
Oct. 15 Deadline for Medicare Part D Coverage Notices
Employers must notify Medicare-eligible policyholders if their prescription drug coverage is credible or not.
2025 brought significant change to the determination of credibility.
Here's the math:
17 (17% penalty) × $34.70 (Base beneficiary premium) = $5.90
$5.90 = Mrs. Martinez's monthly late enrollment penalty for 2026
Who Must Comply
The disclosure requirements apply generally to employers sponsoring group health plans that offer prescription drug coverage to Medicare-eligible individuals.
Model notices/templates
These model notices may be used to satisfy this requirement, issued by the Centers for Medicare & Medicaid Services.
Medicare Part D – Creditable Coverage Disclosure Notice Template - [View]
Non-Creditable Coverage Disclosure Notice Template - [View]
Information Required
Notifies Medicare-eligible individuals whether the plan's prescription drug coverage is creditable coverage, meaning the coverage is expected to pay, on average, as much as the standard Medicare prescription drug coverage.
Note: Individuals who do not maintain creditable coverage for 63 days or longer following their initial enrollment period for Medicare Part D may be required to pay a late enrollment penalty. Accordingly, this information is essential to the decision to enroll in a Medicare Part D prescription drug plan.
Who it must be provided to
Medicare-eligible active employees and their dependents
Medicare-eligible COBRA individuals and their dependents
Medicare-eligible disabled individuals covered under the prescription drug plan
Any retirees and their dependents
Who it must be provided by
Employers who sponsor group health plans that offer prescription drug coverage to Medicare-eligible individuals.
When it is Due
Prior to the annual enrollment period for Medicare Part D that begins on Oct. 15th
Prior to an individual's initial enrollment period for Medicare Part D
Prior to the effective date of enrolling in the employer's prescription drug plan and upon any change that affects whether the coverage is credible
Upon request by the individual
Online disclosure to the Centers for Medicare & Medicaid Services is also required annually, no later than 60 days from the beginning of a plan year, within 30 days after termination of a prescription drug plan, or within 30 days after any change in creditable coverage status.
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