Grassley, a member of the Senate Finance Committee, wrote to state Medicaid agencies earlier this year, asking them to list their top 10 prescribers of eight drugs commonly used in psychiatry. It may be that these doctors have good reasons for writing the most prescriptions for these drugs, such as OxyContin and Xanax, but it might also point out instances of overuse or even fraud. In Florida, for example, one physician wrote 96,685 prescriptions for mental health drugs over a 21-month period. That works out to more than 150 prescriptions a day, seven days a week, for nearly two years.