I’m retiring and losing my health insurance through work. When do I need to enroll in Medicare in Louisiana?
Answered by 4 licensed agents
Employer with fewer than 20 employees: Medicare is already primary at 65, so enroll right at 65 rather than waiting for retirement — the group plan likely won't cover much without Medicare in place.
Best timing: File for Part B a month or two before coverage ends, so Medicare starts the day after, with no gap. You'll need Form CMS-L564 (employer completes) plus CMS-40B, filed with Social Security.
Watch for: COBRA doesn't count as coverage that delays Medicare — enrolling in COBRA instead is a common costly mistake.
Answered by Caroline Johnson on September 16, 2026
Agent Licensed in TX
**12 weeks before:** Confirm the exact date your employer medical and prescription coverage ends.
If you already have Part A and delayed Part B, submit:
* **CMS-40B** — Application for Medicare Part B
* **CMS-L564** — Employer verification showing you had coverage through current employment
If you delayed both Part A and Part B, apply for both instead of using the Part B-only process.
Also determine the Medicare effective date you need. This is especially important if your employer coverage ends in the middle of a month, because Medicare Advantage and Part D plans generally begin on the **first of the month**.
**10 weeks before:** Confirm Social Security received everything and that no additional information or employer verification is needed.
**8 weeks before:** Confirm your **Medicare Beneficiary Identifier (MBI)** and your Part A and Part B effective dates. If you already had Part A, you should already have an MBI; make sure Part B is showing with the correct effective date.
Once the MBI and Medicare dates are confirmed, submit the coverage that will replace your employer plan — either a **Medicare Advantage plan**, or a **Medicare Supplement and Part D prescription plan**.
**6 weeks before:** Confirm that the new coverage has been accepted and that all effective dates line up correctly. At this point, the Medicare transition should be fully in place.
The goal is to have everything completed **at least six weeks before your employer coverage ends**.
This can sometimes be done in less time. The 12-week timeline is recommended to allow for Social Security processing, employer verification, obtaining or confirming the MBI, plan enrollment, and time to correct a problem without rushing.
Answered by Jeremy Harkins on September 16, 2026
Broker Licensed in TN, AR, CA & 5 other states
Answered by Noelle Laderer on September 11, 2026
Broker Licensed in LA, AL, AR & MS
Answered by Debra Hartman on September 16, 2026
Broker Licensed in WI & MN
Tags: Advice for Seniors Eligibility Retirement The Medicare System
Agents: Share Your Expertise
Have insights or experiences related to this topic? Help others by sharing your knowledge and answering this question.
Seniors: Ask a Question of Your Own
Questions are generally answered within 1 to 3 business days. Receive valuable perspectives from multiple licensed agents and brokers.
Ask a Question