Medicare for People Under 65 with Disabilities: What You Need to Know

Most people think of Medicare as health insurance for people 65 and older. But roughly 9 million Medicare beneficiaries are under age 65 — enrolled because of a disability, end-stage renal disease, or ALS. If you or a family member is in this situation, here’s what you need to know about accessing Medicare before age 65.

Who Qualifies for Medicare Under 65?

There are three pathways to Medicare eligibility before age 65:

1. Social Security Disability Insurance (SSDI)

If you’re receiving Social Security Disability Insurance (SSDI) benefits, you become eligible for Medicare after you’ve received SSDI for 24 months. This two-year waiting period is one of the most frustrating aspects of the system — you’re disabled, on limited income, and must wait two years for Medicare to kick in.

During the waiting period, you may have options for coverage through:

• COBRA continuation from a former employer
• A spouse’s employer coverage
• Medicaid (if income-eligible)
• Affordable Care Act (ACA) marketplace plans (with income-based subsidies)

2. End-Stage Renal Disease (ESRD)

People with End-Stage Renal Disease — permanent kidney failure requiring dialysis or a transplant — qualify for Medicare regardless of age. Generally, Medicare coverage begins the 4th month of regular dialysis, or earlier if you receive a kidney transplant.

You don’t need to be receiving SSDI to qualify through this pathway. However, ESRD Medicare typically ends 36 months after a successful kidney transplant (unless you also qualify through age or disability).

3. Amyotrophic Lateral Sclerosis (ALS)

People diagnosed with ALS (Lou Gehrig’s disease) are the only disability group exempt from the 24-month SSDI waiting period. Medicare coverage begins the same month SSDI payments start — no waiting period.

What Does Medicare Cover for Under-65 Beneficiaries?

Medicare coverage for under-65 beneficiaries is identical to coverage for people 65 and older. You get the same Part A, Part B, and Part D benefits:

• Part A: Hospital stays, skilled nursing facility care, hospice, some home health
• Part B: Outpatient care, doctor visits, preventive services, durable medical equipment
• Part D: Prescription drug coverage (via standalone plan or Medicare Advantage)

Challenges Unique to Under-65 Medicare Beneficiaries

Limited Medigap Access

Here’s a significant gap: under federal law, insurance companies are NOT required to sell Medigap (Medicare Supplement) plans to people under 65. Only about half of states mandate that insurers offer at least some Medigap coverage to under-65 beneficiaries — and those states may limit which plans are available or charge higher premiums.

If you’re under 65 and on Medicare due to disability, research your state’s specific rules. States with mandatory Medigap access for under-65 Medicare beneficiaries include California, Colorado, Connecticut, Florida, Georgia, Louisiana, Maine, Missouri, New Hampshire, New Jersey, New York, Oklahoma, Oregon, Pennsylvania, South Carolina, and others — but rules change, so verify current requirements.

Higher Premiums

Even in states that require Medigap access for under-65 beneficiaries, premiums are often significantly higher than for 65+ enrollees — sometimes 2–3x the standard rates. This can make Medigap financially out of reach for many disabled Medicare beneficiaries on fixed incomes.

Medicare Advantage as an Alternative

Medicare Advantage plans ARE available to under-65 beneficiaries (insurers cannot discriminate based on age within Medicare eligibility). This makes Medicare Advantage often the most practical option for under-65 beneficiaries who want extra benefits and managed out-of-pocket costs, even if Medigap isn’t accessible or affordable.

Medicaid and Medicare: Dual Eligibility Under 65

Many under-65 Medicare beneficiaries also qualify for Medicaid, making them “dual eligible.” This combination can be very powerful:

• Medicaid can pay your Medicare Part B premium
• Medicaid can cover services Medicare doesn’t (dental, vision, long-term care in some states)
• Dual Eligible Special Needs Plans (D-SNPs) can coordinate benefits seamlessly

If you’re under 65, on Medicare due to disability, and have limited income, strongly consider applying for your state’s Medicaid program or Medicare Savings Programs even if you think you might not qualify.

Returning to Work While on Medicare

Concerned about losing Medicare if you return to work? The Social Security Administration has programs to ease this transition:

• Trial Work Period: You can work for up to 9 months (not necessarily consecutive) while still receiving full SSDI benefits
• Extended Period of Eligibility: After the trial work period, a 36-month window during which SSDI can restart without a new application if you stop working
• Medicare Continuation: Even if SSDI payments stop because you’re working, you can typically continue Medicare for at least 93 months (nearly 8 years) after your trial work period ends

The fear of losing health coverage is a major barrier to returning to work for many disabled individuals. Understanding these protections can help you make the transition more confidently.

Bottom Line

Medicare for under-65 beneficiaries provides the same core coverage as it does for seniors, but with important differences around Medigap access and potential coordination with Medicaid. If you’re navigating Medicare before 65 due to a disability, ESRD, or ALS, working with a licensed Medicare broker who understands your specific state’s rules is especially valuable.