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Medicare Part D Disclosures due by March 1, 2025 for Calendar Year Plans

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Each year, group health plan sponsors are required to complete an online disclosure form with the Centers for Medicare & Medicaid Services (CMS), indicating whether the plan’s prescription drug coverage is creditable or non-creditable. This disclosure requirement applies when an employer-sponsored group health plan provides prescription drug coverage to individuals who are eligible for coverage under Medicare Part D.


CMS Disclosure Deadline

The plan sponsor must complete the online disclosure within 60 days after the beginning of the plan year. For calendar year health plans, the deadline for the annual online disclosure is March 1, 2025.


In addition to the annual disclosure requirement, the disclosure to CMS must be made whenever any change occurs that affects whether the coverage is creditable. More specifically, within 30 days after any change in the plan’s creditable coverage status or after the termination of a plan’s prescription drug coverage.


Online Disclosure Method

Plan sponsors are required to use the online disclosure form on the CMS creditable coverage website. This is the sole method for compliance with the disclosure requirement unless the entity does not have internet access.


The disclosure form lists the required data fields that must be completed in order to generate the disclosure notice to CMS, such as types of coverage, number of options offered, creditable coverage status, period covered by the disclosure notice, number of Part D-eligible individuals covered, date the creditable coverage disclosure notice is provided to Part D-eligible individuals, and change in creditable coverage status.

Important Dates

March 1, 2025 The deadline for sponsors of calendar year plans to complete an online disclosure form with CMS.


Oct. 15, 2025 Group health plan sponsors must provide creditable coverage disclosures to Medicare-eligible individuals before this date.


Action Steps

To determine whether the CMS reporting requirement applies, employers should verify whether their group health plans cover any Medicare-eligible individuals (including active employees, disabled employees, COBRA participants, retirees, and their covered spouses and dependents) at the start of each plan year.


Please reach out to your Cottingham & Butler team member for guidance on how to complete the disclosure for your plan.

CMS has also provided instructions on how to complete the form.  For additional information, please visit CMS’ creditable coverage website, which includes links to the online disclosure form and related instructions.

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