You generally qualify for Medicare when you turn 65 years old. This is the standard eligibility age for most people to enroll in Medicare Part A (Hospital Insurance) and Part B (Medical Insurance)

. However, there are exceptions that allow for earlier enrollment before age 65, including:

• If you have a disability and have been receiving Social Security Disability Insurance (SSDI) benefits for 24 months.
• If you have End-Stage Renal Disease (permanent kidney failure requiring dialysis or transplant).
• If you have Amyotrophic Lateral Sclerosis (ALS, also called Lou Gehrig’s disease), you are automatically enrolled when disability benefits begin regardless of age

Most people are automatically enrolled in Medicare around their 65th birthday if they are receiving Social Security or Railroad Retirement Board benefits. Others must actively sign up during their Initial Enrollment Period, which starts 3 months before the month they turn 65 and lasts for 7 months

. In summary:

• Standard Medicare eligibility age: 65 years old.
• Early eligibility: Under 65 if disabled (SSDI for 24 months), or with ESRD or ALS.
• Enrollment: Automatic if receiving Social Security benefits before 65; otherwise, you must sign up during your Initial Enrollment Period around age 65

This ensures coverage begins promptly and helps avoid late enrollment penalties.