Nashville-based SpecialtyCare has bought a Georgia concern for an undisclosed sum, adding at least 75 hospitals to the network of several hundred facilities SpecialtyCare currently supports across the country.

The June 1 transaction for 20-year-old NeuroMatrix continues SpecialtyCare’s acquisition spree. Last year, it moved into neuromonitoring — where specialists track patients' nervous systems during surgery — by buying companies in California and Pennsylania. It followed that up early this year with the acquisition of a Minneapolis-based company.

The provider of various clinical services to hospitals  — particularly in operating rooms — has been on a steady acquisition pace since a New York private-equity firm last spring pumped $123 million into the six-year-old venture. With the NeuroMatrix deal under its belt, SpecialtyCare now counts more than 735 hospitals as clients.