2026 Newfront Medicare for Employers Guide

Medicare for Employers

Guide Topics

How do Employers Interact with Medicare?

Medicare for Employers Topics for Discussion:

  1. MSP: How the Medicare Secondary Payer rules affect employer-sponsored group health plans
  2. COBRA: How the COBRA rules interact with Medicare in complicated (and confusing!) ways
  3. Special Enrollment Periods: How to enroll in Medicare after loss of active employer coverage
  4. HSAs: How and when Medicare affects HSA eligibility— including potential Part A retroactive concerns

Medicare Secondary Payer Who Pays First (and More)

Employers Subject to MSP Rules

MSP Applicability Based on Employer Size and Type of Entitlement

Entitlement Based on Age (65+)

Entitlement Based on Disability

The MSP Basics

COBRA or Retiree Coverage

Prohibited Incentives: Can’t Encourage Medicare

Point Description
1 No Medicare or Medicare Supplement Reimbursement
2 No Coverage Designed to Supplement Medicare
3 No Special Opt-Out Credits for Age 65+ Employees

Section 111 MSP Reporting for GHPs

How Medicare and COBRA Interact for Retirees

COBRA and Medicare


COBRA Qualifying Event: Two Requirements

  1. Loss of coverage
  2. Caused by one of the COBRA triggering events

Medicare enrollment almost always does not cause loss of coverage.


Medicare Enrollment Periods

Medicare Initial Enrollment Period

Special Enrollment Period (SEP)


Medicare Part D

Notice of Creditable Coverage

Medicare and HSAs

HSAs and Reaching Age 65 (Medicare)


Medicare for Employers – Top Five Issues

  1. Medicare Secondary Payer (MSP): Must offer same benefits under same conditions to employees age 65+.
  2. COBRA: Coverage terminates upon enrollment in Medicare after electing COBRA.
  3. Special Enrollment Periods: Must enroll in Medicare within eight months to avoid penalties.
  4. Medicare Part D: Must provide a Notice of Creditable Coverage annually.
  5. HSAs and Age 65 (Medicare): Employees do not lose HSA eligibility until Medicare enrollment.