A grand jury indictment alleges that James Burkhart and three others created shell companies and used them to falsify charges to Medicare and Medicaid.

Phase one of the study, developed by Indiana University's Center for Aging Research and the Regenstrief Center, placed nurses in the state's nursing homes who were trained to recognize problems in geriatric patients before they turn into full-blown issues that require hospitalization.

Organizers say the training could impact as many as 1,000 nursing home residents in southwestern Indiana.