UpToDate and the art of the second opinion

In 1992, a doctor’s second opinion could arrive in the mail. It came on floppy disks, concerned kidneys, and needed replacing three times a year. Burton “Bud” Rose, a nephrologist, had started UpToDate with physician and system designer Joseph Rush. The name made a promise that a printed textbook could struggle to keep. Medicine would move. The reference would move with it.

There is something pleasingly unglamorous about that beginning. No attempt to solve all of healthcare. First, nephrology. Then more specialties. A 1993 review in the New England Journal of Medicine listed the individual subscription at $495. Even on disks, this was a paid relationship with a changing body of knowledge. The customer was buying the next revision as well as the current answer.

The scarce thing was the afternoon

Consider the difference between having access to medical research and having time to interpret it. A journal article might describe one population, one intervention, one result. A patient brings several conditions, a medication list, and a question that will not wait for an afternoon’s reading. UpToDate occupies the space between those two situations.

The product synthesizes evidence into clinical topics and recommendations. Its users include physicians, advanced practice clinicians, pharmacists, and trainees; hospitals and medical schools buy access for their people. Wolters Kluwer now reports more than three million health professionals using UpToDate solutions. The company has become part of the information infrastructure around care, available through browsers, mobile devices, and electronic health records.

Its business model follows that setting. Individuals and small groups subscribe; larger organizations negotiate enterprise access. The public trainee page lists a starting price of $219 a year, with proof of status required. That price is a specific offer, not a universal tariff. Packages, markets, and institutional contracts differ. For a clinician, checking an employer’s existing access is a sensible first move.

Before the answer, the argument

The interesting machinery sits behind the search box. UpToDate’s editorial policy describes named clinical authors, in-house physician editors, specialty editors, and peer review. Recommendations receive separate attention from a grading team. Contributors disclose potential conflicts. When experts disagree, the text can explain alternative approaches and the reasoning behind them. The useful output includes the uncertainty.

That distinction matters. A recommendation’s strength and the certainty of its supporting evidence are different things. UpToDate uses GRADE to express both. For readers outside medicine, the transferable idea is straightforward: show how firmly you recommend an action, and how confidently you know the evidence underneath it. Those questions deserve separate answers.

“UpToDate behaves like a consultant, not like an encyclopedia.”

Dr. David Fleece
CMIO, Temple University Health System

The editorial labor is recurring. New findings can change an existing topic; publication is continuous. This also gives users a route back into the product: comments submitted through topic feedback are reviewed. The company’s expertise is partly medical knowledge and partly the organization of medical disagreement into something readable during a working day.

One question, several tools

A clinician can read a topic, check a drug interaction, use a medical calculator, or find information to share with a patient. Eligible professional subscriptions also let users earn continuing education credit while researching questions. This is a practical combination: the same search can support today’s decision and contribute to the clinician’s ongoing learning.

The surrounding portfolio has widened. In 2024, Wolters Kluwer brought Lexicomp, Emmi, and Digital Health Architect under the UpToDate brand. Lexidrug addresses medication information; patient and member engagement products address what happens when information must reach the person receiving care. Digital Architect supplies content for other digital experiences. These are related jobs, with different buyers and subscription arrangements.

There are credible alternatives. DynaMed also appraises evidence and produces clinical guidance. Elsevier’s ClinicalKey offers clinical reference resources and a conversational AI product. Peer review alone does not settle the competition. UpToDate’s proposition combines its particular recommendations, established use, and access within clinical workflows. A buyer still has to judge which resource fits the work.

The reference learns to converse

Wolters Kluwer completed its UpToDate acquisition in October 2008. Much later came a new interface: Expert AI, announced in September 2025, with select enterprise availability beginning in Q4 2025. It lets clinicians ask questions conversationally, drawing on UpToDate’s expert-authored content. The company’s editorial policy still prohibits external contributors from using generative AI to create or maintain that content.

The distribution is changing too. In October 2026, Suki launched Ask, described by the partners as the first product integration of the Expert AI API. Clinical guidance could now appear inside another clinical application. The strategic direction is easy to understand: put the reference closer to the question, reducing the need to leave the workflow.

A login is only the beginning

Access, however, is an incomplete measure of success. A published study at Makerere University College of Health Sciences examined donated UpToDate access, supported by librarians. It recorded meaningful use, mainly through phones, but also inconsistent uptake and low usage. Removing the subscription bill did not remove the implementation problem.

That is the useful lesson for anyone copying this business. Start with a recurring question. Invest in the work that makes the answer dependable. Then invest in helping people use it. Budget, training, local practice, and connectivity can constrain the result; Expert AI itself requires an internet connection. Rose’s mailed disks are gone. The difficult journey from available knowledge to a useful decision remains.