Medicare Is Not Free — Here's What You'll Pay

A common misconception is that Medicare is entirely free once you turn 65. In reality, Medicare involves a variety of costs including premiums, deductibles, coinsurance, and copayments. Understanding these terms and how they apply to each part of Medicare helps you budget accurately and avoid surprises.

Key Cost Terms Defined

  • Premium: The monthly amount you pay to maintain your Medicare coverage, regardless of whether you use medical services.
  • Deductible: The amount you must pay out of pocket before Medicare starts covering your services.
  • Coinsurance: Your share of service costs after the deductible is met, expressed as a percentage (e.g., 20%).
  • Copayment (Copay): A fixed dollar amount you pay for a specific service (e.g., $20 per doctor visit).
  • Out-of-Pocket Maximum: The most you'll pay in a plan year before your insurance covers 100% — Original Medicare has no cap, but Medicare Advantage plans do.

Part A Costs

Part A is premium-free for most enrollees who have sufficient work history (40+ quarters of Medicare tax payments). However, if you don't meet that threshold, you may pay a premium.

When you use Part A benefits, you'll encounter:

  • Inpatient hospital deductible: Applies per benefit period (not per calendar year). A new benefit period starts after you've been out of the hospital for 60 consecutive days.
  • Hospital coinsurance: Days 1–60 are typically covered after the deductible. Days 61–90 require daily coinsurance. Beyond 90 days, you use "lifetime reserve days" with higher daily coinsurance.
  • Skilled nursing facility coinsurance: Days 1–20 are typically fully covered. Days 21–100 require daily coinsurance. After day 100, Medicare pays nothing.

Part B Costs

Part B always requires a monthly premium. The standard premium is set each year by CMS and applies to most enrollees. Higher-income individuals pay more through what's known as the Income-Related Monthly Adjustment Amount (IRMAA).

  • Annual deductible: Set each year by CMS. Once met, Medicare pays its share of covered services.
  • Coinsurance: You typically pay 20% of the Medicare-approved amount for most Part B services. There is no out-of-pocket maximum under Original Medicare, which is why many people add a Medigap (supplemental) policy.
  • Preventive services: Many preventive screenings and the Annual Wellness Visit are covered at 100% with no cost-sharing when you use a Medicare-participating provider.

Part D Costs

Prescription drug plan costs vary by plan but generally include:

  • Monthly premium — varies by plan
  • Annual deductible — many plans have one; some do not for lower-tier drugs
  • Copays or coinsurance — differ by drug tier (generic drugs typically cost less than brand-name)
  • Catastrophic coverage: After reaching the out-of-pocket threshold (set annually), your costs drop significantly for the rest of the year

How Medicare Advantage Changes the Cost Picture

Medicare Advantage (Part C) plans often have different — sometimes lower — cost structures than Original Medicare:

  • Many plans have $0 premiums (though you still pay your Part B premium)
  • Plans include an annual out-of-pocket maximum, protecting you from unlimited exposure
  • Cost-sharing is typically structured as copays per visit rather than coinsurance percentages
  • In-network vs. out-of-network costs can differ significantly

Strategies to Reduce Your Medicare Costs

  1. Add a Medigap plan: Supplements Original Medicare to cover coinsurance, copays, and sometimes the Part A deductible.
  2. Apply for Extra Help: If your income and assets are limited, the Low Income Subsidy program can reduce Part D costs.
  3. Look into Medicare Savings Programs: State programs that help pay Part B premiums, deductibles, and coinsurance.
  4. Choose generic medications: Work with your doctor to use generics where possible to minimize Part D costs.
  5. Stay in-network: If you're on Medicare Advantage, using in-network providers keeps your costs lower.

The Bottom Line

Medicare costs can add up if you're not prepared. Taking time to understand each type of cost — and exploring programs that can help reduce them — is one of the most valuable things you can do before and during your Medicare coverage.