Employers who provide prescription drug coverage to those who are or may become eligible for Medicare Part D, must notify both plan members and CMS on whether the coverage provided is deemed “creditable” or “non-creditable” per the Medicare Modernization Act (MMA) of 2003. Creditable coverage means that the government considers the employer’s prescription drug coverage as good as or better than the Medicare drug benefit. Often, insurance carriers provide notices that outline whether your plan(s) are creditable or not. Many of the prescription copay plans are creditable, but often the High Deductible Health Plans (HDHP) are not. Determinations are subject to change each year.