ChatGPT, Gemini, and Perplexity can each describe your gastroenterology practice differently because they pull from different data sources, update on different schedules, and weigh your website, directory listings, and reviews unevenly. One might list a procedure you no longer offer, another might get your hours wrong, and a third might not mention you at all. The fix is to check what each one currently says and correct the sources feeding them.
Why each engine can describe you differently
Each AI assistant builds its answer from a distinct mix of inputs: web pages it has crawled, licensed data partnerships, real-time search results, or a combination of all three. Gemini often draws on Google's index and Business Profile data, Perplexity leans heavily on live web search with citations, and ChatGPT blends browsing with patterns learned during training. That means the same question about your practice can produce three different answers, even on the same day.
How to audit your practice across three assistants
Auditing means asking each assistant the same set of patient-style questions and recording what it says about your practice's name, address, hours, insurance acceptance, and services, then comparing the three answers side by side. This surfaces outdated or wrong information before a patient acts on it.
Start with questions patients actually type or speak: "gastroenterologist near me that does colonoscopies," "does your practice name accept your specific insurer," "what are the hours for your practice name." Run the same phrasing through ChatGPT, Gemini, and Perplexity. Note whether each tool names your practice at all, and if it does, whether the details match what's posted on your website and Google Business Profile. Pay attention to whether the assistant cites a source you recognize, an old directory listing, or nothing at all. Repeat this quarterly, since answers shift as these tools update their crawling and data partnerships.
Common gaps and errors these tools repeat about GI clinics
Gastroenterology practices tend to see the same recurring problems: outdated procedure lists, wrong locations for multi-office practices, confusion between a physician's personal bio page and the practice's main site, and missing or incorrect insurance information. These errors repeat across engines because they often trace back to the same outdated source, such as an old directory entry or a physician-finder page that hasn't been refreshed.
A common pattern is an assistant naming a procedure the practice stopped performing years ago, or attributing services to the wrong location when a group has multiple offices. Another frequent issue is an assistant describing a solo gastroenterologist's practice using information scraped from a hospital's physician directory rather than the practice's own site, which can misstate hours, phone numbers, or even whether the doctor is accepting new patients. Insurance details are especially prone to drift, since networks change yearly but many web listings don't.
Which sources each engine leans on
Gemini tends to prioritize Google Business Profile data, structured citations, and pages that rank well in traditional search, while Perplexity favors sources it can cite transparently in real time, often recent articles, directory pages, or your own site if it's crawlable and clear. ChatGPT's answers can reflect a broader, less transparent blend of training data and live browsing, depending on the version being used, which makes it the hardest of the three to predict.
Because Gemini is tied closely to Google's ecosystem, keeping your Google Business Profile accurate, complete, and consistent with your website has an outsized effect on what it says. Perplexity's citation-first approach means clear, well-structured pages on your own site, along with accurate third-party directory listings, are more likely to surface directly in its answers. ChatGPT's reliance on a wider mix of sources means consistency across all your public information, your website, directories, review platforms, and social profiles, matters more than optimizing for any single channel.
Fixing conflicting descriptions of your clinic
Conflicting descriptions get fixed by making one set of facts, your practice name, address, hours, providers, services, and insurance, consistent everywhere it appears online, then giving each engine a reason to trust your own website as the primary source. Inconsistent or outdated information anywhere in that chain is what allows three different assistants to say three different things.
Begin with your own website: make sure your services page lists current procedures only, your contact page has accurate hours and locations for every office, and your provider pages reflect who is actually practicing there now. Then check your Google Business Profile, major directories (health system pages, insurance network listings, physician-finder sites), and any review platforms for the same details. When you find a mismatch, correct it at the source rather than just on your own site, since outdated directory listings are frequently what these assistants cite. Structured markup on your website, code that explicitly labels your practice name, hours, and services in a format search engines and AI tools can read directly, can also reduce ambiguity for engines that support it. This process isn't a one-time fix; revisit it as your practice adds providers, changes locations, or updates its service list.
The real difference between what patients see and what you assume they see
The most common misconception among gastroenterology practice owners is that having an accurate, up-to-date website automatically means AI assistants will describe the practice correctly. The reality is that these tools often rely on secondary sources, old directory listings, cached hospital pages, or outdated review platform data, that can override or contradict what's currently on your own site. A polished website is necessary but not sufficient. Consistency across every place your practice's information lives, and periodic checks of what ChatGPT, Gemini, and Perplexity are actually saying, is what closes the gap between what you've published and what patients are told.