The cities with the most competitive Medicare Advantage markets | 2023

The AMA’s annual “Competition in Health Insurance” report, published in December, found that 71% of metropolitan areas have “highly concentrated” Medicare Advantage markets. In 90% of metropolitan areas, one payer has at least a 30% MA market share. In 31% of markets, one insurer had a share of 50% or more.

These are the metro areas where the largest Medicare Advantage payer controls less than 30 percent of the market:

Canton-Massillon, Ohio
UnitedHealth Group: 21% market share

Birmingham-Hoover, Ala.
UnitedHealth Group: 24% market share

Bangor, Maine
Martin’s Point: 24% market share

Akron, Ohio:
UnitedHealth Group 24% market share

Glens Falls, N.Y.
Humana: 24% market share

Springfield, Mass.
Commonwealth Care Alliance: 25% market share

Worcester, Mass.-Conn.
Point32Health: 25% market share

Baltimore-Columbia-Towson, Md.
Kaiser: 26% market share

Yuma, Ariz.
Centene: 26% market share

Homosassa Springs, Fla.
Humana: 26% market share

Kokomo, Ind.
UnitedHealth Group: 26% market share

Cincinnati, Ohio-Ky.-Ind.
Humana: 26% market share

Cleveland-Elyria, Ohio
UnitedHealth Group: 26% market share

Binghamton, N.Y.
Excellus BCBS: 26% market share

Allentown-Bethlehem-Easton, Pa.-N.J.
Aetna: 26% market share

Memphis, Tenn.-Miss.-Ark.
Humana: 26% market share

Minneapolis-St. Paul-Bloomington, Minn.-Wis.
UCare: 27% market share

New York-Newark-Jersey City, N.Y.-N.J.-Pa.
UnitedHealth Group: 27% market share

Anniston-Oxford, Ala.
Viva Health: 27% market share

Clarksville, Tenn.-Ky.
Humana: 27% market share

Wheeling, W.V.-Ohio
Humana: 27% market share

Santa Fe, N.M.
UnitedHealth Group: 28% market share

Michigan City-La Porte, Ind.
Humana: 28% market share

Elmira, N.Y.
Excellus BCBS: 28% market share

Janesville-Beloit, Wis.
Aetna: 28% market share

Mansfield, Ohio
Aetna: 28% market share

Philadelphia-Camden-Wilmington, Pa.-N.J.-Del.-Md.
Aetna: 28% market share

Reading, Pa.
Aetna: 28% market share

Atlanta-Sandy Springs-Alpharetta, Ga.
Humana: 29% market share

Columbus, Ohio
Aetna: 29% market share

Youngstown-Warren-Boardman, Ohio-Pa.
Aetna: 29% market share

Portland-Vancouver-Hillsboro, Ore.-Wash.
Kaiser: 29% market share

Salem, Ore.
UnitedHealth Group: 29% market share

East Stroudsburg, Pa.
Aetna: 29% market share