Experian PLC, which has its North American headquarters in Costa Mesa, said Tuesday that it was buying Medical Present Value Inc. for $185 million.

Austin, Texas-based Medical Present Value is a venture-backed company that makes software to automate and analyze revenue collection from patients, insurers and government programs. It serves more than 75,000 large doctors’ groups.

Experian provides credit reports and other data.

The deal expands Experian’s healthcare business, which had been centered on managing patients’ payments to hospitals.

Medical Present Value will immediately become part of Experian. Its operations will remain in Austin, San Antonio and Plymouth, Mass.