Medicare 2026

Before You Blow Out 65 Candles, Read This Medicare Guide

Before You Blow Out 65 Candles, Read This Medicare Guide — plain-language Medicare information for Thousand Oaks, California.

THOUSAND OAKS, Calif. — Turning 65 comes with cake, cards, and a stack of Medicare mail that can feel overwhelming. But there's one date on that birthday timeline you really can't afford to overlook: the start of your Initial Enrollment Period, the seven-month window when most people first sign up for Medicare.

Miss it, and you could face lifelong late-enrollment penalties or a gap in coverage. Get it right, and you set yourself up for a smoother ride through the rest of your Medicare years.

What the Initial Enrollment Period actually is

The Initial Enrollment Period (IEP) is the first chance most people have to sign up for Medicare. It lasts seven months total, built around your 65th birthday:

• The three months before your birthday month
• Your birthday month
• The three months after your birthday month

For example, if you turn 65 in July, your IEP runs from April 1 through October 31. Signing up early — in those first three months — is usually the smart move, because your coverage can begin on the first day of your birthday month with no delay.

Do you need to enroll, or does it happen automatically?

It depends on what you're already receiving:

• If you're already collecting Social Security (or Railroad Retirement) benefits before 65, you'll typically be enrolled in Medicare Part A and Part B automatically. Your card should arrive in the mail about three months before your birthday.
• If you're not yet on Social Security, you need to sign up yourself. You can do that at ssa.gov, by calling Social Security, or by visiting a local office.

This is the piece a lot of people miss. If you delayed Social Security to grow your benefit, don't assume Medicare will show up on its own — it won't.

What about Part B if you're still working?

Many Thousand Oaks residents keep working past 65, often with employer health coverage. If your employer has 20 or more employees, you may be able to delay Part B without a penalty and pick it up later through a Special Enrollment Period.

But the rules get tricky with smaller employers, COBRA, and retiree plans — those generally do not count as coverage that lets you delay Part B safely. Before you turn down Part B, talk to your HR department and double-check with Medicare or your local SHIP counselor. Getting this wrong is one of the most common — and most expensive — Medicare mistakes.

The Part D piece people forget

Original Medicare (Parts A and B) doesn't cover most prescription drugs you pick up at the pharmacy. That's where Part D comes in. You can get drug coverage as a stand-alone Part D plan or bundled into a Medicare Advantage plan.

A few program-level facts to know:

• The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027. Once your out-of-pocket drug costs reach that amount, you pay nothing for covered drugs the rest of the year.
• The Part D maximum deductible is $615 in 2026 and $700 in 2027 (plans can set theirs lower).
• The old "donut hole" coverage gap was eliminated in 2025. Part D now has three phases instead of four.
• A new Medicare Prescription Payment Plan lets you spread your drug costs across the year in monthly installments instead of paying big amounts at the pharmacy counter.

If you skip Part D when you're first eligible and don't have other "creditable" drug coverage, you can be charged a late-enrollment penalty for as long as you have Part D — so don't put it off just because you're not taking medications yet.

Choosing between Original Medicare and Medicare Advantage

At 65, most people face a fork in the road:

• Original Medicare (Parts A and B), often paired with a stand-alone Part D drug plan and, if you choose, a Medigap (supplement) policy to help with out-of-pocket costs.
• Medicare Advantage (Part C), private plans that bundle Parts A, B, and usually D, sometimes with extras like dental or vision.

Thousand Oaks sits in Ventura County, and plan availability is set at the county level. That means the number of Medicare Advantage and Part D plans available to you depends on Ventura County's service area, not the city itself. You can see the current list, side by side, using the Plan Finder at medicare.gov.

A quick word on Star Ratings: Medicare rates plans on a 1-to-5 scale for quality and service. Ratings are useful context, but they're one factor among many — your doctors, your prescriptions, and your travel habits matter just as much.

A word on higher-income surcharges

If your income is above certain thresholds, you'll pay more for Part B and Part D through something called IRMAA (Income-Related Monthly Adjustment Amount). For 2026, IRMAA kicks in above $109,000 in income for a single filer (higher for joint filers). Social Security uses your tax return from two years earlier to decide.

If your income has dropped because of retirement or another life event, you can ask Social Security to reconsider.

Key dates to keep on the fridge

• Initial Enrollment Period: the 7 months around your 65th birthday.
• Annual Enrollment Period: October 15 – December 7, when anyone with Medicare can change Advantage or Part D plans.
• Medicare Advantage Open Enrollment: January 1 – March 31, a second chance for Advantage members to switch or drop back to Original Medicare.
• General Enrollment Period: January 1 – March 31, if you missed your IEP and don't qualify for a Special Enrollment Period.