Medicare AdvantageAdministrativeMedium impact
Reason Some Crossover Claims do not Process Automatically
Missouri Medicaid (MO HealthNet)·MO·Provider Notice
We identified it
Jun 20, 2026
Summary
This policy explains why some Medicare to Medicaid crossover claims fail to process automatically in Missouri. Key issues include missing or incorrect NPI numbers in MO HealthNet files, Medicare Advantage plans not forwarding crossovers electronically, and mismatched participant information.
Action Required
Immediately: Verify your practice's NPI number is correctly registered with MO HealthNet by contacting mmac.providerenrollment@dss.mo.gov. For Medicare Advantage/Part C patients with Medicaid secondary, manually submit crossover claims through the MHD Web portal at www.emomed.com instead of waiting for automatic processing. Ensure all Medicare claims indicate when beneficiary has MO HealthNet eligibility.