How Medicare Works
Step-by-Step: How Medicare Works When You Turn 65
Turning 65 is your first big Medicare milestone. Here’s a simple, easy-to-follow walkthrough so you know exactly what to do and when to do it.
Step 1: Know Your Enrollment Window
You get a 7-month Initial Enrollment Period (IEP):
- 3 months before your 65th birthday month
- Your birthday month
- 3 months after
Best advice: Enroll early (during the 3 months before your birthday month) so your coverage starts on time.
Step 2: Are You Automatically Enrolled?
You may be automatically enrolled in Part A and Part B if:
- You’re already receiving Social Security benefits
- You’re receiving Railroad Retirement benefits
If yes → Your Medicare card will arrive in the mail.
If no → You must sign up yourself through Social Security (online, phone, or local office).
Step 3: Understand What You’re Enrolling In
When you sign up at 65, you’re enrolling in:
- Part A – Hospital coverage
- Part B – Doctor & outpatient coverage
Together, they are called Original Medicare.
Step 4: Decide If You Need Drug Coverage
Step 4: Decide If You Need Drug Coverage
Original Medicare does NOT include prescriptions.
You’ll need to:
- Add a Part D drug plan
OR - Choose a Medicare Advantage (Part C) plan that includes drug coverage.
If you don’t enroll in drug coverage when first eligible (and don’t have other creditable coverage), you may face a late enrollment penalty later.
Step 5: Choose Your Coverage Path
After enrolling in Part A & B, you have two main directions:
Option 1: Stay with Original Medicare
You can add:
- A Medicare Supplement (Medigap) plan (helps cover deductibles & coinsurance)
- A Part D drug plan
See almost any doctor nationwide who accepts Medicare
More predictable costs (with Medigap)
Option 2: Choose Medicare Advantage (Part C)
- Replaces Original Medicare
- Often includes prescription drugs
- May include dental, vision, hearing benefits
- Has an annual out-of-pocket limit
- Uses provider networks (HMO/PPO)
Bundled coverage
Often lower upfront premiums
Extra benefits
Step 6: Confirm Your Coverage Start Date
If you enroll:
- Before your birthday month → Coverage starts the 1st of your birthday month
- If you enroll later → Coverage may start 1–3 months later
Enrolling early prevents delays.
Step 7: Review Costs
At 65, most people pay:
- Part A: $0 premium (if eligible)
- Part B: Monthly premium
Additional costs depending on whether you choose Medigap, Part D, or Advantage
Is Your Current Plan Still the Best Fit?
We’ll help you compare your current coverage and uncover better options at no cost.
