According to the Office of the Inspector General (OIG), which is like the police force for government programs, doctors of chiropractic (DCs) have a less-than-stellar track record when it comes to documentation. The OIG issued a report in 2005 regarding Medicare’s payment for chiropractic services. Based on data from 2001, the OIG concluded that 67 percent of chiropractic claims were paid in error or fraudulent.