PROVIDENCE, R.I. – CVS Health has agreed to pay $450,000 to the federal government to settle allegations that several of its Rhode Island retail pharmacies filled forged and invalid painkiller prescriptions. The agreement announced Monday is the culmination of a two-year investigation by U.S. Attorney Peter Neronha’s office and the Drug Enforcement Administration’s Office of Diversion Control into several of the Woonsocket, Rhode Island-based CVS’s retail pharmacy locations. The DEA’s Diversion Control offices routinely review pharmacies across the country looking for violations of the Controlled Substances Act, said Jim Martin, a spokesman for the U.S.