Medicare Advantage in Wisconsin: 653,879 members, 15 carriers, UnitedHealth in front.
UnitedHealth holds 33.0% of Wisconsin’s visible Medicare Advantage members, ahead of Network Health, Inc. at 20.1% and Humana at 16.6%. The market grew +0.4% (+2,942 members) from Nov 2025 to Oct 2026 and stepped −2.4% at the 2026 election period. 57.3% of the state's Medicare beneficiaries are in a Medicare Advantage plan.
Every carrier with members in Wisconsin
Ranked by visible members in Oct 2026. The twelve-month change runs Nov 2025 to Oct 2026; the election step is the carrier’s own December-to-January change. Counties led counts counties where the carrier has the most visible members and at least one other carrier is visible. Sanford Health leads 26 of the 72 counties with a lead. At the election period Group Health Cooperative of Eau Claire stepped up most (+489.6%) and Elevance stepped down most (−55.9%).
| # | Carrier | Members | Share | Twelve months | Election step | Counties led | Rating | $0 premium | Plans |
|---|---|---|---|---|---|---|---|---|---|
| 1 | UnitedHealth | 215,517 | 33.0% | −14.2% | −11.8% | 21 of 72 | 3.78 | 70% | 23 |
| 2 | Network Health, Inc. | 131,518 | 20.1% | +50.1% | +33.7% | 14 of 50 | 4.00 | 98% | 11 |
| 3 | Humana | 108,765 | 16.6% | +32.7% | +23.9% | 5 of 72 | 4.11 | 95% | 20 |
| 4 | Sanford Health | 79,030 | 12.1% | – | – | 26 of 53 | 4.00 | 28% | 6 |
| 5 | Aetna (CVS) | 30,652 | 4.7% | +25.8% | +16.3% | 1 of 32 | 3.98 | 84% | 8 |
| 6 | Elevance | 30,532 | 4.7% | −57.6% | −55.9% | 0 of 72 | 3.58 | 78% | 6 |
| 7 | University of Wisconsin Hospitals and Clincs Autho | 18,642 | 2.9% | −41.2% | −40.9% | 4 of 7 | 4.00 | 15% | 14 |
| 8 | Centene | 12,608 | 1.9% | +55.4% | +58.9% | 0 of 35 | 3.00 | 100% | 3 |
| 9 | Medica Holding Company | 11,523 | 1.8% | +6.5% | +4.6% | 1 of 9 | 4.00 | 42% | 5 |
| 10 | Aspirus, Inc.ends every plan for 2027 | 5,913 | 0.9% | +167.1% | +150.8% | 0 of 20 | – | – | 2 |
| 11 | HealthPartners, Inc. | 4,972 | 0.8% | −24.6% | −31.8% | 0 of 12 | – | 100% | 2 |
| 12 | Molina | 2,773 | 0.4% | +26.3% | +5.2% | 0 of 27 | 3.50 | 100% | 2 |
| 13 | Group Health Cooperative of Eau Claire | 1,163 | 0.2% | +787.8% | +489.6% | 0 of 19 | – | 100% | 2 |
| 14 | CareSource | 258 | 0.0% | – | – | 0 of 8 | – | 100% | 1 |
| 15 | DLP Marquette Health Plan, LLC | 13 | 0.0% | – | – | 0 of 1 | – | 100% | 1 |
Wisconsin county by county
72 counties with visible members, largest first. A county’s leader is the carrier with the most visible members there; a county with one visible carrier shows no leader, because the others are suppressed, not absent. Penetration is Medicare Advantage members as a share of the county’s Medicare beneficiaries.
| County | Visible members | Carriers | Leader | Leader share | MA penetration | Dual eligibles |
|---|---|---|---|---|---|---|
| Milwaukee | 95,711 | 7 | UnitedHealth | 55.9% | 68.2% | 39,160 |
| Waukesha | 53,860 | 9 | UnitedHealth | 57.5% | 59.5% | 8,210 |
| Brown | 37,802 | 9 | Network Health, Inc. | 41.2% | 71.8% | 6,885 |
| Outagamie | 29,507 | 10 | Network Health, Inc. | 56.9% | 73.6% | 4,245 |
| Dane | 28,286 | 10 | University of Wisconsin Hospitals and Clincs Autho | 23.7% | 38.3% | 11,077 |
| Winnebago | 26,083 | 10 | Network Health, Inc. | 53.4% | 70.7% | 4,545 |
| Racine | 24,658 | 8 | UnitedHealth | 51.9% | 63.3% | 6,768 |
| Marathon | 19,929 | 7 | Sanford Health | 59.8% | 65.0% | 3,493 |
| Washington | 19,888 | 8 | UnitedHealth | 53.2% | 64.1% | 2,134 |
| Sheboygan | 16,577 | 7 | UnitedHealth | 39.1% | 60.1% | 3,464 |
| Fond du Lac | 16,353 | 7 | Network Health, Inc. | 59.8% | 68.7% | 2,611 |
| Kenosha | 14,954 | 7 | UnitedHealth | 44.1% | 53.3% | 4,848 |
| Manitowoc | 13,726 | 7 | Network Health, Inc. | 39.6% | 64.3% | 2,675 |
| Wood | 13,146 | 6 | Sanford Health | 69.2% | 66.9% | 2,945 |
| La Crosse | 12,776 | 9 | University of Wisconsin Hospitals and Clincs Autho | 61.1% | 50.5% | 3,503 |
| Rock | 12,762 | 7 | UnitedHealth | 34.7% | 49.7% | 5,246 |
| Ozaukee | 11,953 | 8 | UnitedHealth | 49.9% | 55.9% | 1,514 |
| Dodge | 10,351 | 7 | Network Health, Inc. | 38.3% | 55.2% | 2,086 |
| Waupaca | 10,309 | 9 | Network Health, Inc. | 50.3% | 73.8% | 1,936 |
| Walworth | 10,237 | 6 | UnitedHealth | 50.6% | 46.4% | 2,247 |
| Marinette | 8,535 | 9 | UnitedHealth | 36.6% | 67.3% | 1,872 |
| Portage | 8,150 | 8 | Sanford Health | 46.8% | 54.6% | 1,575 |
| Oconto | 7,774 | 8 | Network Health, Inc. | 38.5% | 73.6% | 1,101 |
| Shawano | 7,514 | 9 | Network Health, Inc. | 41.3% | 71.3% | 1,276 |
| Eau Claire | 7,403 | 6 | Sanford Health | 70.2% | 47.4% | 3,302 |
| Calumet | 7,143 | 6 | Network Health, Inc. | 62.8% | 72.1% | 670 |
| Jefferson | 7,062 | 7 | UnitedHealth | 47.4% | 44.4% | 2,327 |
| Chippewa | 6,273 | 5 | Sanford Health | 75.9% | 50.6% | 2,181 |
| Oneida | 5,969 | 5 | Sanford Health | 53.9% | 50.4% | 1,332 |
| Barron | 5,447 | 6 | Sanford Health | 76.8% | 51.6% | 2,080 |
| Waushara | 4,919 | 8 | Network Health, Inc. | 42.5% | 68.5% | 939 |
| Lincoln | 4,801 | 6 | Sanford Health | 51.9% | 62.2% | 1,072 |
| Columbia | 4,722 | 11 | Medica Holding Company | 30.3% | 43.3% | 1,795 |
| Door | 4,656 | 6 | Humana | 39.5% | 47.1% | 670 |
| Clark | 4,471 | 7 | Sanford Health | 78.9% | 61.3% | 1,366 |
| Sauk | 3,888 | 8 | UnitedHealth | 36.8% | 37.8% | 1,852 |
| Monroe | 3,833 | 8 | University of Wisconsin Hospitals and Clincs Autho | 45.7% | 39.4% | 1,676 |
| Langlade | 3,809 | 7 | Sanford Health | 41.9% | 65.5% | 971 |
| Green Lake | 3,528 | 7 | Network Health, Inc. | 60.2% | 67.2% | 639 |
| Vilas | 3,509 | 5 | Sanford Health | 56.0% | 44.0% | 866 |
| Kewaunee | 3,478 | 7 | Network Health, Inc. | 42.3% | 70.6% | 474 |
| Trempealeau | 3,307 | 8 | University of Wisconsin Hospitals and Clincs Autho | 43.1% | 49.5% | 894 |
| Adams | 3,290 | 9 | UnitedHealth | 39.4% | 45.3% | 1,247 |
| Vernon | 3,136 | 7 | Aetna (CVS) | 65.1% | 42.3% | 1,024 |
| Taylor | 3,076 | 6 | Sanford Health | 68.6% | 62.7% | 643 |
| Dunn | 2,887 | 5 | Sanford Health | 65.0% | 46.2% | 1,852 |
| Douglas | 2,709 | 6 | Sanford Health | 49.1% | 63.4% | 1,865 |
| Green | 2,708 | 8 | UnitedHealth | 35.4% | 35.1% | 946 |
| Juneau | 2,627 | 8 | Humana | 32.5% | 40.3% | 1,207 |
| Marquette | 2,522 | 9 | Network Health, Inc. | 36.7% | 55.2% | 617 |
| Price | 2,404 | 6 | Sanford Health | 73.5% | 52.8% | 683 |
| Rusk | 2,349 | 4 | Sanford Health | 77.1% | 56.5% | 789 |
| Sawyer | 2,285 | 5 | Sanford Health | 71.3% | 48.1% | 815 |
| Washburn | 2,114 | 5 | Sanford Health | 76.9% | 50.9% | 888 |
| Polk | 2,062 | 5 | Humana | 33.3% | 51.5% | 1,393 |
| Jackson | 1,973 | 6 | Sanford Health | 58.8% | 43.5% | 723 |
| Grant | 1,854 | 5 | UnitedHealth | 82.4% | 50.2% | 1,638 |
| St. Croix | 1,647 | 4 | UnitedHealth | 34.1% | 47.6% | 1,370 |
| Burnett | 1,645 | 5 | Sanford Health | 51.1% | 46.8% | 664 |
| Ashland | 1,430 | 4 | Sanford Health | 64.8% | 43.9% | 847 |
| Forest | 1,374 | 7 | UnitedHealth | 34.0% | 52.6% | 420 |
| Bayfield | 1,319 | 5 | Sanford Health | 68.2% | 42.3% | 583 |
| Iowa | 1,279 | 7 | UnitedHealth | 33.0% | 35.5% | 662 |
| Richland | 1,205 | 6 | Humana | 53.0% | 31.9% | 713 |
| Crawford | 1,146 | 7 | Humana | 35.3% | 31.9% | 688 |
| Buffalo | 1,137 | 5 | Sanford Health | 45.0% | 38.9% | 409 |
| Iron | 1,054 | 5 | Sanford Health | 73.4% | 54.5% | 354 |
| Pierce | 1,004 | 5 | Sanford Health | 39.8% | 51.9% | 879 |
| Florence | 717 | 6 | UnitedHealth | 40.7% | 48.3% | 247 |
| Lafayette | 713 | 4 | UnitedHealth | 51.0% | 41.9% | 464 |
| Pepin | 650 | 4 | Sanford Health | 70.3% | 40.5% | 361 |
| Menominee | 504 | 6 | UnitedHealth | 38.1% | 60.6% | 279 |
Wisconsin's twelve months
Visible Medicare Advantage members in Wisconsin each month, Nov 2025 to Oct 2026. The December-to-January step is the election period; the rest of the year moves on new eligibles, special enrollment and deaths.
What 2027 does to Wisconsin
The fate assigned to every plan for 2027, joined to the members in it today. A plan that ends sends its members to choose again; a plan dropping counties keeps the plan but not every county, and which counties is not stated.
members in Wisconsin are in plans that end for 2027; Aspirus, Inc. ends every plan in the state.
- Sanford Health19,417
- UnitedHealth11,018
- Aspirus, Inc. · every plan5,913
- Humana327
members are in plans that keep selling in Wisconsin but drop at least one county for 2027.
- UnitedHealth · 17 plans179,101
- Sanford Health · 2 plans41,961
- Humana · 5 plans17,935
- Centene · 1 plans8,970
- Aetna (CVS) · 1 plans5,649
The plans on sale in Wisconsin for 2027
Benefit design weighted by each plan’s members today, so a figure is what the market’s members are offered, not a count of plans. The rating is the 2027 overall Star Rating, weighted the same way.
of members are in a plan with no monthly premium
median out-of-pocket maximum, member weighted
2027 overall, member weighted
- UnitedHealth3.78 stars · 70% at $0 · $5,400 max
- Network Health, Inc.4.00 stars · 98% at $0 · $4,500 max
- Humana4.11 stars · 95% at $0 · $6,000 max
- Sanford Health4.00 stars · 28% at $0 · $7,150 max
- Aetna (CVS)3.98 stars · 84% at $0 · $5,500 max
- Elevance3.58 stars · 78% at $0 · $4,900 max
- University of Wisconsin Hospitals and Clincs Autho4.00 stars · 15% at $0 · $4,900 max
The read on every carrier in Wisconsin is in Carrier Command.
A monthly position page for each of the 15 carriers here: risk and rebate against the market, Stars levers, the election-period forecast, county standing and the written read. Launching for Medicare Advantage plans.
Other states
Every state has its own page; the largest carriers have one nationally.
- Alabama
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Puerto Rico
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wyoming
UnitedHealth in every state · Network Health, Inc. in every state · Humana in every state · All states and carriers
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.
- Plan fates are the ones assigned for contract year 2027; benefit design is the 2027 filing; the rating is the 2027 overall Star Rating of each carrier's contracts, weighted by members in Wisconsin.
- A carrier is a parent organization; its brands in Wisconsin may carry other names. The rank 1st to 15th counts every parent with visible members in 2026.
- 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.