Priority Health is the nonprofit health plan owned by Corewell Health, Michigan’s largest health system. It covers about 1.4 million people, including about 240,000 in Medicare Advantage, in Michigan, Indiana, Ohio and Wisconsin (company figures).
Priority Health is Michigan’s second-largest commercial insurer, with 13% of the market, far behind Blue Cross Blue Shield of Michigan’s 65%, and the second-largest Medicare Advantage insurer in the state, with 18%, according to the American Medical Association.
Updated November 2026. This profile draws on company materials, regulatory filings, federal data and Health Plan News analysis. It is independent of Priority Health; for questions about your coverage, call the number on your member ID card.
Priority Health at a Glance
| Item | Details |
|---|---|
| Parent | Corewell Health (nonprofit) |
| Headquarters | Grand Rapids, Michigan |
| President | Nick Gates |
| Founded | 1986, by a group of physicians |
| Service area | Michigan, Indiana, Ohio, Wisconsin |
| Members | About 1.4 million |
| Medicare Advantage | About 240,000 members; HMO-POS plans 4.5 stars for 2026 |
| ACA Marketplace | Michigan; 2027 average rate filing +11.08% |
| Medicaid | Priority Health Choice and Healthy Michigan Plan |
Medicare Advantage
Priority Health’s Medicare HMO-POS plans were rated 4.5 stars and its PPO plans 4 stars for 2026 (source). Its MI Coordinated Health plan for people with both Medicare and Medicaid, launched in 2026, expands to more Lower Peninsula regions in 2027.
Medicaid, Individual and Employer Plans
Priority Health won Michigan’s 2024 Medicaid rebid and expanded into 20 northern Lower Peninsula counties. In the individual market, it filed an average 11.08% increase for 2027. For employers, it is launching a third-party administration service for Michigan self-funded employers with 51 to 99 workers in 2027.
Expansion
Priority Health became the sole member of Group Health Cooperative of Eau Claire on January 1, 2026, adding about 61,000 Wisconsin members, after adding Physicians Health Plan of Northern Indiana in late 2024 (source). Our Michigan insurer guide lists its competitors.
Priority Health by the Numbers
- Market position: second in Michigan’s commercial market (13%) and Medicare Advantage market (18%), according to 2024 AMA data.
- Claim denials: Priority Health’s Michigan HealthCare.gov plans denied 7.9% of in-network claims in 2024, well below the 18.7% national rate (federal data compiled by KFF). See our claim denial rankings.
Recent Priority Health News
- Leadership: Nick Gates was named president, and Brian Steele became chief medical officer in April 2026. (source)
- Recognition: U.S. News named Priority Health a 2026 Best Health Plan Company for Medicare Advantage. (source)
How To Contact Priority Health
| Purpose | Contact |
|---|---|
| Member services (commercial and Medicare) | 800-942-0954 |
| Individual plan sales | 833-489-5443 |
| Medicare sales | 833-860-7875 (TTY 711) |
| Medicaid and Healthy Michigan | 800-975-7630 |
| Website | priorityhealth.com |
For other carriers, see our profiles of the largest health insurance companies and follow our Health Insurance Companies hub.
Sources
ACASignups; AMA 2025; AMA Competition in Health Insurance 2025; About Priority Health; Becker’s; Becker’s Payer Issues; Business Wire; Business Wire / About Priority Health; DBusiness; DBusiness; Business Wire; American Medical Association, Competition in Health Insurance (2025 update); CMS Transparency in Coverage public use file (2024, via KFF).