Medicare Eligibility by Age and Disability
Most people qualify for Medicare at 65, but younger individuals with disabilities, ESRD, or ALS may also be eligible. Understanding your pathway to Medicare helps you plan for Medicaid coordination and D-SNP enrollment.
Educational information only. SubsidyCheck does not determine eligibility, enroll you in a plan, or act as a government agency. Final decisions are made by Medicare, your state Medicaid agency, and licensed plan administrators.
Age-Based Eligibility at 65
You become eligible for Medicare at 65 if you or your spouse worked and paid Medicare taxes for at least 10 years (40 quarters). You can enroll starting three months before your 65th birthday month.
If you are already receiving Social Security benefits, you are typically auto-enrolled in Parts A and B. If not, you must actively enroll to avoid gaps and potential late enrollment penalties for Part B.
Disability-Based Eligibility Before 65
If you receive Social Security Disability Insurance (SSDI) for 24 months, you automatically qualify for Medicare. The 24-month waiting period begins when your SSDI benefits start, not when your disability began.
People under 65 on Medicare due to disability may also qualify for Medicaid, creating dual-eligible status. This opens the possibility of D-SNP enrollment, subject to state Medicaid rules and plan availability.
ESRD and ALS Exceptions
End-Stage Renal Disease (ESRD) qualifies you for Medicare regardless of age, though enrollment timing depends on your treatment status. Amyotrophic Lateral Sclerosis (ALS) qualifies you immediately upon SSDI approval—there is no 24-month waiting period.
Both conditions have specific coordination rules with Medicaid. If you have ESRD or ALS and limited income, explore Medicaid and MSP options alongside Medicare enrollment.
Part A, B, and Enrollment Timing
Part A is usually premium-free if you or your spouse paid sufficient Medicare taxes. Part B has a monthly premium, though Medicaid or an MSP may pay it if you qualify. Part D covers prescriptions and is optional with Original Medicare but included in most D-SNPs.
Missing your Initial Enrollment Period for Part B can result in a lifelong late enrollment penalty. If you have employer coverage, different rules may apply—verify before delaying enrollment.
Connecting Medicare Eligibility to D-SNPs
Medicare eligibility alone does not qualify you for a D-SNP—you also need Medicaid. Many people gain Medicaid at the same time they become Medicare-eligible due to disability, but income and asset rules vary by state.
SubsidyCheck can help you explore whether your situation may fit dual-eligible criteria, but only Medicare and your state Medicaid agency make official determinations.
Frequently asked questions
Can I get Medicare at 62?
Not based on age alone. You may qualify at 62 if you have been on SSDI for 24 months, have ALS, or have ESRD. Early Social Security retirement at 62 does not trigger Medicare eligibility.
Do I need to sign up for Medicare if I have Medicaid?
If you are Medicare-eligible, you should enroll in Medicare. Medicaid may not cover all the services Medicare provides, and failing to enroll can create coverage gaps.
What is the Part B late enrollment penalty?
If you do not enroll in Part B when first eligible and do not have qualifying coverage, you pay an extra 10% of the Part B premium for each 12-month period you delayed. This penalty lasts as long as you have Part B.
Can disabled individuals under 65 join a D-SNP?
Yes, if they have both Medicare and qualifying Medicaid. Age is not a barrier—dual eligibility is what matters.
Sources & official references
Related D-SNP guides
Curious whether a D-SNP may fit your situation?
Take our educational eligibility check. It does not enroll you in a plan or guarantee benefits.