The Medicare Secondary Payer (MSP) rules are designed to shift costs from Medicare to other, primary payers such as employer group health plans. Understanding MSP status and how it’s determined is critical for employers to ensure compliance and optimal plan administration.
What is MSP?
Medicare Secondary Payer refers to situations where Medicare is not the primary insurance for an individual. In these cases, another entity, such as an employer’s group health plan, is responsible for paying medical claims first, with Medicare covering only secondary or remaining costs.
Determining MSP Status
Determining MSP status depends on a variety of factors, including the size of your workforce and the reasons for Medicare eligibility (age, disability, end-stage renal disease).
Here are some key guidelines:
- Small Employer Exception: If your company has fewer than 20 employees, your group health plan is generally secondary to Medicare.
- Large Employers: If your company has 20 or more employees, your group health plan is generally primary to Medicare. This holds true regardless of whether the employee, spouse, or family member is eligible for Medicare due to age, disability, or end-stage renal disease.
- Multi-Employer Plans: If your company participates in a multi-employer plan, and any single employer contributes to the plan on behalf of individuals who work or used to work for the employer and who are covered by the plan, the plan is primary to Medicare.
Annual MSP Status Updates
Some insurance carriers may ask employers to confirm or update their MSP status annually. This is to ensure the correct primary payer for all enrollees and maintain accurate coordination of benefits. As an employer, you are obligated to provide accurate information about your company’s MSP status when requested.
Why MSP Status Matters
Failing to accurately determine and report MSP status can result in significant penalties and increased plan costs. If Medicare mistakenly pays primary on claims that should have been paid by an employer’s plan, it will seek to recoup those payments from the employer or the insurer.
To ensure you’re maintaining compliance with MSP rules and correctly coordinating benefits, it’s important to review your MSP status regularly, particularly when your workforce size changes. If you’re unsure about your MSP status or the MSP rules, consider seeking guidance from a benefits compliance expert or legal counsel.
