Along with the HHS OIG, Medicaid Fraud Control Units (MFCUs) and other federal and state authorities are targeting ABA therapy providers suspected of submitting fraudulent claims under the Medicaid program as well. State-level investigations will often lead to federal referrals, and it is not unusual for multiple federal government authorities to be involved in pursuing criminal charges. https://natlawreview.com/article/applied-behavior-analysis-aba-medicaid-investigation-defense