MA Enrollment Explorer / Parent organizations / Intermountain Health Care, Inc.
Intermountain Health Care, Inc.: Medicare Advantage enrollment and market share
Intermountain Health Care, Inc. had 67,395 Medicare Advantage members in October 2026, #41 nationally with 0.19% of all MA enrollment. It lost 1,916 members (−2.8%) since October 2025, and has enrollment in 5 states and 37 counties with 11 or more members, leading the market in 2 of them. In the 2026 Annual Election Period (December to February) it lost 3,895 members (−5.6%). For 2027, 22,952 of its members are in plans that terminate and 3,926 in plans leaving their county, and it leaves 5 counties entirely.
67KMA members, October 2026
−2.8%change since October 2025 (−1,916)
0.19%national MA share, rank 41
1contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| Utah | 52,614 | 19.4% |
| Colorado | 7,395 | 1.3% |
| Nevada | 7,144 | 2.2% |
| Arizona | 13 | 0.0% |
| California | 12 | 0.0% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Salt Lake County, UT | 17,937 | +177 | 18.3% |
| Utah County, UT | 11,858 | +376 | 28.0% |
| Washington County, UT | 7,161 | +700 | 28.1% |
| Clark County, NV | 6,756 | −1,425 | 2.8% |
| Davis County, UT | 4,634 | −10 | 16.7% |
| Weber County, UT | 4,586 | +45 | 18.9% |
| Cache County, UT | 1,968 | +229 | 17.5% |
| Mesa County, CO | 1,533 | +565 | 8.0% |
| Iron County, UT | 1,482 | +40 | 26.8% |
| Sanpete County, UT | 1,082 | +94 | 36.3% |
| Larimer County, CO | 923 | +642 | 2.5% |
| Sevier County, UT | 856 | +17 | 35.7% |
| El Paso County, CO | 767 | +233 | 1.1% |
| Weld County, CO | 703 | +387 | 2.2% |
| Adams County, CO | 545 | +123 | 1.2% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H1994 Select Health | HMO/HMOPOS | 57,745 | 66,266 | 67,395 |
| H2246 Select Health | Local PPO | 2,879 | 3,045 | n/a |
Star ratings for these contracts are in the MA Quality Dashboard.