(Bloomberg) -- Private equity firm GTCR is nearing a deal to buy Warburg Pincus’s health-care IT firm Experity Inc. for about $1.2 billion, according to people with knowledge of the matter. 

Experity, which provides software to urgent care practices and doctors’ offices, drew interest from several firms in a competitive auction run by William Blair & Co., said the people, who asked not to be identified because the information is private.

A deal could be reached within days, though talks could end without an agreement, they said. 

Representatives for Warburg Pincus and GTCR declined to comment. A spokesperson for William Blair didn’t immediately respond to a request for comment.

Chicago-based GTCR has been investing in the health-care sector for more than 20 years, according to its website.

Warburg Pincus bought a majority stake in urgent care health tech provider Docutap in 2016. Three years later, it combined that firm with Practice Velocity to form Experity. The company sells software that it says helps health-care practices simplify their workflows, obtain reimbursement for services and communicate with patients.

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