How Employer Health Benefits Work with Medicare or Medicaid

If you're eligible for both employer health benefits and Medicare or Medicaid, the rules can get tricky. But they're designed to prevent overlap and make sure you get the right coverage at the right time. At WellthCare, we treat this coordination as a chance to simplify your healthcare and save you and your employer money.

Understanding Medicare Coordination: Primary vs. Secondary Payer

The key principle is the Primary Payer and Secondary Payer system. Medicare pays first in some situations, while your employer plan pays first in others. Your employment status and company size decide which is which:

• If you're 65+ and work for an employer with 20+ employees: Your employer group health plan is the primary payer. Medicare is secondary. Your employer plan pays claims first, and Medicare may cover remaining costs, often including deductibles and co-pays.
• If you're 65+ and work for an employer with fewer than 20 employees: Medicare is the primary payer. Your employer plan pays second. In this case, your employer may offer a Medicare supplement or a group plan that works alongside Medicare Parts A and B.
• If you qualify for Medicare due to disability (under 65) and have coverage through current employment: Your employer plan is primary if it has 100+ employees. If it has fewer than 100, Medicare is primary.

Your employer's size determines who pays first.

Keep in mind: When you turn 65, you can enroll in Medicare Part A, which is premium-free for most people, and decide whether to add Part B. If you keep working with employer group health plan coverage, you can delay Part B without penalty. Enrolling late without that coverage costs 10% of the Part B premium for each 12-month period you waited. To enroll later through a Special Enrollment Period, ask your employer to complete form CMS-L564, which documents your group health plan coverage.

Employer Plans and Medicare Part D (Prescription Drugs)

Most employer plans include prescription drug coverage that's considered creditable, meaning it's at least as good as Medicare Part D. If you have such coverage, you can delay enrolling in Part D without penalty. Your employer notifies you each year whether your drug coverage is creditable. If it's not, enroll in Part D right away. The late enrollment penalty is 1% of the national base beneficiary premium for each month you went without creditable drug coverage, and the penalty kicks in once you've been without that coverage for 63 days in a row.

How WellthCare Coordinates with Medicare

WellthCare is designed to work alongside your existing health plan and Medicare. It's a supplement to those programs, not a replacement, and it adds preventive care, rewards, and retirement savings on top of the coverage you already have.

• Preventive care first: Use WellthCare's $0-co-pay preventive actions, like scans and labs, before filing claims with Medicare or your employer plan. That reduces your out-of-pocket costs.
• WellthCare Medicare™: When you turn 65, you can stay inside the WellthCare system instead of starting over. You keep your WellthCare Store dollars and retirement contributions, and your care continues without a break.
• Lower employer claim exposure: WellthCare Medicare™ keeps Medicare-eligible employees inside the WellthCare system, which reduces claim exposure for the employer plan. You keep integrated pharmacy support and medication reminders.
• Pharmacy savings: If you're on WellthCare, your prescriptions are managed through WellthCare Pharmacy™, with transparent pricing and no spread pricing, typically 20-40% below traditional pharmacy benefit managers.

Medicaid Coordination

Medicaid is a state-based program for low-income individuals, families, and people with disabilities. Coordination with employer-sponsored benefits follows similar logic, but with important differences:

• Payer of last resort: Medicaid is almost always the payer of last resort, so your employer plan, if you have one, pays first and Medicaid covers remaining costs.
• Dual eligibility: Some people qualify for both Medicare and Medicaid. They're known as dual eligibles. Medicare pays first, then Medicaid covers most or all of the remaining out-of-pocket costs.

Important: Medicaid eligibility is based on income and household size, not on whether you have other coverage. You can have employer insurance and still qualify for Medicaid if your income falls within your state's limits. When both apply, your employer plan generally pays first and Medicaid covers remaining costs. The affordability test that can block marketplace premium tax credits is separate and doesn't apply to Medicaid. Check with your state's Medicaid office before making changes.

When Employer Coverage Ends: Your Enrollment Windows

The rules above matter most when your job-based coverage stops. At that point, you have specific windows to enroll without penalty. For Part B, you get a Special Enrollment Period of eight months, starting the month after your employment or group health plan coverage ends, whichever comes first. For a Medicare Advantage plan or Part D drug coverage, the window is two full months after your employer or union coverage ends. Once you sign up for Part B at 65 or older, you also get a six-month Medigap Open Enrollment Period, when insurers must sell you a supplement plan regardless of your health history. Mark these dates early. Missing the Part B window means waiting for the General Enrollment Period and paying the late enrollment penalty.

Practical Steps for Employees

1. Know your employer's size. It determines which plan pays first.
2. Review your Medicare Part B enrollment timing, especially if you plan to work past 65. Enroll during your Special Enrollment Period to avoid the late enrollment penalty.
3. Ask for your employer's notice of creditable prescription drug coverage. It tells you whether you can delay Part D without penalty.
4. If you're turning 65, ask whether WellthCare Medicare™ is available through your employer so you can keep your WellthCare Store dollars and retirement contributions.
5. Stay in the ecosystem: If you move to Medicare, your WellthCare Store dollars and retirement contributions keep accumulating, and you get personalized reminders for medication and preventive care.

Employer Takeaway

Employers who get Medicare and Medicaid coordination right can lower claims over time. The WellthCare Readiness Index™ uses your employees' actual preventive care data to show when expanding to WellthCare Medicare™ makes financial sense. The result is lower premiums, better care, and more retirement savings for everyone.

At WellthCare, we believe healthcare should pay you back. That starts with coordinating your coverage correctly. If you're 65 or older, have a disability, or qualify for Medicaid, WellthCare helps you build long-term wealth through preventive health actions. WellthCare's plans of care are drafted by AI and reviewed by a nurse practitioner and a physician before you see them.