With additional benefits and typically lower monthly premium costs, Medicare Advantage (MA) Plans can be a great value compared to Original Medicare. Despite employing managed care cost-containment protocols that some consumers dislike, more and more Medicare eligible seniors are shifting to the better value MA plans offer. In just over four years, from October 2016 through January 2021, the market share of MA plans in the U.S. has grown from under 31% of Medicare eligible Americans to over 41%.
The growing national popularity of MA plans is also found in the five-state Great Lakes region of the U.S., where MA plan enrollment has grown from a 28.9% share of the Medicare eligible market in October 2016 to over 41% as of January 2021. Here is a state-by-state look at how Medicare Advantage market share in the Great Lakes region has expanded from October 2016 to January 2021:
 |
| Medicare Advantage Market Share in the Great Lakes Region |
| Medicare Eligible (1) | MA Enrollment (1) | % MA Market Share | ||||||
|---|---|---|---|---|---|---|---|---|
| State | Jan-21 | Oct-16 | Jan-21 | Oct-16 | Jan-21 | Oct-16 | ||
| IL | 2,277.1 | 2,122.0 | 668.6 | 412.5 | 29.4% | 19.4% | ||
| IN | 1,287.5 | 1,182.1 | 505.1 | 295.3 | 39.2% | 25.0% | ||
| MI | 2,111.9 | 1,950.1 | 1,031.9 | 638.0 | 48.9% | 32.7% | ||
| OH | 2,387.0 | 2,211.7 | 1,069.9 | 754.1 | 44.8% | 34.1% | ||
| WI | 1,208.9 | 1,087.4 | 538.6 | 369.4 | 44.6% | 34.0% | ||
| Region | 9,272.2 | 8,553.3 | 3,814.1 | 2,469.4 | 41.1% | 28.9% | ||
| Total (2) | 62,741.5 | 56,888.7 | 25,936.7 | 17,489.5 | 41.3% | 30.7% | ||
