Medicare Advantage plans deny prior authorization for post-acute care at unusually high rates
A new HHS OIG report shows Medicare Advantage plans denied prior authorization requests for specialized post-acute care at unusually high rates in 2024 and 2025. The report indicates these denials disproportionately affected requests for skilled nursing, inpatient rehabilitation, and home health services following hospitalizations. This pattern follows earlier OIG findings that MA plans create systematic barriers to medically necessary care. The OIG will likely increase audit scrutiny on MA prior-authorization patterns for these services. Billing teams supporting post-acute transitions should proactively document medical necessity and prepare for a higher volume of appeals on rehab-related claims from MA beneficiaries.