Introduction

In early August 2026, the U.S. Centers for Medicare & Medicaid Services (CMS) released a comprehensive audit of California’s Medicaid program, Medi‑Cal. The audit highlighted extensive waste, fraud, and corruption that threatened the integrity of a system serving millions of low‑income Californians. By examining payment patterns, program growth, and contractor behavior, CMS identified serious irregularities that demanded immediate corrective action.

Key Findings of the Audit

The audit focused on three major areas. First, the In‑Home Supportive Services (IHSS) program showed a 24% cost increase over two years—almost double the national growth rate. Such a rapid rise raised red flags that prompted CMS to defer $867 million in payments while investigations continued.

Second, CMS discovered suspicious claims amounting to roughly $255 million. These claims involved billing for services rendered to deceased individuals, implausibly high patient loads, and statistical outliers among top IHSS billers. Third, the audit identified $220 million in payments directed toward individuals with ineligible immigration status, highlighting longstanding concerns about the use of federal funds for non‑citizen health care.

Impact on State Contractors and Nonprofits

While the audit focused on federal program integrity, it also intersected with state‑level concerns. A separate investigation revealed that a large nonprofit addiction treatment provider, Tarzana Treatment Centers, received millions in government contracts despite allegations of billing pressure and inflated patient numbers. The nonprofit’s CEO earned $2.36 million annually, and the organization’s revenue surged from $76.6 million in 2019 to $224.1 million in 2025. Although no direct fraud was proven in Medi‑Cal billing, the continued flow of funds to such entities raised questions about oversight and accountability.

Corrective Measures and Recommendations

CMS recommended several actions to restore confidence in Medi‑Cal. These include stricter verification of caregiver credentials, enhanced monitoring of IHSS expenditures, and a requirement that unions obtain explicit consent before deducting dues from Medicaid payments. The audit also urged California to develop transparent reporting mechanisms to prevent future overpayments and to align state spending with federal guidelines.

State officials are expected to implement these recommendations promptly. By adopting rigorous program‑integrity protocols, California can protect taxpayer dollars, ensure vulnerable beneficiaries receive appropriate care, and uphold the public trust essential to a successful Medicaid program.

Conclusion

The CMS audit of Medi‑Cal serves as a critical reminder of the importance of vigilant oversight in large public‑health programs. Addressing the identified fraud and waste will strengthen the system’s capacity to deliver health services to those who need them most, while safeguarding the resources provided by the American people.