"dual eligibles", get help with their medical costs, like having all their premiums and copays paid for
metaAI
The LIS (Low-Income Subsidy) category assigned to members whose costs are fully subsidized and who receive the most assistance is typically referred to as "dual eligibles" or "full-benefit dual eligibles." These individuals qualify for both Medicare and Medicaid benefits and have their premiums, copays, and coinsurance fully covered. They receive the highest level of assistance and support through the LIS program.