What is Medicare Advantage?

How Medicare Advantage works

Instead of receiving your benefits directly from the federal government, you receive them through a private insurer that contracts with Medicare. These bundled plans cover the same services Original Medicare covers (Parts A and B) and generally include prescription drug coverage (Part D) as well — under one insurance card. The federal program overview is on the Medicare.gov "Parts of Medicare" page.

• A private insurer administers your benefits while you remain in the Medicare program.
• Most plans use HMO or PPO networks with specific doctors and hospitals.
• Going out-of-network typically costs more, or may not be covered at all.
• Some services may require prior authorization before they're covered.
• Plans must cover the services Original Medicare covers, and many include additional benefits.

Benefits Medicare Advantage plans may include

In addition to Part A and Part B services, many Medicare Advantage plans include benefits that Original Medicare does not cover. Availability varies by plan and county.

• Prescription drug coverage (Part D) built into the plan.
• Routine dental, vision, and hearing care.
• Fitness memberships (such as SilverSneakers or Renew Active) and wellness programs.
• Telehealth visits and 24/7 nurse lines.
• Over-the-counter allowances, transportation, or meal benefits (varies by plan).
• An annual in-network out-of-pocket maximum that caps what you pay for covered Part A and B services.
• One plan card and one set of paperwork for most services.

Considerations

• Your preferred doctors and hospitals must participate in the plan's network.
• Some plans require referrals before seeing a specialist.
• Prior authorization may apply to certain services.
• Plan availability, benefits, and premiums vary by county.
• Extra benefits such as dental and vision may have their own annual caps and network restrictions.
• Provider networks are subject to change at any time. The provider may also change at any time. You will receive notice when necessary. Benefits, premiums, and/or copayments/coinsurance may change on January 1 of each year.

Common plan types

• HMO (Health Maintenance Organization): Generally requires staying in-network and getting referrals to see specialists.
• PPO (Preferred Provider Organization): Allows out-of-network care at a higher cost share; in-network care costs less.
• SNP (Special Needs Plan): Designed for people with specific chronic conditions or those who have both Medicare and Medicaid.

Eligibility & enrollment windows

To enroll in a Medicare Advantage plan you must (1) be enrolled in both Part A and Part B, and (2) live in the plan's service area. You can join, switch, or drop plans during the Annual Enrollment Period (Oct 15 – Dec 7), the Medicare Advantage Open Enrollment Period (Jan 1 – Mar 31), or a Special Enrollment Period triggered by qualifying life events. Verify the exact windows on the Medicare.gov enrollment page.

Common mistakes to avoid

• Choosing a plan based only on the monthly premium; copays, drug tier costs, and the out-of-pocket maximum also affect total cost.
• Not checking whether your specific doctors, hospitals, and pharmacies are in the plan's network for the coming plan year.
• Overlooking prior-authorization requirements for procedures, imaging, or specialty drugs.
• Assuming last year's plan will still fit your needs — benefits, formularies, and networks can change every January 1.