In its final report, published on Monday, the HMI maintains its findings about the three groups but no longer recommends divestiture.
It does, however, recommend that regulatory oversight of the sector be improved, and proposes the introduction of a supply-side health regulator, which will formulate a new approach to licensing hospitals based on need.
It also recommends the Competition Commission review its approach to “creeping mergers” to address the high level of concentration in the market.
The inquiry found Netcare, Life Healthcare and Mediclinic dominate the private hospital market, and commanded 86.9% of admissions in 2016.
“We have found the three large hospital groups, both individually and collectively, are able to secure steady and significant profits year on year. The hospital groups make it very hard for newcomers and fringe players to grow and to compete on merit,” the report says.
“The three groups are able to distort and prevent competition by binding the best medical specialists to their hospitals with inducement programmes … Further, the three largest groups all but dictate year-on-year price and cost increases for funders (medical schemes).”