The group published its annual “Competition in Health Insurance” report in December. According to the organization, 71% of metropolitan areas have “highly concentrated” markets, meaning one payer controls more than 30% of the Medicare Advantage market.
UnitedHealthcare is the largest Medicare Advantage provider. Some of the cities where it has its largest overall market share have a low share of Medicare beneficiaries opting for Medicare Advantage. In Cheyenne and Casper, Wyo., fewer than 20% of Medicare eligibles were enrolled in the program in 2022, according to an analysis from Chartis.
Here are the cities where UnitedHealthcare had the largest market share in 2022:
1. Cheyenne, Wyo.: 87%
2. Casper, Wyo.: 86%
3. Burlington, Vt.: 75%
4. Logan, Utah: 74%
4. Jefferson City, Mo.: 74%
5. Wichita Falls, Texas: 71%
6. Waterloo-Cedar Falls, Iowa: 72%
7. St. Joseph, Mo.-Kan.: 71%
8. Columbia, Mo.: 70%
9. Milwaukee-Waukesha, Wis.: 68%
9. Las Cruces, N.M.: 68%
