California HMO Kaiser Permanente has agreed to pay $3.75 million to resolve allegations that several of its California units submitted false bills to the federal government for treatment of Medicare and Medi-Cal patients, officials announced. The U.S. attorney's office in San Francisco contended that from 1996 through 2002, Kaiser units in California submitted bills that falsely claimed treatment had been provided by teaching physicians. In fact, the government said, the care had been provided by unsupervised residents, the Los Angeles Times reports.