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Get to know us

Security Health Plan, a not-for-profit health maintenance organization sponsored by Marshfield Clinic, is committed to ensuring members receive a high-quality health care experience, improving members’ health and slowing the rising trends of health care costs.

Variety of options

We offer a variety of health-insurance options for employer groups, individuals of all ages, and families of various income levels. Our broad provider network includes doctors, other health care professionals, hospitals and pharmacies you know and trust.

Our history in helping members afford their health care costs goes back to 1971 when we were founded as the Greater Marshfield Community Health Plan, through a partnership between Marshfield Clinic, St. Joseph’s Hospital in Marshfield and Blue Cross Blue Shield of Wisconsin. The health plan became Security Health Plan in 1986 with Marshfield Clinic as its sole sponsor. For more information on Marshfield Clinic click here.


Security Health Plan news and developments

Press releases and other articles are posted here so you can be aware of what’s happening with Security Health Plan.

View news and developments

Security Health Plan assures high-quality coverage

We pride ourselves on providing the best in affordable health care coverage. And we never stop working to give you better value with our quality assurance and improvement procedures.

Learn about our quality

Communities Benefits and Prevention Program

Security Health Plan strives to improve the health, lifestyles and overall well-being of the communities we serve. As part of our commitment, we provide charitable contributions and mini-grants to support organizations and efforts that reflect our vision of building healthy communities.

Learn more

Security Health Plan compliance tool kit

We want to help your business be a successful partner with Security Health Plan. This page gives you information you need for your company to be a business associate with Security Health Plan.

View compliance tool kit

Service area maps

See what counties we cover for our individual and family, group, BadgerCare Plus and Advocare Medicare Advantage plans.

View our service area

Questions about Security Health Plan?

Click here to view our commonly asked questions

Security Health Plan's Mission Statement

  • Providing access to health care
  • Serving as an advocate for customers
  • Managing health care resources to maximize value

Part of Marshfield Clinic's mission is to provide access to high-quality health care. Marshfield Clinic made a commitment more than 30 years ago to provide access to health care services by offering a financing mechanism through a health maintenance organization.

At the time, it was a novel idea. Managed care was in its infancy, and Marshfield Clinic physicians developed the first rurally based HMO in the nation. The HMO that started as Greater Marshfield Community Health Plan is now Security Health Plan.

Marshfield Clinic