How to Enroll in Medicare: Step-by-Step Guide for First-Time Applicants

James Neil | Jun 17 2025 14:00

Navigating Medicare for the first time can feel overwhelming, but it doesn’t have to be. At Medicare Benefits Group, we’re here to make the process simple, clear, and stress-free. Whether you’re nearing age 65 or qualifying due to a disability, this step-by-step guide will walk you through how to enroll in Medicare for the first time.

Step 1: Know When You’re Eligible

 

Most people become eligible for Medicare when they turn 65. You may also qualify earlier if you’ve received Social Security Disability Insurance (SSDI) for 24 months or have certain medical conditions such as End-Stage Renal Disease (ESRD) or ALS.

 

Initial Enrollment Period (IEP):
You have a seven-month window to enroll:

  • Begins three months before your 65th birthday

  • Includes your birthday month

  • Ends three months after your birthday month

Tip: Enroll early in your IEP to avoid delays or penalties.

Step 2: Decide Which Parts of Medicare You Need

 

Medicare is divided into four parts:

  • Part A (Hospital Insurance): Covers inpatient hospital stays, skilled nursing facility care, and some home health care. Usually premium-free if you've worked and paid taxes for at least 10 years.

  • Part B (Medical Insurance): Covers doctor visits, outpatient care, preventive services, and medical supplies.

  • Part C (Medicare Advantage): Offered by private insurance companies, these plans bundle Part A and B and often include additional benefits like vision, dental, and drug coverage.

  • Part D (Prescription Drug Coverage): Helps cover the cost of prescription medications.

You’ll need to decide if you prefer:

  • Original Medicare(Parts A and B) with optional Part D and a Medigap supplemental policy, or

  • A Medicare Advantage Plan(Part C), which often includes prescription drug coverage and other benefits.

Step 3: Enroll in Medicare

If You’re Already Receiving Social Security or Railroad Retirement Benefits

 

You’ll be automatically enrolled in Parts A and B. Your Medicare card will arrive by mail about three months before your 65th birthday.

If You’re Not Receiving Benefits

 

You’ll need to enroll manually through the Social Security Administration (SSA):

  • Online: ssa.gov/medicare

  • Phone: 1-800-772-1213

  • In person: At your local SSA office

Common Forms:

  • CMS-40B: Application for Enrollment in Medicare Part B

  • CMS-L564: Request for Employment Information (used if you're applying for Part B after age 65 and had employer coverage)

Step 4: Understand Enrollment Periods

  • Initial Enrollment Period (IEP): Your first and best opportunity to enroll penalty-free.

  • General Enrollment Period (GEP): January 1 to March 31 each year, for those who missed their IEP. Coverage begins July 1.

  • Special Enrollment Period (SEP): Available if you delayed enrolling due to employer coverage or other qualifying circumstances.

Tip: Missing your IEP may lead to late enrollment penalties that can increase your monthly premium permanently.

Step 5: Compare Plans Carefully

 

Once enrolled in Original Medicare, you can:

  • Add a Medicare Part D plan for prescription drug coverage.

  • Purchase a Medigap policy for supplemental coverage.

  • Choose to switch to a Medicare Advantage Plan if it fits your needs better.

At Medicare Benefits Group, our advisors help you evaluate plans based on coverage, costs, provider networks, and extra benefits.

Step 6: Stay Organized and Seek Support

  • Keep copies of all application forms and correspondence.

  • Review your plan options annually during Medicare Open Enrollment(October 15 through December 7).

  • Reach out for help—our experts are here to guide you.

Final Thoughts

 

Knowing how to enroll in Medicare is an important milestone in your healthcare journey. By understanding the process, key dates, and your coverage options, you can make confident decisions that protect your health and financial well-being.

 

Have questions or need help getting started? Contact Medicare Benefits Group for personalized guidance from a trusted advisor.