Security Health Plan of Wisconsin, Inc.
Part of Marshfield Clinic Health System, Inc.
Medicare Advantage insurer · CMS 2026 data
What the CMS Data Shows About Security Health Plan of Wisconsin, Inc.
Security Health Plan of Wisconsin, Inc. is registered with the Centers for Medicare & Medicaid Services as a Medicare Advantage Organization and, in the 2026 contract year, markets 6 distinct plans across 1 state and 54 counties. The contracts sit inside the Marshfield Clinic Health System, Inc. corporate family, which matters for quality measurement because CMS aggregates many Star Rating measures at the parent-organization level before applying the contract-level bonus payment rules. CMS-reported enrollment across this issuer's MA plans is not disclosed in the public file for the 2026 plan year, a figure drawn from the same Monthly Enrollment by Contract/Plan/State/County Report used by Medicare researchers.
On quality, Security Health Plan of Wisconsin, Inc. carries a weighted mean CMS Star Rating of 4.50 out of 5 across its Medicare Advantage book, with 0 contracts earning the top 5-star tier. The star score is not a marketing claim — it is a composite CMS calculates from more than 40 individual measures spanning preventive care delivery, chronic-condition management, patient safety, member-experience surveys (CAHPS), appeals handling, and plan-operations metrics. Contracts above 4 stars trigger federal Quality Bonus Payments, a rebate mechanism that insurers typically re-invest into supplemental benefits such as dental, vision, hearing, over-the-counter allowances, and fitness programs — which is why two plans from the same issuer can look very different on extras depending on which contract they fall under.
The product mix shown below — HMO POS, HMO — determines how beneficiaries access care. HMO plans keep cost-sharing low but lock to in-network providers; local and regional PPOs relax that at higher copays; and Special Needs Plans (SNPs) add disease-specific formulary and care-management features for chronic conditions, duals, or institutional residents. Before enrolling, verify that Security Health Plan of Wisconsin, Inc.'s plan is offered in your specific county, that your preferred providers are in network, and that your prescriptions appear on the plan's current formulary. All figures on this page originate from CMS public-use files for the 2026 contract year and are informational only, not Medicare counseling advice.
States Covered
Plans Offered by Security Health Plan of Wisconsin, Inc.
| Plan Name | Type | State | Stars | Action |
|---|---|---|---|---|
| SECURITY HEALTH PLAN OF WISCONSIN, INC. | HMO POS | WI | 4.5 | View details → |
| SECURITY HEALTH PLAN OF WISCONSIN, INC. | HMO POS | WI | 4.5 | View details → |
| SECURITY HEALTH PLAN OF WISCONSIN, INC. | HMO POS | WI | 4.5 | View details → |
| SECURITY HEALTH PLAN OF WISCONSIN, INC. | HMO POS | WI | 4.5 | View details → |
| SECURITY HEALTH PLAN OF WISCONSIN, INC. | HMO | WI | 4.5 | View details → |
| SECURITY HEALTH PLAN OF WISCONSIN, INC. | HMO POS | WI | 4.5 | View details → |
Related Healthcare Data
Medicare Advantage Guides
Frequently Asked Questions
How many Medicare Advantage plans does Security Health Plan of Wisconsin, Inc. offer?
Security Health Plan of Wisconsin, Inc. offers 6 Medicare Advantage plans across 1 state (WI), serving beneficiaries in 54 counties.
What is Security Health Plan of Wisconsin, Inc.'s average star rating?
Security Health Plan of Wisconsin, Inc. has an average CMS star rating of 4.5 out of 5 across its Medicare Advantage plans. Star ratings are based on quality measures including clinical outcomes, patient experience, and plan operations.
What plan types does Security Health Plan of Wisconsin, Inc. offer?
Security Health Plan of Wisconsin, Inc. offers HMO POS, HMO Medicare Advantage plans. Security Health Plan of Wisconsin, Inc. operates under Marshfield Clinic Health System, Inc.. Plan types differ in provider network flexibility and cost structure.
How many people are enrolled in Security Health Plan of Wisconsin, Inc. plans?
Security Health Plan of Wisconsin, Inc. has an estimated data not available beneficiaries enrolled across its Medicare Advantage plans. Enrollment figures reflect CMS 2026 plan year data.
Read our methodology — how this data is sourced, computed, and verified.