Anthem offers four main Medicare Advantage plan types for 2026, plus special needs plans (SNPs) for people with Medicaid or certain chronic conditions, but its lineup is not evenly distributed across states. California gets only HMO-POS plans. Indiana has the widest selection, with plans across four types.
HMO-POS, the plan type with Anthem's lowest average premium, is sold in 10 of its 12 states. In the five states with one plan type (California, Colorado, Connecticut, Missouri and Nevada), the choice comes down to Anthem or another insurer.
- HMO: Anthem HMO plans require you to choose a primary care doctor who coordinates all care and authorizes specialist visits. Coverage is limited to in-network providers except for emergencies, urgently needed care and out-of-area dialysis.
- HMO-POS: Anthem HMO-POS plans keep the primary care doctor and referral requirements for in-network specialists but allow out-of-network visits for certain services at higher cost.
- PPO: Anthem PPO plans require no primary care physician and no specialist referrals. You can see any Medicare-accepting provider who agrees to treat you. In-network visits cost less and out-of-network care is covered at higher rates.
- Regional PPO: Anthem Regional PPO plans extend full PPO flexibility across a Medicare-defined region, which can include multiple states, so members who split time between states in that region stay in network.





