Free tool · public CMS data
Wyoming Medicare Advantage market share
In September 2026, 18,243 Wyoming Medicare beneficiaries were enrolled in a Medicare Advantage plan across 61 parent carriers and 23 counties, led by UnitedHealth Group, Inc. with 48.0% of counted enrollment.
Data month
September 2026
Advantage enrollees
18,243
-23.1% vs September 2025
Parent carriers
61
Advantage penetration
17.9%
CMS Medicare Monthly Enrollment, 2024
Carriers in Wyoming
CMS Monthly Enrollment by Contract/Plan/State/County (CPSC) · September 2026
| # | Parent organisation | Enrollees | Share | Counties | vs September 2025 |
|---|---|---|---|---|---|
| 1 | UnitedHealth Group, Inc. | 8,753 | 48.0% | 23 | -60.2% |
| 2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 6,520 | 35.7% | 23 | — |
| 3 | Humana Inc. | 2,067 | 11.3% | 23 | +200.4% |
| 4 | CVS Health Corporation | 690 | 3.8% | 23 | -30.9% |
| 5 | Fenyx Health Holdings, Inc. | 175 | 1.0% | 23 | — |
| 6 | Elevance Health, Inc. | 38 | 0.2% | 23 | 0.0% |
| 7 | Alignment Healthcare USA, LLC | 0 | 0.0% | 23 | — |
| 8 | Allina Health and Aetna Insurance Holding Company | 0 | 0.0% | 23 | — |
| 9 | ATRIO Health Plans | 0 | 0.0% | 2 | — |
| 10 | Aultman Health Foundation | 0 | 0.0% | 23 | — |
| 11 | Aware Integrated, Inc. | 0 | 0.0% | 23 | — |
| 12 | Baystate Health, Inc. | 0 | 0.0% | 23 | — |
| 13 | Blue Cross & Blue Shield of Rhode Island | 0 | 0.0% | 23 | — |
| 14 | Blue Cross and Blue Shield of Massachusetts, Inc. | 0 | 0.0% | 23 | — |
| 15 | Blue Cross Blue Shield of Kansas | 0 | 0.0% | 23 | — |
| 16 | Blue Cross Blue Shield of Nebraska | 0 | 0.0% | 23 | — |
| 17 | BlueCross BlueShield of Alabama | 0 | 0.0% | 23 | — |
| 18 | BlueCross BlueShield of South Carolina (BCBSSC) | 0 | 0.0% | 23 | — |
| 19 | BlueCross BlueShield of Tennessee | 0 | 0.0% | 23 | — |
| 20 | California Physicians' Service | 0 | 0.0% | 23 | — |
| 21 | Cambia Health Solutions, Inc. | 0 | 0.0% | 23 | — |
| 22 | CAPITAL BLUE CROSS | 0 | 0.0% | 23 | — |
| 23 | CareFirst, Inc. | 0 | 0.0% | 23 | — |
| 24 | Centene Corporation | 0 | 0.0% | 3 | — |
| 25 | Corewell Health | 0 | 0.0% | 23 | — |
| 26 | CuraCor Solutions Corp. | 0 | 0.0% | 23 | — |
| 27 | Devoted Health, Inc. | 0 | 0.0% | 3 | — |
| 28 | EmblemHealth, Inc. | 0 | 0.0% | 23 | — |
| 29 | Fallon Community Health Plan, Inc. | 0 | 0.0% | 23 | — |
| 30 | General Catalyst Group Management Holdings LP | 0 | 0.0% | 23 | — |
| 31 | Guidewell Mutual Holding Corporation | 0 | 0.0% | 23 | — |
| 32 | Hawaii Medical Service Association | 0 | 0.0% | 23 | — |
| 33 | Health Care Service Corporation | 0 | 0.0% | 23 | — |
| 34 | Healthfirst, Inc. | 0 | 0.0% | 23 | — |
| 35 | HealthPartners, Inc. | 0 | 0.0% | 23 | — |
| 36 | Henry Ford Health System | 0 | 0.0% | 23 | — |
| 37 | Highmark Health | 0 | 0.0% | 23 | — |
| 38 | Horizon Mutual Holdings, Inc | 0 | 0.0% | 23 | — |
| 39 | Imperial Health Plan of California | 0 | 0.0% | 1 | — |
| 40 | Independence Health Group, Inc. | 0 | 0.0% | 23 | — |
| 41 | Independent Health Association, Inc. | 0 | 0.0% | 23 | — |
| 42 | INLAND EMPIRE HEALTH PLAN | 0 | 0.0% | 1 | — |
| 43 | Intermountain Health Care, Inc. | 0 | 0.0% | 4 | — |
| 44 | Kaiser Foundation Health Plan, Inc. | 0 | 0.0% | 9 | — |
| 45 | Lifetime Healthcare, Inc. | 0 | 0.0% | 23 | — |
| 46 | Louisiana Health Service & Indemnity Company | 0 | 0.0% | 23 | — |
| 47 | Martin's Point Health Care, Inc. | 0 | 0.0% | 23 | — |
| 48 | Mass General Brigham Incorporated | 0 | 0.0% | 2 | — |
| 49 | Medica Holding Company | 0 | 0.0% | 15 | — |
| 50 | MEDICAL MUTUAL OF OHIO | 0 | 0.0% | 23 | — |
| 51 | Molina Healthcare, Inc. | 0 | 0.0% | 1 | — |
| 52 | MVP Health Care, Inc. | 0 | 0.0% | 23 | — |
| 53 | NEIGHBORHOOD HEALTH PLAN OF RHODE ISLAND | 0 | 0.0% | 1 | — |
| 54 | Network Health, Inc. | 0 | 0.0% | 23 | — |
| 55 | Presbyterian Healthcare Services | 0 | 0.0% | 1 | — |
| 56 | Sanford Health | 0 | 0.0% | 3 | — |
| 57 | SCAN Group | 0 | 0.0% | 6 | — |
| 58 | The Health Plan of West Virginia, Inc. | 0 | 0.0% | 23 | — |
| 59 | Trinity Health Corporation | 0 | 0.0% | 1 | — |
| 60 | UPMC Health System | 0 | 0.0% | 23 | — |
| 61 | USAble Mutual Insurance Company | 0 | 0.0% | 23 | — |
County view
Leading carrier and Advantage enrollment in each Wyoming county. Penetration is from CMS Medicare Monthly Enrollment, 2024.
| County | Advantage enrollees | Leading carrier | Leader share | Carriers | Penetration |
|---|---|---|---|---|---|
| Laramie | 5,246 | UnitedHealth Group, Inc. | 84.7% | 52 | 22.3% |
| Natrona | 3,191 | UnitedHealth Group, Inc. | 92.8% | 51 | 18.5% |
| Uinta | 1,067 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 72.0% | 49 | 33.4% |
| Sweetwater | 909 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 82.3% | 49 | 16.3% |
| Fremont | 826 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 81.1% | 51 | 16.7% |
| Albany | 780 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 42.2% | 47 | 19.2% |
| Park | 775 | Humana Inc. | 42.7% | 50 | 13.4% |
| Sheridan | 693 | UnitedHealth Group, Inc. | 93.5% | 52 | 9.7% |
| Campbell | 680 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 81.0% | 47 | 14.6% |
| Goshen | 633 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 59.6% | 46 | 23.4% |
| Lincoln | 632 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 49.7% | 49 | 21.0% |
| Carbon | 444 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 69.8% | 48 | 22.1% |
| Platte | 413 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 90.6% | 47 | 22.6% |
| Johnson | 369 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 90.0% | 47 | 18.7% |
| Washakie | 269 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 100.0% | 47 | 19.7% |
| Big Horn | 210 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 92.9% | 47 | 12.6% |
| Converse | 196 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 93.4% | 47 | 13.5% |
| Teton | 194 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 40.2% | 50 | 9.6% |
| Weston | 184 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 56.0% | 46 | 18.6% |
| Crook | 178 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 61.2% | 46 | 17.1% |
| Hot Springs | 145 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 80.7% | 47 | 16.5% |
| Sublette | 143 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 79.7% | 48 | 10.2% |
| Niobrara | 66 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 100.0% | 48 | 22.9% |
What is missing
CMS suppresses any plan-county cell with fewer than 11 enrollees. Those enrollees are missing from these counts, so every figure is a floor, not an exact total.
What is counted
Counts cover Medicare Advantage contracts only (Local CCP, Regional CCP, PFFS and MSA). Standalone Part D drug plans, cost plans, HCPP and PACE contracts are excluded.
Source: CMS Monthly Enrollment by Contract/Plan/State/County (CPSC).