The California Report Of Suspected Medicare Provider Fraud (CROSS) is a system that allows Californians to report suspected Medicare fraud. The CROSS is administered by the California Department of Health Care Services (DOCS) and is designed to help detect and prevent fraud, waste, and abuse in the Medicare program. Reportable activities include false representations, billing for services not rendered, double billing, upcoming, and kickbacks. CROSS also allows providers to report suspected fraud by other providers, including competitors, as well as any potential abuses of Medicare beneficiaries. Types of California Report Of Suspected Medicare Provider Fraud include: 1. False Representations 2. Billing for Services Not Rendered 3. Double Billing 4. Upcoming 5. Kickbacks 6. Abuse of Medicare Beneficiaries.