The Expert Paradox: Why More Courtroom Experience Can Work Against You

By Josh Russell, MD, co-founder of Experitas

It sounds backwards. But after years on both sides of malpractice litigation, as a board-certified emergency physician and as a retained expert, I've become convinced that being the most senior expert in the room can quietly work against the case you're trying to make.

Here's the part most clinicians don't see until they've sat through a deposition or two: the more often you testify, the easier it is for opposing counsel to cast you as a professional witness rather than a practicing physician. That distinction isn't rhetorical filler. It changes how a jury evaluates everything you say.

What the Research Actually Shows

The data here is older than most people realize. In a now-classic 2000 study in Law and Human Behavior, Cooper and Neuhaus found that mock jurors discount testimony from highly paid, frequent-testifying experts, even when those experts hold elite credentials. The effect grew stronger when the testimony was complex, which describes exactly the conditions of a med mal case. A 2015 follow-up, "Unloading the Hired Gun," replicated the core finding: jurors lean on availability heuristics, pay, frequency, and polish, when the medicine itself is too dense to evaluate on its merits.

Trial strategists have absorbed this. Firms like the Expert Institute, IMS Legal Strategies, and Your Trial Message coach attorneys to vet experts for active clinical workload, a balanced plaintiff and defense history, and a small income share from litigation. The Virginia State Bar's 2025 piece on choosing medical experts puts it plainly: jurors want a doctor who still does the job, not a doctor whose job is now testifying.

The Paradox

Pure courtroom volume, the very thing that makes an expert look experienced on paper, is also the thing that erodes how relatable and trusted they appear on the stand. Credibility in this domain doesn't accumulate the way a CV does. It depreciates the moment a doctor's day job becomes saying things in front of juries.

That's the standard I try to hold myself to. I still see urgent care and ED patients. I still spend time inside the AI tools clinicians actually use, watching how those tools shift diagnostic reasoning in real cases. When I take an expert engagement, I treat that ongoing clinical and AI-informed practice as the credential that matters most, not the deposition count.

More experience is only an asset when it still smells like the ED.