Medicare Eligibility Criteria

1. Age-Based Eligibility

  • Must be 65+
  • U.S. Citizen or Lawful Permanent Resident continuously for at least 5 years

2. Work History or Spousal Coverage

  • At least 10 years (40 credits) of Medicare-covered employment by you or your spouse

3. Early Enrollment Options

  • Disability (SSDI) recipients: Medicare begins in month 25 of disability benefits.
  • End‑Stage Renal Disease (ESRD): Eligible at diagnosis, regardless of age.
  • Amyotrophic Lateral Sclerosis (ALS): Starts immediately upon SSDI eligibility.

4. Medicare Parts & Enrollment Essentials

PartOverviewEligibility / Timing
Part AHospital InsuranceFree with 40 credits; otherwise paid
Part BMedical (Doctors, Outpatient)Enrollment typically at 65; late penalties if delayed
Part CMedicare Advantage (via private insurers)Must be enrolled in Part A & B; availability varies locally
Part DPrescription Drug CoverageMust be enrolled in Part A/B; delay incurs penalty and drug gap risk

5. Key Enrollment Periods

  • Initial Enrollment Window: 3 months before until 3 months after 65th birthday
  • General Enrollment: Jan 1 – Mar 31, with Part B effective July
  • Special Periods: For people with Work-based or other coverage

6. Important Notes

  • Dual-status beneficiaries (e.g., ESRD + age) follow standard enrollment periods
  • People with prior Big Group insurance must carefully plan to avoid late enrollment penalties
  • Lifetime benefits are lost if penalties apply and maintained consistently upon future enrollment

Visual Design Tips

  • Use bold headers, clean bullet points, and color-coded sections
  • Incorporate icons:
    • 🎂 for age
    • 🏥 for coverage types
    • ⏰ for enrollment windows
  • Maintain an easy-to-read flowchart style, starting with the age box at top and branching to pathways (work history, disability, specific diseases)
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