kickbacks federal regulations Anti-Kickback Statute United States Anti-Kickback Statute regulations and penalties illegal patient referrals Violation of Anti-Kickback Statute federal regulations fraud and abuse laws for medical professionals Office of Inspector General If so: OIG Stark Law http://oig.hhs.gov/compliance/physician-education/01laws.asp http://oig.hhs.gov/compliance/physician-education/01laws.asp