The report, published Nov. 19, examines competition in commercial, individual and Medicare Advantage markets.
In 91% of Medicare Advantage markets, one insurer controlled more than 30% of the market. In just 4% of markets, one insurer had a more than 70% market share.
Here are the least competitive Medicare Advantage markets:
Casper, Wyo.
UnitedHealth Group: 92%
Cheyenne, Wyo.
UnitedHealth Group: 86%
Napa, Calif.
Kaiser Permanente: 82%
California-Lexington Park, Md.
UnitedHealth Group: 85%
Vallejo, Calif.
Kaiser Permanente: 82%
Dubuque, Iowa
Medical Associates: 79%
Jefferson City, Mo.
UnitedHealth Group: 77%
Santa Rosa-Petaluma, Calif.
Kaiser Permantente: 76%
Salinas, Calif.
Montage Health: 75%
Wenatchee, Wash.
Carle Health: 74%
Chico, Calif.
Elevance Health: 73%
Columbia, Mo.
UnitedHealth Group: 72%
St. Joseph Mo.-Kan.
UnitedHealth Group: 72%
Great Falls, Mont.
Humana: 71%
Wilmington, N.C.
Humana: 71%
Logan, Utah-Idaho
UnitedHealth Group: 70%
Read the full report here.
