If your retiree plan has creditable coverage (meaning it is as good as or better than the standard Medicare Part D benefit), you do not need to enroll in a separate Medicare Part D prescription drug plan.
Your former employer or union decides which options are available, as well as how and when you enroll.
* The products and services described above are neither offered nor guaranteed under our contract with the Medicare program. In addition, they aren't subject to the Medicare appeals process. Any disputes regarding these products and services may be subject to the Humana grievance process.