its own dedicated page covering what the test measures, how it's performed, and what it's typically ordered for.
Maps swallowing mechanics and LES function in real time, identifying achalasia, outflow obstruction, and peristalsis disorders that endoscopy alone cannot distinguish.
Identifies dyssynergic defecation and sphincter dysfunction behind chronic constipation, a pattern that colonoscopy and imaging do not capture.
Measures the gases produced by bacterial fermentation, distinguishing hydrogen-dominant, methane-dominant, and mixed presentations that call for different approaches.
Tracks the full arc of digestive transit from ingestion to exit, distinguishing presentations that look identical on the surface but require different treatment.
Identifies which substrates the small intestine processes poorly and at what threshold, replacing guesswork and elimination diets with objective data.
Objective testing for reflux that hasn't responded to medication, or for confirming esophageal function before anti-reflux surgery.
These tests are most informative when read together.
A SIBO breath test and a motility study are related conversations. Slow small bowel transit creates conditions where bacterial overgrowth is more likely to establish and persist. Treating the SIBO without understanding the transit picture can produce temporary improvement followed by recurrence.
This is why every engagement begins with a thorough intake. Your symptom history and the pattern of your presentation determine which combination of testing produces the most complete and actionable picture, for you and for the physician who will treat you.