MA Enrollment Explorer / States / North Dakota
Medicare Advantage in North Dakota: enrollment, penetration and market share
54,707 people in North Dakota were enrolled in Medicare Advantage in October 2026. 35.2% of the state's 155,405 eligible Medicare beneficiaries are in Medicare Advantage, −0.5 pts since October 2025. Medica Holding Company is the largest parent organization with 61% of reported enrollment; 10 parent organizations have 11 or more members, and the market's HHI is 4,100 (highly concentrated). Through the 2026 Annual Election Period (December to February), reported MA enrollment in North Dakota changed by −142 (−0.3%).
35.2%MA penetration, October 2026
55KMA enrollees
10parent organizations (11+ members)
4,100HHI, highly concentrated
Parent organizations in North Dakota
| Parent organization | Members | Change | Share | Share change |
|---|---|---|---|---|
| Medica Holding Company | 32,777 | +14,177 | 60.8% | +25.9 pts |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 6,690 | −14,170 | 12.4% | −26.7 pts |
| UnitedHealth Group, Inc. | 6,363 | +104 | 11.8% | +0.1 pts |
| Sanford Health | 4,616 | +1,043 | 8.6% | +1.9 pts |
| CVS Health Corporation | 3,002 | +1,109 | 5.6% | +2.0 pts |
| Northland Healthcare Alliance | 186 | +2 | 0.3% | +0.00 pts |
| UMWA Health and Retirement Funds | 128 | +1 | 0.2% | −0.00 pts |
| Aware Integrated, Inc. | 85 | +57 | 0.2% | +0.1 pts |
| Health Care Service Corporation | 15 | new | under 0.1% | +0.03 pts |
| Humana Inc. | 12 | −1,137 | under 0.1% | −2.1 pts |
Change and share change are since October 2025. Shares are of reported enrollment in the CMS State/County/Contract file.