Sebastian Frey( Seasoned Professional )

Seb Frey is a REALTOR® and founder of Team Sixty Plus, a curated network connecting older adults and their families with trusted professionals across California. With decades of experience helping homeowners 60+ navigate major life transitions—like downsizing, aging in place, or passing on a legacy—Seb brings deep market knowledge, a compassionate approach, and a commitment to simplifying complex decisions. When he’s not advising clients, he’s sharing expert insights on real estate, retirement strategies, and quality-of-life resources for the 60+ community.

If you have a standalone Medicare Part D drug plan, the letter that landed in your mailbox this fall might be the most expensive piece of paper you ignore all year. For 2027, a federal program that held down drug plan premiums is ending, the number of standalone plans is shrinking again, and some popular plans are raising premiums by $50 to more than $100 a month. Meanwhile, every one of the roughly 4 million people who paid a $0 premium for their drug plan in 2026 will pay something in 2027. The insurance companies are counting on one thing: that you won’t check, and your plan will quietly renew on January 1.

Here’s the good news. Switching Part D plans is one of the simplest money moves in all of retirement. It takes about an hour, there are no health questions, and for many people it saves hundreds of dollars a year, sometimes more than a thousand. Medicare Open Enrollment runs through December 7, 2026, and any change you make takes effect January 1, 2027. Here’s exactly what’s changing, how to compare plans the right way, and the mistakes that cost retirees the most.

What’s Changing With Part D in 2027

Part D has gone through more changes in the last few years than in the previous two decades combined. Some of them help you, and some of them will cost you if you’re not paying attention. These are the ones that matter most for 2027.

The out-of-pocket cap rises to $2,400

Thanks to the Inflation Reduction Act, Part D now has a hard ceiling on what you pay for covered drugs each year. In 2026 that cap is $2,100. In 2027 it rises to $2,400. Once your out-of-pocket spending on covered drugs reaches that amount, you pay nothing more for covered prescriptions for the rest of the year. Your monthly premium doesn’t count toward the cap, but your deductible, copays, and coinsurance do.

For people on expensive medications for cancer, multiple sclerosis, or rheumatoid arthritis, this cap is a game-changer. Before it existed, some retirees were paying $10,000 or more a year for a single drug.

The maximum deductible rises to $700

Plans can charge a deductible of up to $700 in 2027, up from $615 in 2026. Not every plan charges the full amount, and many plans don’t apply the deductible to cheaper generic drugs. But if you take brand-name medications, the deductible can mean a big bill in January and February before your plan starts paying its share.

The premium “cushion” is gone

For the last two years, the federal government ran a Part D Premium Stabilization Demonstration that gave extra money to standalone drug plans and capped how much their premiums could rise from one year to the next. According to a new analysis from KFF, CMS chose not to extend it for 2027. That has two big effects:

• No more $0 premium standalone drug plans for people who don’t qualify for low-income help. About 28% of standalone plan enrollees without that help paid nothing in 2026. All of them will pay a premium in 2027.
• No more limit on premium jumps. KFF found that people who stay in AARP Medicare Rx Preferred will see premiums rise by $50 or more a month in every state, and by more than $100 a month in four states. That’s an extra $600 to $1,200 a year for the exact same plan.

Not every plan is going up. CMS estimates the average standalone premium will rise only about $1, to roughly $36 a month, and some national plans are actually cutting premiums in certain states. That’s exactly the point: the plan you have may be getting much worse while another plan is getting much better.

Fewer plans to choose from

The average Medicare beneficiary will have 9 standalone drug plans to choose from in 2027, down from 11 in 2026. It’s the fourth straight year the number has dropped. Fewer choices mean there’s a real chance your current plan is changing more than you think, or leaving your area entirely.

Lower prices for 15 more drugs

Starting January 1, 2027, Medicare’s negotiated prices take effect for a second group of 15 drugs, including Ozempic, Wegovy, and Rybelsus, the inhalers Trelegy Ellipta and Breo Ellipta, the diabetes drugs Janumet and Tradjenta, and several cancer drugs. You can see the full list on CMS’s drug price negotiation page. Lower list prices can mean lower coinsurance for you, but how much you save still depends on how your plan places that drug on its formulary.

If you’re still deciding between Original Medicare with a standalone Part D plan and a Medicare Advantage plan that includes drug coverage, Medicare Advantage vs. Medigap: What It Really Costs Over 10 Years walks through the full 10-year cost of each path before you lock in your drug plan.

Why “Just Keep Your Plan” Is an Expensive Habit

Most retirees never switch drug plans. They picked one at 65, it worked fine, and they let it renew year after year. KFF has found that a large share of Part D enrollees don’t compare plans during Open Enrollment at all.

The problem is that your plan is not the same plan from one year to the next. Every fall, insurers can change:

• The monthly premium, sometimes dramatically.
• The deductible, and which drug tiers it applies to.
• The formulary, which is the list of drugs the plan covers. A drug you take can be dropped, moved to a more expensive tier, or put behind new rules.
• The copays and coinsurance for each tier.
• The pharmacy network, including which pharmacies get “preferred” pricing.
• Prior authorization and step therapy rules, which can require you to get approval or try a cheaper drug first.

Your medications may have changed too. Maybe your doctor added a new prescription this year, or switched you from a brand to a generic. A plan that was the best deal for the drugs you took in 2024 may be one of the worst deals for the drugs you take today.

Insurers know most people won’t look. That’s why the companies with the biggest premium increases are often the most popular, best-known names. Loyalty doesn’t get rewarded in Part D. Shopping does.

How to Compare Part D Plans the Right Way (Step by Step)

You don’t need to be a Medicare expert to do this well. You just need your list of medications and about an hour. Here’s the process.

Step 1: Read your Annual Notice of Change

Your plan was required to send you an Annual Notice of Change (ANOC) by September 30. It lists every change for 2027: premium, deductible, copays, and formulary changes. Look for three things right away: your new monthly premium, your new deductible, and whether any of your drugs moved tiers or were dropped. If the premium jumped or a drug disappeared, that’s your signal to shop.

Step 2: Make an exact list of your medications

Write down every prescription you take, including the exact name, the dose (for example, 20 mg), and how often you take it. Dose and form matter. A plan might cover a 20 mg tablet at one price and an extended-release version at a completely different price. Include drugs you take only part of the year, too.

Step 3: Use the Medicare Plan Finder

The Medicare Plan Finder on Medicare.gov is the single best tool for this job. Enter your ZIP code, your exact drugs and doses, and your preferred pharmacies. It then ranks every available plan by your estimated total yearly cost, which includes premiums plus what you’d pay for your specific drugs at your specific pharmacy.

Creating a free Medicare.gov account lets you save your drug list so you only have to enter it once, and you can come back next year and run the comparison again in minutes.

Step 4: Sort by total cost, not premium

This is where most people go wrong. The plan with the lowest premium is rarely the plan with the lowest total cost. Here’s a simplified example of how three plans might compare for someone taking three generic drugs and one brand-name drug:

This is a hypothetical example to show how the math works, not a quote. Your numbers will depend on your drugs, your pharmacy, and your ZIP code.

In this example, staying put costs $470 more than switching to Plan B. And the plan with the cheapest premium still costs more than Plan B, because its higher deductible and copays eat up the premium savings. Over 10 years of retirement, choosing the right plan each fall can easily add up to thousands of dollars.

Step 5: Check the fine print on your drugs

Before you pick a winner, click into the plan details and look at each of your medications. Check which tier each drug is on, whether it needs prior authorization or step therapy, and whether there are quantity limits. A plan that saves you $200 but requires your doctor to file paperwork every few months may not be worth the hassle.

Step 6: Check your pharmacy

Many plans have “preferred” pharmacies where your copays are much lower. If your plan’s preferred pharmacy is across town and you’re not willing to switch, choose a plan that gives you good pricing where you actually shop. Also look at mail-order pricing. For maintenance drugs you take every day, a 90-day mail-order supply is often the cheapest option.

Step 7: Enroll before December 7

Once you’ve found the right plan, you can enroll directly through the Plan Finder, by calling 1-800-MEDICARE, or by contacting the plan. When you enroll in a new standalone Part D plan, you’re automatically disenrolled from your old one. You don’t need to cancel it yourself. Your new coverage starts January 1, 2027.

Seven More Ways to Cut Your Prescription Costs

Choosing the right plan is the biggest lever, but it’s not the only one. These moves can lower your drug costs even more.

1. Ask your doctor about generics and alternatives. Many brand-name drugs have a generic or a similar drug on a lower tier. Bring your plan’s formulary to your next appointment and ask, “Is there a lower-cost option that would work just as well?”
2. Switch to 90-day supplies. Many plans charge less per pill for a 90-day supply, especially through mail order or preferred pharmacies.
3. Use the Medicare Prescription Payment Plan if January bills are a problem. This free option lets you spread your out-of-pocket drug costs into monthly payments across the year instead of paying large amounts up front. It doesn’t lower your total cost, but it can make a big difference to your monthly cash flow if you hit the deductible or the cap early in the year. Ask your plan how to sign up.
4. Remember the insulin cap. Covered insulin costs no more than $35 for a month’s supply under Part D, and the deductible doesn’t apply. If you’re paying more than that, call your plan.
5. Compare cash prices for cheap generics. For some inexpensive generic drugs, the cash price at a discount pharmacy or with a discount card can be lower than your plan copay. Just remember that drugs bought outside your plan usually don’t count toward your deductible or your $2,400 cap.
6. Look into patient assistance programs. Many drug manufacturers and nonprofit foundations help people with high-cost medications. Your pharmacist or doctor’s office can often point you to them.
7. Check your state’s programs. Some states run their own pharmaceutical assistance programs that help pay Part D premiums or copays for older residents. Your local SHIP counselor can tell you what’s available where you live.

Don’t Miss Extra Help if Your Income Is Limited

If money is tight, the most valuable thing you can do may be to apply for Extra Help, also called the Part D Low-Income Subsidy. It’s a federal program that can pay most or all of your Part D premium and deductible and cut your copays to just a few dollars per prescription.

In 2026, people with Extra Help pay no more than $5.10 for a generic and $12.65 for a brand-name drug, and many pay less. People with Extra Help can also still choose from plans with $0 premiums in 2027, even though those plans have disappeared for everyone else.

You may qualify if your income and savings are below certain limits. For 2026, those limits are about $23,940 a year for an individual ($1,995 a month) and $32,460 for a married couple ($2,705 a month), with resources of up to about $18,090 for an individual and $36,100 for a couple. Your home, one car, and most personal belongings don’t count as resources. The limits are adjusted each year.

Many people who qualify never apply because they assume they earn too much. If you’re anywhere close, it’s worth checking. You can apply online through Social Security’s Extra Help page or by calling Social Security. If you already have Medicaid, a Medicare Savings Program, or SSI, you qualify automatically.

If you’re not sure how Medicare and Medicaid fit together or which programs you might be eligible for, Medicare vs. Medicaid: What’s the Difference? explains who qualifies for each and how they work side by side.

Five Part D Mistakes That Cost Retirees the Most

1. Picking a plan based on the premium alone

As the example above shows, a low premium can hide a high deductible and expensive copays. Always compare the estimated total yearly cost for your drugs.

2. Going without drug coverage because you’re healthy

If you go without Part D or other “creditable” drug coverage for 63 days or more after you first become eligible, you’ll owe a late enrollment penalty when you do sign up. It’s added to your premium every month for as long as you have Part D, which for most people means for life. Even if you take no medications today, a low-cost plan protects you from both the penalty and a surprise diagnosis.

3. Ignoring the formulary until you’re at the pharmacy counter

Finding out in January that your plan dropped your drug is stressful and expensive. Check the formulary for every medication before you enroll, and again every fall.

4. Forgetting about IRMAA

If your income is higher, you’ll pay an extra monthly charge for Part D, called IRMAA, on top of your plan’s premium. It’s based on your tax return from two years earlier, so a big Roth conversion, home sale, or large IRA withdrawal can raise your drug coverage costs down the road. If your income has dropped because you retired, you can ask Social Security to recalculate it.

5. Trusting a cold caller

Medicare and legitimate plans won’t call you out of the blue to sell you a drug plan or ask for your Medicare number. If someone does, hang up. Free, unbiased help is always available from your State Health Insurance Assistance Program (SHIP), whose counselors don’t sell anything.

Every dollar you save on prescriptions is a dollar that stays in your retirement budget, and How to Stretch Your Retirement Income Without Sacrifice shares more ways to free up monthly cash without giving up the things you enjoy.

Your Prescription Savings Checklist Before December 7

• Find your Annual Notice of Change and check your 2027 premium, deductible, and drug coverage.
• Write down every medication, with the exact name, dose, and how often you take it.
• Run your list through the Medicare Plan Finder and sort plans by estimated total yearly cost.
• Check each drug’s tier, prior authorization, and quantity limits in your top choices.
• Confirm your pharmacy’s pricing, and compare mail-order prices for daily medications.
• Check whether you might qualify for Extra Help, and apply if you’re close.
• Enroll in your new plan before December 7 so coverage starts January 1.

One Hour Now, Hundreds Back in Your Pocket

Part D is one of the few places in retirement where a little homework pays off almost immediately. With premium protections ending, $0 plans disappearing, and some popular plans raising prices by $600 to $1,200 a year, doing nothing in 2027 could be one of the most expensive choices you make. Spending an hour with your drug list and the Medicare Plan Finder can keep hundreds of dollars, and sometimes more than a thousand, where it belongs: in your retirement budget instead of an insurance company’s.

Don’t wait for the last week of Open Enrollment, when phone lines are jammed and websites are slow. Pull out your Annual Notice of Change this week, run the numbers, and make your switch before December 7. Then spend the money you save on something that actually makes life after 60 better.

This article is for educational purposes and isn’t personalized insurance or financial advice. Medicare costs and rules change every year; confirm current figures at Medicare.gov or with a licensed, unbiased advisor before you decide.

Sebastian Frey Seasoned Professional

Seb Frey is a REALTOR® and founder of Team Sixty Plus, a curated network connecting older adults and their families with trusted professionals across California. With decades of experience helping homeowners 60+ navigate major life transitions—like downsizing, aging in place, or passing on a legacy—Seb brings deep market knowledge, a compassionate approach, and a commitment to simplifying complex decisions. When he's not advising clients, he's sharing expert insights on real estate, retirement strategies, and quality-of-life resources for the 60+ community.

See Full Bio