Eligibility for Medicare Part B is varies from Medicare eligibility in Part A. An individual must be a U.S. resident and a U.S. citizen. If an 
individual is not a U.S. citizen, but an alien who is admitted to the United States for permanent residence and has been a resident for the past 5 continuous years prior to applying for Medicare.
Eligibility for Medicare Part B Enrollment
- 65 Years or Older
- U.S. Citizen Or..
- …Permanent resident legally in the U.S. for at least five continuous years.
- Under 65 receiving Social Security Disability Benefits…
- … you will automatically be enrolled in Part A and B after 24 months of disability benefits
Part B...