If you are talking about being covered by group health insurance and also covered by Medicare then it will depend upon the size of the employer group you are working for. If your employer has less than 20 employees then Medicare is the primary payer (pays first) and the group health insurance pays in a secondary capacity. If your employer has more than 20+ employees then the group health insurance plan pays first and Medicare pays in a secondary capacity. This is the simplest and generally most common scenarios where this question comes up. However, there are numerous other situations a person may be in (eligible for Medicare and Medicaid, disabled, retired and still covered under a former employer's plan, etc.) where other primary vs. secondary payer rules come into play that are too numerous to go into here.
For more detailed information I would recommend that you go to Medicare.gov as they are an excellent resource for detailed information on the entire range of these issues.
.JPG){kind=avatar}
For more detailed information I would recommend that you go to Medicare.gov as they are an excellent resource for detailed information on the entire range of these issues.