Comparing Medicare Advantage plans on premium alone tells you almost nothing. Nearly every plan in a competitive market advertises a $0 premium, funded by federal payments rather than by your monthly check. What separates plans is the network you are locked into, the prior-authorization rules that gate care, and the out-of-pocket maximum that defines your worst-case year.
Run the cost comparison first
- Open medicare.gov/plan-compare and select Medicare Advantage for your ZIP code.
- Enter your prescriptions — most Advantage plans bundle drug coverage, so the drug list still drives the total.
- Sort by lowest drug plus premium cost and note the in-network out-of-pocket maximum for each of your top plans.
- Record the Star Rating and plan type (HMO, PPO, or Special Needs Plan).
Then verify the network yourself
This is the step most people skip and most people regret. For every doctor, specialist and hospital you rely on:
- Search the carrier's own directory, not Plan Finder.
- Call the practice and name the exact plan, not just the insurer.
- Confirm participation for the coming plan year — contracts turn over on January 1.
HMO plans generally cover nothing out of network except emergencies. PPO plans cover out-of-network care at a higher cost share and a separate, higher out-of-pocket maximum.
Read the prior-authorization posture
Most Advantage plans require prior authorization for advanced imaging, skilled nursing, home health, inpatient rehabilitation and specialty drugs. Original Medicare does not. Plan documents list which services are affected; the details sit in the Evidence of Coverage, linked from each plan page. Our Medicare Advantage primer covers appeal rights, which are meaningful — the large majority of appealed denials are ultimately overturned.
Weigh the alternative before enrolling
Advantage and Medigap are mutually exclusive paths, and switching from Advantage to Medigap later can require medical underwriting in most states. Read the side-by-side comparison before you choose, and use the comparison checklist to keep the two runs consistent.
Frequently asked questions
- How do I compare Medicare Advantage plans in my area?
- Enter your ZIP code in the Medicare Plan Finder and choose Medicare Advantage. Add your prescriptions so drug costs are included, then compare each plan's total projected annual cost, in-network out-of-pocket maximum, and Star Rating before checking whether your doctors participate.
- How do I check if my doctor is in a Medicare Advantage network?
- Do not rely on Plan Finder's provider data, which can lag. Search the carrier's own online directory for each doctor and hospital, then call the office and ask whether they accept that specific plan for the coming year, not just that carrier.
- What is a good out-of-pocket maximum for a Medicare Advantage plan?
- The federal in-network limit is $9,350 for 2025 and most plans set a lower cap. Treat anything near the federal maximum as a warning sign if you expect meaningful medical use, because that cap is the amount you could actually be asked to pay in a bad year.
- Do $0-premium Medicare Advantage plans really cost nothing?
- No. You still pay the standard Part B premium, which is $185 a month in 2025, plus copays, coinsurance and any out-of-network costs. The $0 refers only to the plan's additional premium.
- What are Medicare Advantage Star Ratings and do they matter?
- CMS scores plans 1 to 5 stars each year on quality, member experience and complaints. Plans at 4 stars or above earn bonus payments and a year-round Special Enrollment Period, and consistently low-rated plans can be terminated, so the rating is a reasonable tiebreaker between similar plans.
- When can I switch Medicare Advantage plans?
- During Annual Enrollment from October 15 to December 7, or during Medicare Advantage Open Enrollment from January 1 to March 31 if you already have an Advantage plan. Special Enrollment Periods apply for moves and other qualifying events.
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