TRYNYTYhealth:enablement
MA Enrollment Explorer / Iowa / Jones County

Medicare Advantage in Jones County, Iowa

2,356 people in Jones County, Iowa were enrolled in Medicare Advantage in October 2026, 45.6% of 5,163 eligible beneficiaries (−0.8 pts since October 2025). CVS Health Corporation is the largest parent organization with 35% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,392 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 557 members here are in plans that terminate or leave the county, and Blue Cross Blue Shield of Michigan Mutual Ins. Co. leaves. MA plans offered go from 27 to 29.

45.6%MA penetration, October 2026
2,356MA enrollees
35%leading parent's share
22.6%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Iowa

Parent organizations in Jones County

Parent organizationMembersChange since October 2025Share
CVS Health Corporation817+16135.3%
Blue Cross Blue Shield of Michigan Mutual Ins. Co.513−522.2%
Humana Inc.452+10719.6%
UnitedHealth Group, Inc.368−27515.9%
Medical Associates Clinic, P.C.76−63.3%
Centene Corporation34new1.5%
Elevance Health, Inc.30−231.3%
Mitchell Family Office22+31.0%

CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.

Value-based care alongside MA

In PY 2024, 521 beneficiaries in Jones County were assigned to 22 Medicare Shared Savings Program ACOs, 22.6% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.