Medicare 2026

How Meridian residents can avoid Medicare Part B and D fees

MERIDIAN, Idaho — For most people turning 65 in the Treasure Valley, Medicare feels like a maze of dates. Miss the wrong one, and you could owe a higher premium every single month — for the rest of your life. That is the reality of the late-enrollment penalties for Part B (medical insurance) and Part D (prescription drug coverage), and it is one of the most expensive mistakes new beneficiaries make.

The good news: these penalties are almost entirely avoidable if you know the rules.

Why these penalties exist

Medicare is insurance, and insurance works only when healthy people join along with those who need care right away. To keep the system stable, Congress built in penalties for people who could have signed up but waited. The rules are set by the Centers for Medicare & Medicaid Services (CMS) and apply the same way in Meridian as they do anywhere else in the country.

The tricky part is that the penalties are permanent. Unlike a late fee on a bill, they do not go away after you catch up. They are added to your monthly premium for as long as you have that coverage.

The Part B penalty, in plain English

Part B covers doctor visits, outpatient care, and many preventive services. If you don't sign up when you're first eligible — and you don't have other coverage that counts, like an employer group health plan based on current work — your monthly Part B premium can rise by 10% for each full 12 months you could have had Part B but didn't.

Two examples of how it adds up:

• Delay 14 months → 10% penalty added to your premium.
• Delay 40 months → 30% penalty added.

That extra amount is baked into what you pay every month, generally for the rest of your life.

There is one important exception. If you (or your spouse) are still working and covered by an employer plan from a company with 20 or more employees, you can usually delay Part B without a penalty and sign up later during a Special Enrollment Period. COBRA and retiree coverage do not count as active employer coverage for this purpose — a detail that trips up a lot of newly retired workers.

The Part D penalty, in plain English

Part D covers prescription drugs. The penalty here is smaller per month but works the same way: it sticks around.

The formula is 1% of the "national base beneficiary premium" for every full month you went without creditable drug coverage after your Initial Enrollment Period ended. "Creditable" means the coverage is expected to pay, on average, at least as much as standard Part D. Employer, union, VA, and TRICARE drug coverage often qualifies — but you should get a written notice from the plan each year confirming it.

Skip drug coverage for two years without a good reason, and you'll pay roughly 24% extra on your Part D premium every month once you finally enroll.

Your key windows to remember

• Initial Enrollment Period (IEP): The 7 months around your 65th birthday. This is the cleanest way to avoid any penalty.
• General Enrollment Period: January 1 – March 31 each year, for people who missed their IEP and don't qualify for a Special Enrollment Period.
• Special Enrollment Period (SEP): Usually up to 8 months after employer coverage ends, if you delayed because you were still working.
• Annual Enrollment Period: October 15 – December 7, for changing Medicare Advantage or Part D coverage.
• Medicare Advantage Open Enrollment: January 1 – March 31, for people already in an Advantage plan.

What 2027 looks like for drug coverage

Even if you enroll on time, it helps to know the ground rules. The Part D maximum deductible is $615 in 2026 and $700 in 2027, and the annual out-of-pocket cap on covered prescription drugs is $2,100 in 2026 and $2,400 in 2027. The old "donut hole" coverage gap has been eliminated since 2025, so Part D now has three phases instead of four. Medicare also offers the Medicare Prescription Payment Plan, an optional program that spreads your drug costs into level monthly payments instead of big pharmacy-counter bills.

Higher earners should also know about IRMAA — an income-related surcharge that starts above $109,000 in income for a single filer in 2026 and applies to both Part B and Part D premiums.

Local context for Meridian

Meridian sits in Ada County, where Medicare Advantage and stand-alone Part D options are set at the county level by CMS. That means the menu of plans available to you is determined by where you live, not by the city name on your mail. When you compare coverage on Medicare's Plan Finder, use your ZIP code and check that Ada County is listed.

If you want a real person to walk you through it, Idaho's SHIBA program (the state's version of the federal SHIP) provides free, unbiased counseling — they do not sell insurance.