Of the 115 healthcare accelerators in the world, 87 are in the U.S., most of them are geared to digital health and are under two years old. Although many accelerator companies have created jobs and there have been some exits, most have yet to show anything for the investment in them. That’s understandable given the age of the average accelerator and given that it can take seven years before a company can realize a return on capital for investors. But the consensus of a new report published by the California HealthCare Foundation is that we should expect some consolidation soon.