UnitedHealthcareHigh ImpactCoverage

Massachusetts Medicaid: Eligibility changes for SCO, One Care enrollees

Published March 1, 2026Effective January 1, 2026

AI Summary

Effective January 1, 2026, Massachusetts SCO and One Care members who lose MassHealth Medicaid eligibility will have only Medicare benefits covered during a 60-day deeming period. Providers must verify eligibility through the UnitedHealthcare portal and will not be reimbursed for Medicaid-only services during this period.

Action Required

Immediately: Billing team must verify member eligibility through UnitedHealthcare Provider Portal before providing services to SCO/One Care members. Check if Medicaid shows inactive with end date indicating deeming period. Stop billing Medicaid-only services (adult foster care, day habilitation, chore services, home-delivered meals, etc.) for members in deeming period. Establish separate payment agreements with members if continuing non-Medicare covered services. Update billing workflows to distinguish between Medicare-covered and Medicaid-only services.

Affected Billing Codes

T1019T102099509T2022T1023S5101S5102T2003

Plan Types

Medicare Advantage, Medicaid

States

MA

Specialties

all-specialties