MA Enrollment Explorer / States / Wyoming
Medicare Advantage in Wyoming: enrollment, penetration and market share
19,830 people in Wyoming were enrolled in Medicare Advantage in October 2026. 14.8% of the state's 134,038 eligible Medicare beneficiaries are in Medicare Advantage, −4.5 pts since October 2025. UnitedHealth Group, Inc. is the largest parent organization with 47% of reported enrollment; 7 parent organizations have 11 or more members, and the market's HHI is 3,587 (highly concentrated). Through the 2026 Annual Election Period (December to February), reported MA enrollment in Wyoming changed by −5,764 (−23.4%).
14.8%MA penetration, October 2026
20KMA enrollees
7parent organizations (11+ members)
3,587HHI, highly concentrated
Parent organizations in Wyoming
| Parent organization | Members | Change | Share | Share change |
|---|---|---|---|---|
| UnitedHealth Group, Inc. | 9,094 | −13,329 | 47.5% | −43.2 pts |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 6,564 | new | 34.3% | +34.3 pts |
| Humana Inc. | 2,270 | +1,393 | 11.8% | +8.3 pts |
| CVS Health Corporation | 857 | −296 | 4.5% | −0.2 pts |
| Fenyx Health Holdings, Inc. | 212 | new | 1.1% | +1.1 pts |
| UMWA Health and Retirement Funds | 99 | +14 | 0.5% | +0.2 pts |
| Elevance Health, Inc. | 68 | −3 | 0.4% | +0.1 pts |
Change and share change are since October 2025. Shares are of reported enrollment in the CMS State/County/Contract file.