The answer
Do I still pay the Part B premium with Medicare Advantage?
Yes.
Even when you join a Medicare Advantage plan (your Medicare benefits delivered through a private plan), you continue to pay your monthly Part B premium, which is $202.90 in 2026. Many Medicare Advantage plans charge a $0 plan premium of their own, but that is separate from the Part B premium you owe to Medicare. Some plans even offer a Part B premium reduction, where the plan pays back part of your Part B premium, though availability varies by plan and location. You also remain responsible for the Part B annual deductible of $283 in 2026 where it applies, and your plan sets its own copays and coinsurance for covered services. So the Part B premium is a baseline cost of being in Medicare, whether you choose Original Medicare or Medicare Advantage.