Many immigrant families in Southern California reach 65 with very specific Medicare questions that general guides don't answer: does my time as a permanent resident count? does it matter if I only worked a few years in the U.S.? does my ITIN help in any way? This guide explains, in plain terms, how Medicare eligibility actually works for lawful permanent residents, without assuming you already know the system.
The 5-year continuous residency requirement
To qualify for Medicare as a non-citizen, you generally must be a lawful permanent resident (green card holder) and have lived in the United States continuously for at least 5 years before applying for Medicare. That 5-year period is counted from the date you obtained permanent residency, not from your arrival in the country if you arrived under a different status before receiving your green card.
'Continuous' is the key word: short trips outside the country, like vacations or family visits, generally do not interrupt that period, but a lengthy absence could affect the count. In addition to this residency requirement, you must meet the age requirement (65) or qualify earlier due to disability or certain specific conditions, just like any other Medicare applicant.
Availability, cost, benefits, and eligibility vary by person, product, contract, and insurance company, as well as by your service area. Guarantees are subject to the claims-paying ability of the issuing insurance company. Karla Arámburo is not affiliated with or endorsed by Medicare or the federal government.
Why the 40 work credits matter
Once you meet the residency and age requirement, the next factor is your work history, because it determines whether you pay a monthly premium for Part A (hospital coverage) or not. If you — or your spouse — worked and paid Medicare taxes for the equivalent of about 10 years (accumulating 40 work credits), you qualify for premium-free Part A, just like any worker with that history.
If you did not accumulate those 40 credits — for example, because you worked fewer years in the U.S., or worked without a Social Security number valid for employment before regularizing your status — you may still be eligible for Medicare by meeting the residency and age requirement, but you will have to pay a monthly premium for Part A, in addition to the Part B premium most people pay. That Part A premium varies depending on how many credits you did accumulate: 30 to 39 credits reduces the premium; fewer than 30 credits means the full premium.
Help if you don't qualify for premium-free Part A
Paying an extra premium for Part A can add up to a meaningful monthly cost, but it does not mean you have no options. The Medicare Savings Programs administered by Medi-Cal — QMB, SLMB, and QI — can help cover Part A and/or Part B premiums, and in some cases deductibles and coinsurance too, depending on your income and assets. For the full detail on these programs, review our Medicare Savings Programs guide.
It is also worth checking whether you qualify for Extra Help with the cost of your prescription drugs, and whether your income is low enough to qualify for full Medi-Cal alongside Medicare, which would give you access to a dual-eligible (D-SNP) plan with additional benefits.
Immigration status, ITIN, and Medicare: what each thing is
It's common to confuse three distinct concepts: your immigration status, your ITIN, and your Medicare eligibility. Your immigration status (for example, lawful permanent resident) is what Medicare actually evaluates for eligibility, along with your residency and work history. An ITIN, by contrast, is simply a number the IRS issues so someone can file U.S. taxes without a Social Security number; it neither grants nor takes away Medicare eligibility, and many ITIN holders never become eligible for Medicare, while others become eligible without ever having had one.
Naturalized citizens follow the same age, residency, and work-credit eligibility rules as any other beneficiary; what gets evaluated is not their year of naturalization, but their history of continuous lawful residency and accumulated work over the years.
If you don't qualify for Medicare yet
If you still have years to go before meeting the continuous residency requirement, or have questions about your specific situation, many families at this stage also ask us about financial protection in the meantime. We offer life insurance with an ITIN, which does not depend on your Medicare status or a Social Security number, and can be a reasonable starting point to protect your family while Medicare requirements are being met.
Bilingual help to review your specific case
I am Karla Arámburo, an independent, bilingual, California-licensed insurance agent, and I help immigrant families in Orange, Los Angeles, San Diego, and Riverside counties understand their specific Medicare eligibility situation, check whether they qualify for savings programs, and explore options in the meantime — all in Spanish or English, at no cost to you.
You can call or text (619) 321-8733 to talk through your specific case. This page is general education, not legal, immigration, or individualized advice.
Frequently asked questions
How long must I live in the U.S. as a permanent resident to qualify for Medicare?
You generally need to have been a lawful permanent resident (green card holder) for 5 continuous years before applying for Medicare, in addition to turning 65 or qualifying due to disability. That 5-year period must be continuous, without lengthy departures from the country that interrupt it.
Does having an ITIN give me the right to Medicare?
No. An ITIN is an IRS number for tax purposes, not an immigration status. You can hold an ITIN for years without being eligible for Medicare, and you can also be eligible for Medicare without ever having had an ITIN. They are two completely independent things.
What if I'm a permanent resident but never worked legally in the U.S.?
You can still be eligible for Medicare at 65 after meeting the 5-year continuous residency requirement, but you will likely have to pay a monthly premium for Part A, in addition to the Part B premium, because you did not accumulate the work credits needed for premium-free Part A.
What are the 40 work credits and how do you earn them?
They are the equivalent of roughly 10 years of employment during which Medicare (FICA) taxes were paid on your earnings, generally reported under a Social Security number valid for work. You can earn up to 4 credits per year, depending on your income. With 40 credits, you qualify for Part A with no monthly premium.
Can my spouse qualify me for premium-free Medicare if they worked 10 years?
Yes, in many cases. If your spouse (current, or former spouse under certain conditions) accumulated the 40 work credits, you may qualify for premium-free Part A based on their record, as long as you also meet the residency and age requirements.
If I don't qualify for premium-free Part A, is any help available?
Yes. The Medicare Savings Programs (QMB, SLMB, QI) administered through Medi-Cal can help pay your Part A and/or Part B premiums, depending on your income and assets. It is worth checking whether you qualify before assuming the full cost is out of reach.
I don't qualify for Medicare yet — what are my options in the meantime?
It depends on your specific health situation, age, and budget, and is worth reviewing in a personalized conversation. Many families in this situation also ask us about life insurance with an ITIN, which does not depend on your Medicare status or a Social Security number.