Medicare After Age 70 - What Changes and Why It Matters More Than You Think

Medicare for seniors doesn't stop changing once you've enrolled. By the time you're 70 years old, your doctors, prescriptions, and routines are often settled, which makes it tempting to leave your coverage alone. But Medicare plans change every year, some rules get less forgiving with age, and decisions about Part B, Medigap, and Medicare Advantage carry more weight. This guide explains how Medicare coverage for seniors works after 70, the plan and coverage differences that matter most now, and a simple yearly check to keep your options open.

What Changes After 70, at a Glance

Topic	Around age 65	After age 70
Medigap (Medicare Supplement)	Six-month open enrollment window: insurers can't turn you down or charge more for your health.	In most states, buying or switching usually means answering health questions, and you can be denied.
How you use care	Mostly checkups and a few prescriptions.	Often more specialists, tests, prescriptions, and the possibility of hospital or rehab stays.
Plan networks and formularies	Easy to work around when you rarely use care.	A dropped doctor or a drug moved to a higher tier affects you much more.
Income and premiums	Often still working.	Required retirement account withdrawals (generally starting at 73) and other income can push Part B and Part D premiums higher.
Equipment and home care	Rarely needed.	Walkers, power chairs, home health, and rehab become more likely, and coverage rules matter.
The insurance company	You barely interact with it.	Prior authorization, customer service, and claims handling shape your experience.

Medicare Part B Eligibility and Coverage After 70

Most people sign up for Part B at 65. But many people still working at 70 delayed it because they had health coverage through their own or a spouse's current job. If that's you, here's what to know:

Part B eligibility doesn't end at any age. If you're 65 or older and a U.S. citizen or lawful permanent resident of at least five years, you can enroll.
If you have job-based coverage from current work at an employer with 20 or more employees, you can usually delay Part B without a penalty and sign up later during a Special Enrollment Period, which lasts eight months after the job or coverage ends, whichever comes first.
If you delayed without qualifying coverage, you may owe a late enrollment penalty of 10% of the standard premium for each full 12-month period you went without Part B, for as long as you have it.
Retiree coverage, COBRA, and individual plans generally don't count as coverage from current work, so check before you rely on them.
If you contribute to a health savings account (HSA), stop contributing before you enroll, since Part A coverage can be backdated up to six months.

Part B coverage includes doctor visits, outpatient care, lab tests, preventive services, mental health care, durable medical equipment, and some home health care. Not sure what you're enrolled in? Our guide to Medicare eligibility requirements and how to check your status walks you through a Medicare eligibility check.

What Medicare Costs in 2026

Cost	2026 amount
Part A premium	$0 for most people (up to $565 a month if you worked fewer than 10 years)
Part A hospital deductible	$1,736 per benefit period
Hospital days 61 to 90	$434 per day
Skilled nursing facility, days 21 to 100	$217 per day
Part B standard premium	$202.90 a month
Part B deductible	$283 a year, then usually 20% coinsurance
Part D out-of-pocket drug cap	$2,100 a year

Why income matters more after 70

Higher-income beneficiaries pay an extra amount, called IRMAA, on top of the standard Part B and Part D premiums. It's based on your income from two years earlier, so your 2026 premiums reflect your 2024 tax return. Required minimum distributions, the sale of a home or investments, or a large Roth conversion can push you over a threshold for a year.

2026 Part B monthly premium by income (individual tax filers)

$109,000 or less$202.90

$109,001 to $137,000$284.10

$137,001 to $171,000$405.80

$171,001 to $205,000$527.50

$205,001 to $499,999$649.20

$500,000 or more$689.90

Joint filers: thresholds are double (starting at $218,000), with the top tier at $750,000. If your income dropped because of a life-changing event such as retirement or the death of a spouse, you can ask Social Security to use more recent income.

Plan and Coverage Differences That Matter More After 70

What matters after 70	Original Medicare + Medigap + Part D	Medicare Advantage
Seeing specialists	Any provider that accepts Medicare; no referrals.	Network rules; HMOs usually require referrals.
Heavy-use years	Fuller Medigap plans make costs predictable.	Copays add up to the plan's yearly out-of-pocket limit.
Prior authorization	Rarely required.	Common for hospital stays, rehab, imaging, and equipment.
Dental, vision, hearing	Not covered; buy separately.	Often included, with limits.
Travel or two homes	Works nationwide.	Mostly limited to the plan's service area.
Switching later	Changing Medigap plans may require health questions.	You can switch plans each year, but returning to Medigap may require health questions.

Neither path is better for everyone. The point is that the trade-offs feel different at 70 than they did at 65. Network limits and prior authorization matter more when you see specialists often, and the inability to get back into Medigap matters more as your health history grows. For a closer look at the 2027 rules plans must follow, see our guide to Medicare Advantage rule changes in 2027, and for how large insurers compare, Humana vs. UnitedHealthcare vs. Aetna.

"I Have Medicare A and B. What Else Do I Need?"

Original Medicare alone leaves real gaps: no yearly out-of-pocket cap, 20% coinsurance on most Part B services, and no drug coverage. Most people 70 and older add one of these combinations:

A Medigap plan plus a Part D drug plan, for predictable costs and freedom to see any Medicare provider. See how to choose a Medicare Supplement plan.
A Medicare Advantage plan, which usually includes drug coverage and extras in exchange for network rules.
Coverage from a former employer, union, TRICARE, or the VA, which may already fill some gaps; check how it works with Medicare.
Medicaid or a Medicare Savings Program, if your income and savings are limited, which can help pay premiums and cost sharing.

Also consider separate dental, vision, and hearing coverage if your plan doesn't include it, and plan ahead for long-term care, which Medicare generally doesn't cover.

The Medigap Timing Rule That Catches People Off Guard

Your Medigap open enrollment period happens only once: the six months starting the month you're 65 or older and enrolled in Part B. During it, insurers must sell you any Medigap plan at their standard rate. After it ends, in most states, they can ask about your health and decline you or charge more.

That matters after 70 in two situations: if you want to switch Medigap plans to lower your premium, or if you want to leave a Medicare Advantage plan and return to Original Medicare with a Medigap plan. Federal "guaranteed issue" rights still apply in specific cases, such as when a plan leaves your area or you're in a Medicare Advantage trial period. And some states give extra protections.

States with a Medigap "birthday rule" (as of mid-2026)

States	What it means
California, Delaware, Idaho, Illinois, Indiana, Kentucky, Louisiana, Maryland, Nevada, Oklahoma, Oregon, Utah, Virginia, West Virginia, Wyoming	Each year around your birthday, you get a short window, usually 30 to 63 days, to switch Medigap plans without health questions. Most states limit you to a plan with equal or lesser benefits, and some limit you to the same insurer. Illinois' rule applies only through age 75. New Mexico's rule is scheduled to start in 2027.

A few other states, including Connecticut and New York, let people buy Medigap year-round without health questions, and some others have their own protections. Check with your State Health Insurance Assistance Program (SHIP) for the rules where you live.

Mobility Equipment: Power Chairs, Scooters, and Walkers

After 70, many people start needing help getting around at home. Medicare Part B covers walkers, wheelchairs, scooters, and power chairs as durable medical equipment when your doctor documents that you need them for daily tasks inside your home.

There's no separate Medicare application. Coverage starts with a face-to-face exam and a written order from your doctor, then a Medicare-enrolled supplier.
Medicare covers the simplest device that meets your need, so a walker or manual wheelchair may come before a scooter or power chair.
Costs: you typically pay 20% of the Medicare-approved amount after the Part B deductible. Medicare Advantage plans may require prior authorization and in-network suppliers.
Be wary of ads or callers promising a "free" power chair or scooter, and never give your Medicare number to an unsolicited caller.

For the steps, see how to get a power chair through Medicare.

Medicare Services for Seniors You May Be Missing

Yearly Wellness visit: a free planning visit that can include a review of your medications, a fall-risk check, and a cognitive assessment.
Preventive screenings and vaccines: including flu, COVID-19, pneumonia, and shingles vaccines (shingles through Part D), plus bone density and other screenings based on your risk.
Skilled nursing and rehab: Original Medicare covers up to 100 days in a skilled nursing facility after a qualifying hospital stay of at least three days as an inpatient, with daily coinsurance after day 20. Being "under observation" doesn't count toward those three days, so ask about your status.
Home health care: covered when you're homebound and need skilled care.
Hospice care: covered for people with a terminal illness who choose comfort care.

Your Yearly Medicare Checkup

You don't need to switch plans every year, but a short review each fall protects you. The Annual Notice of Change your plan sends by September 30 lists what's changing for next year.

When	What you can do
By September 30	Read your Annual Notice of Change.
October 15 to December 7	Open Enrollment: join, switch, or drop a Medicare Advantage or Part D plan, or return to Original Medicare. Changes start January 1.
January 1 to March 31	If you're in Medicare Advantage, switch to another Medicare Advantage plan once, or return to Original Medicare.
Around your birthday	If your state has a birthday rule, consider comparing Medigap premiums.
After a life change	Moving, losing other coverage, or entering a nursing home can open a Special Enrollment Period.

Questions to ask yourself each fall:

Are all my doctors and hospitals still covered next year?
Are my prescriptions still on the formulary, and on the same tier?
Have my premiums, copays, or out-of-pocket limit changed?
Did I run into prior authorization or customer service problems this year?
If I wanted to change paths later, would that door still be open?

Often the answer is that your plan still fits, and that's a good outcome. For a deeper look at choices at this stage, see our guide to Medicare plans for seniors over 70, and if you need a new doctor, how to find a doctor who accepts Medicare.

How to Speak to a Medicare Representative

Medicare itself: call 1-800-MEDICARE (1-800-633-4227), available 24 hours a day, 7 days a week. TTY users can call 1-877-486-2048.
Free, unbiased counseling: your State Health Insurance Assistance Program (SHIP) offers one-on-one help comparing plans at no cost.
Social Security: handles Part A and Part B enrollment, premiums, and IRMAA appeals.
Licensed insurance agents and brokers: can help you compare and enroll in private plans, but they're paid by insurers and may not offer every plan in your area.

Be cautious with unexpected calls or texts from people who say they're "from Medicare." Medicare won't call you to sell a plan or ask for your Medicare number.

The Bottom Line

Medicare after 70 is less about learning something new and more about protecting what you have. Keep your coverage aligned with how you actually use care, know your Part B and Medigap timing rules, watch how income affects your premiums, and use the Medicare services for seniors that are already covered. A short review each fall keeps your options open for the years ahead.

This article is general information and isn't affiliated with Medicare, Social Security, or any insurance company, and it isn't a recommendation of any plan. Amounts shown are for 2026. Confirm details with Medicare.gov, 1-800-MEDICARE, or your State Health Insurance Assistance Program.