When Mr. Johannsen qualifies for the Part D Low-Income Subsidy (LIS, also called “Extra Help”), he gains a special enrollment right that lets him make additional changes to his Medicare Part D coverage compared with someone who does not have LIS.

Below is a clear breakdown of what that means for his ability to enroll or disenroll in a Part D plan.

1. Basic setup: where he is now

  • He already has Medicare Part A and Part B, so he is eligible for Medicare Part D.
  • Once he is found eligible for the Part D low‑income subsidy (LIS/Extra Help), Medicare rules treat him as a “low‑income subsidy eligible individual.”

These LIS rules give him extra flexibility in joining, switching, or leaving Part D plans.

2. How LIS affects his enrollment options

For LIS‑eligible beneficiaries, Medicare must ensure they are enrolled in a Part D plan, and they are allowed to choose their own plan and change it during special periods.

Key effects:

  1. Right to enroll in a Part D plan
    • If he is not already in a Part D plan when he gets LIS, he can enroll in one, and CMS also has authority to “facilitate” or auto‑enroll LIS‑eligible people into a plan so they do not go without drug coverage.
  1. Special Enrollment Period (SEP) to switch plans
    • LIS status gives him access to a special enrollment period that allows him to leave his current Part D plan and enroll in another qualifying Part D plan outside the usual fall Annual Enrollment Period.
 * In regulations, the LIS rules explicitly reference that a low‑income subsidy eligible individual can switch to another plan “during the special enrollment period provided under § 423.38.”
  1. Lower cost plan options
    • While not changing the number of times he can enroll by itself, LIS often pairs with automatic enrollment into a plan whose premium is at or below the regional low‑income benchmark, reducing or eliminating his Part D premium.

3. How LIS affects his disenrollment options

LIS does not force him to stay in any particular Part D plan. He keeps control over whether he wants Part D coverage and which plan he is in.

Important points:

  1. Right to decline Part D altogether
    • The regulation on LIS enrollment states that nothing “prevents a low income subsidy eligible individual from affirmatively declining enrollment in Part D.”
 * So even with LIS, he may decide he does not want Part D coverage and can decline it.
  1. Right to disenroll and switch plans using the SEP
    • The same regulation makes clear that an LIS‑eligible person can “disenroll” from the plan they are in and enroll in another Part D plan during the LIS special enrollment period.
 * Practically, this means LIS gives him **flexible opportunities to get out of a plan that doesn’t work for him** and move into a different Part D plan, rather than being locked in all year.
  1. Involuntary disenrollment rules still apply
    • General involuntary disenrollment rules (for all Part D enrollees) continue to apply, such as disenrollment for moving out of the service area, losing Part D eligibility, or plan termination.
 * LIS does not remove those basic conditions, but his extra SEP makes it easier to get into a new plan quickly if one of those events occurs.

4. Putting it together in plain terms

Story-style example:

Think of Mr. Johannsen as someone who already has hospital and medical coverage (Part A and B) but is now getting a special “Extra Help” card for his prescriptions.
That Extra Help card doesn’t just lower his costs; it also opens more doors:

  • If he’s not in a drug plan, he can join one.
  • If he’s in a plan he doesn’t like, he can leave it and choose another during his LIS special enrollment period.
  • If he decides he does not want drug coverage at all, he can decline or drop Part D entirely, even though he’s eligible for Extra Help.

So, gaining the Part D low‑income subsidy expands his ability to enroll in, switch, or disenroll from Part D plans using special enrollment rights, and he can still decline Part D coverage if he chooses.

Information gathered from public forums or data available on the internet and portrayed here.