Medicare 2026

Working past 65 in Murrieta? How to decide when Medicare fits with your job's plan

More people in Murrieta are staying on the job well past 65, and that raises a fair question: do you sign up for Medicare, stick with your employer's health plan, or carry both? The right answer depends on the size of the company you work for, the kind of coverage you already have, and a few deadlines that are easy to miss.

Medicare 2027Murrieta, CA

Murrieta is in Riverside County, where retirees and working-age Medicare beneficiaries have a wide field of coverage options. But before you compare any of them, it helps to understand how Medicare and job-based insurance are supposed to work together.

Who pays first depends on your employer's size

Medicare uses "coordination of benefits" rules to decide which insurer pays first when you have two plans. The dividing line is 20 employees.

If your employer (or your spouse's employer, if you're covered through them) has 20 or more employees, the group health plan is generally the primary payer. Medicare pays second on services the job plan covers.

If the employer has fewer than 20 employees, Medicare is usually primary. That's an important detail, because if you skip Medicare in that situation, the job plan may only pay the share it would have paid as the secondary insurer — leaving you with big bills.

If you're not sure which category your employer falls into, ask your HR or benefits office in writing.

Should you take Part A at 65?

For most people, yes. Part A (hospital insurance) is premium-free if you or your spouse paid Medicare taxes for at least 10 years. Enrolling doesn't cancel your job plan, and it can help cover hospital costs your employer plan doesn't.

One big exception: if you contribute to a Health Savings Account (HSA), you'll need to stop those contributions once any part of Medicare starts. That's true even for premium-free Part A. Many workers time their Medicare enrollment carefully to avoid tax issues with their HSA — talk to your benefits team before you enroll.

When to delay Part B

Part B (doctor and outpatient care) has a monthly premium, and higher earners pay more through IRMAA — surcharges that begin above $109,000 in income for a single filer in 2026. If your employer plan is creditable coverage (as good as Medicare), you can usually delay Part B without a late penalty.

When your job or the coverage ends, you get a Special Enrollment Period of 8 months to sign up for Part B. Don't wait until COBRA runs out — COBRA does not count as active employer coverage for this purpose, and waiting can trigger a lifetime late-enrollment penalty.

Ask your employer for a written notice confirming your coverage is creditable. Keep it in your Medicare file.

What about Part D drug coverage?

Employer plans usually include prescription drugs. If yours is considered creditable drug coverage, you can delay Part D without penalty. Your plan is required to send you a notice each year telling you whether it qualifies.

For 2026, Part D has a $2,100 out-of-pocket cap and a maximum deductible of $615. The old "donut hole" coverage gap was eliminated in 2025, so drug coverage now moves through three simpler phases. There's also an optional Medicare Prescription Payment Plan that lets you spread drug costs across the year in monthly amounts.

If your job plan's drug coverage isn't creditable, you'll want to enroll in Part D on time to avoid a permanent penalty.

Common Murrieta scenarios

• You work for a large hospital system or school district. The employer plan is likely primary. Many workers take premium-free Part A and delay Part B until retirement.
• You work at a small business with fewer than 20 employees. Medicare typically pays first. Enrolling in both Part A and Part B at 65 is usually the safer path.
• You're covered under your spouse's active employer plan. The same size rules apply, based on your spouse's employer.
• You have retiree coverage from a former employer. That's not active employment coverage. Medicare is usually primary, and you generally need to enroll on time.

Key dates to remember

Your Initial Enrollment Period runs for 7 months around your 65th birthday — the 3 months before, your birthday month, and the 3 months after.

If you delay because of employer coverage, your Special Enrollment Period gives you up to 8 months after the job or coverage ends to sign up for Part B without penalty.

Once you're on Medicare, the Annual Enrollment Period (Oct. 15 – Dec. 7) and the Medicare Advantage Open Enrollment Period (Jan. 1 – March 31) are when you can change your Medicare choices.