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 six-and-one-half years, from October 2016 through May 2023, the market share of MA plans in the U.S. has grown from under 31% of Medicare-eligible Americans to 48%.
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 48% as of May 2023. Here is a state-by-state look at how Medicare Advantage market share in the Great Lakes region has expanded from October 2016 to May 2023:
 |
Medicare Advantage Market Share in the Great Lakes Region |
| Medicare Eligible (1) | MA Enrollment (1) | % MA Market Share | ||||||
|---|---|---|---|---|---|---|---|---|
| Area | May-23 | Oct-16 | May-23 | Oct-16 | May-23 | Oct-16 | ||
| IL | 2,345.0 | 2,122.0 | 856.3 | 412.5 | 36.5% | 19.4% | ||
| IN | 1,335.1 | 1,182.1 | 628.6 | 295.3 | 47.1% | 25.0% | ||
| MI | 2,187.2 | 1,950.1 | 1,243.0 | 638.0 | 56.8% | 32.7% | ||
| OH | 2,465.5 | 2,211.7 | 1,264.4 | 754.1 | 51.3% | 34.1% | ||
| WI | 1,271.3 | 1,087.4 | 655.6 | 369.4 | 51.6% | 34.0% | ||
| Region | 9,604.2 | 8,553.3 | 4,647.9 | 2,469.4 | 48.4% | 28.9% | ||
| Total(2) | 65,390.9 | 56,888.7 | 31,362.0 | 17,489.5 | 48.0% | 30.7% | ||
