Medicare is a complex set of laws signed on July 30, 1965, by President Lyndon B.
Johnson, providing insurance coverage for people over sixty-five, those under sixty-five with
certain disabilities, people with Amyotrophic Lateral Sclerosis (Lou Gerhrig disease), and
anyone with end-stage renal disease. I am going to walk you through the history of this
complexity step by step. In the next article, I’ll discuss more details on available coverage,
enrollment options and requirements, premiums and penalties, and additional programs like
Medicaid and Extra Help.
Original Medicare provided only Part A (hospitalization, skilled nursing facilities, & blood)
and Part B (doctor services, outpatient hospital service, plus most other medical services that
Part A does not cover). The Omnibus Reconciliation Act of 1980 expanded home health
services and brought Medigap (Medicare supplement insurance), under federal oversight. In
1982, hospice was added to Part A.
In 2003, the Medicare Modernization Act (MMA-2003) signed by President George W. Bush, added Part C, which allowed private insurance companies to offer Medicare Advantage
plans, if approved by CMS (Center for Medicare and Medicaid Services), that combined Parts
A and B, and added prescription drug coverage for most plans. The MMA-2003 also specified
that as of January 1, 2006, all Medicare recipients were required to have credible prescription
drug coverage, then named Part D.
Therefore, as of 2006, all Medicare recipients are required to have Medicare Parts A, B,
and D, or credible insurance and prescription drug coverage as good as the standard
Medicare plan. Note that prescription drug discount or medical discount plans are not
considered credible coverage. Credible insurance can be employer insurance plans, Veteran
coverage like Tricare or VA benefits, or government or private pension plan insurance, or a
Part C Medicare Advantage plan. Tricare for Life and ChampVA also require enrollment in
Part B. Note that COBRA is not considered credible coverage. Also note that MMA-2003
specifies penalties for not enrolling in Part B or Part D when eligible, unless the individual has
other credible coverage.
The “Your Medicare Coverage Choices” diagram displays our current choices for Medicare
coverage. If we have other credible medical and prescription drug coverage, we may only
have Medicare Part A. Otherwise:
1. We can have original Medicare Parts A and B, to which we add a Part D plan (unless we
have other credible prescription drug coverage).
2. We can have original Medicare Parts A and B, plus Part D (unless we have other credible
prescription drug coverage) and add a Medigap policy.
3. We can have a Medicare Advantage plan (MAPD) with Part D included.
4. If we have other credible prescription drug coverage, we can have a Medicare Advantage
plan (MA) without prescription drug coverage. Those without prescription drug coverage are
often called “veteran plans,” as the people who enroll in them are most often veterans who
get their prescriptions from the Veterans Administration.
Diagram Reference:
Centers for Medicare and Medicaid Services, September 2016, Medicare and You: The official U.S. government Medicare handbook, U.S. Department of Health and Human Services.