WASHINGTON, June 7 -- The U.S. Department of Justice issued the following news release: Five individuals were arrested yesterday in Los Angeles on criminal charges related to their roles in a years-long scheme to defraud Medicare of more than $15 million through sham hospice companies and then to launder the fraud proceeds. According to an indictment unsealed yesterday, three of the defendants--Petros Fichidzhyan, 43, of Granada Hills, California, Juan Carlos Esparza, 32, of Valley Village, C  more