BlueCross BlueShield of Tennessee in Tennessee: 211,033 Medicare Advantage members, 28.1% share, 1st of 12.
BlueCross BlueShield of Tennessee added 14,368 members (+7.3%) from Nov 2025 to Oct 2026 and stepped +3.9% at the 2026 election period against the market's +0.7%. It sells in 95 of Tennessee’s 95 counties with visible members and leads 44, UnitedHealth just behind at 28.1%.
BlueCross BlueShield of Tennessee's twelve months in Tennessee
Visible members each month, Nov 2025 to Oct 2026. The December-to-January step is the election period. The market line for the state is on the Tennessee page.
Where BlueCross BlueShield of Tennessee's Tennessee members are
The carrier’s five largest counties by visible members, with its share of each county’s visible Medicare Advantage members. It sells in 95 counties and leads 44 of them.
| County | BlueCross BlueShield of Tennessee members | Share of county | County visible members | County leader |
|---|---|---|---|---|
| Hamilton | 21,902 | 50.5% | 43,361 | BlueCross BlueShield of Tennessee |
| Shelby | 13,055 | 17.1% | 76,417 | Humana |
| Sullivan | 12,379 | 41.5% | 29,839 | BlueCross BlueShield of Tennessee |
| Davidson | 10,804 | 21.9% | 49,434 | Health Care Service Corporation |
| Knox | 8,100 | 15.9% | 50,982 | Humana |
BlueCross BlueShield of Tennessee against the Tennessee market
The carrier’s figures beside the state’s, each weighted by members. A difference is a difference, not a grade: a higher maximum or a lower rating is a design and a result, read in context.
top three hold 81.4%
market 3.74, −0.31, 4th of 5 rated
market 95%, −3 points
market $6,500, −$600
| # | Carrier | Members | Share | Twelve months | Election step | Counties led | Rating | $0 premium |
|---|---|---|---|---|---|---|---|---|
| 1 | BlueCross BlueShield of Tennessee | 211,033 | 28.1% | +7.3% | +3.9% | 44 of 95 | 3.43 | 93% |
| 2 | UnitedHealth | 210,499 | 28.1% | −5.9% | −7.2% | 28 of 95 | 3.65 | 98% |
| 3 | Humana | 189,183 | 25.2% | +9.0% | +7.2% | 15 of 95 | 4.45 | 97% |
| 4 | Health Care Service Corporation | 80,906 | 10.8% | +3.4% | +0.2% | 8 of 81 | 3.49 | 100% |
| 5 | Elevance | 26,638 | 3.5% | −8.7% | −5.3% | 0 of 94 | 3.00 | 84% |
What 2027 does to BlueCross BlueShield of Tennessee's plans in Tennessee
The fate assigned to each of the carrier’s plans for 2027, joined to the members in it today.
13,007 members move with 2 plans consolidated into another of the carrier’s plans. 136,385 members are in 4 plans that drop at least one county; which counties is not stated. In all, 71% of BlueCross BlueShield of Tennessee’s Tennessee members are in a plan whose service area or status changes.
The read on BlueCross BlueShield of Tennessee in Tennessee is in Carrier Command.
Risk and rebate against the market, the five-test read on coding versus selection, Stars levers and next year's cut points, the election-period forecast and the county-by-county standing, written as a monthly page.
BlueCross BlueShield of Tennessee elsewhere, and the rest of Tennessee
- UnitedHealth28.1%
- Humana25.2%
- Health Care Service Corporation10.8%
- Elevance3.5%
How these numbers are made
- Members are visible members: CMS suppresses any plan-county cell of ten or fewer, so small counties undercount. Market share excludes employer group plans.
- Enrollment is Oct 2026; the twelve months run Nov 2025 to Oct 2026; the election step compares December 2025 with January 2026.
- BlueCross BlueShield of Tennessee is the parent organization BlueCross BlueShield of Tennessee; its 20 plans in Tennessee may sell under other brand names. The rating is the 2027 overall Star Rating of its contracts weighted by members in Tennessee; $0 premium and the in-network maximum are the 2027 filings weighted by members today.
- Plan fates are the ones assigned for contract year 2027.
- Every figure comes from public CMS data as Livmor reads it, and the page is rebuilt when a new month posts. Livmor Carrier Command, public CMS data.