MA Enrollment Explorer / Parent organizations / Sanford Health
Sanford Health: Medicare Advantage enrollment and market share
Sanford Health had 92,864 Medicare Advantage members in October 2026, #33 nationally with 0.26% of all MA enrollment. It gained 11,928 members (+14.7%) since October 2025, and has enrollment in 6 states and 133 counties with 11 or more members, leading the market in 23 of them. In the 2026 Annual Election Period (December to February) it gained 10,361 members (+12.7%). For 2027, 28,801 of its members are in plans that terminate and 6,199 in plans leaving their county, and it leaves 20 counties entirely.
93KMA members, October 2026
+14.7%change since October 2025 (+11,928)
0.26%national MA share, rank 33
7contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| Wisconsin | 79,309 | 10.0% |
| South Dakota | 4,864 | 6.7% |
| North Dakota | 4,616 | 8.6% |
| Minnesota | 2,921 | 0.4% |
| Nebraska | 611 | 0.5% |
| Iowa | 187 | 0.1% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Marathon County, WI | 11,924 | +376 | 56.5% |
| Wood County, WI | 9,099 | +239 | 66.2% |
| Eau Claire County, WI | 5,197 | +654 | 46.7% |
| Chippewa County, WI | 4,763 | +551 | 57.5% |
| Barron County, WI | 4,185 | +491 | 58.2% |
| Portage County, WI | 3,811 | +175 | 41.8% |
| Clark County, WI | 3,529 | +198 | 75.6% |
| Oneida County, WI | 3,220 | +83 | 46.9% |
| Minnehaha County, SD | 3,078 | +600 | 17.5% |
| Lincoln County, WI | 2,491 | +241 | 46.5% |
| Taylor County, WI | 2,109 | +111 | 64.9% |
| Vilas County, WI | 1,969 | +102 | 46.5% |
| Cass County, ND | 1,943 | +480 | 16.2% |
| Dunn County, WI | 1,876 | +365 | 39.0% |
| Rusk County, WI | 1,812 | +159 | 69.7% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H5211 Security Health Plan of Wisconsin, Inc. | HMO/HMOPOS | 64,811 | 71,066 | 79,360 |
| H8385 Align powered by Sanford Health Plan | Local PPO | 3,820 | 6,985 | 9,086 |
| H3186 Align powered by Sanford Health Plan | Local PPO | 891 | 1,691 | 2,953 |
| H7511 Great Plains Medicare Advantage | HMO/HMOPOS | 537 | 549 | 641 |
| H8967 Great Plains Medicare Advantage | HMO/HMOPOS | 200 | 314 | 391 |
| H1787 Great Plains Medicare Advantage | HMO/HMOPOS | 303 | 331 | 366 |
| H0816 MyAdvocate Medicare Advantage | HMO/HMOPOS | n/a | n/a | 67 |
Star ratings for these contracts are in the MA Quality Dashboard.