TRYNYTYhealth:enablement
MA Enrollment Explorer / Iowa / Davis County

Medicare Advantage in Davis County, Iowa

577 people in Davis County, Iowa were enrolled in Medicare Advantage in October 2026, 30.4% of 1,899 eligible beneficiaries (−2.6 pts since October 2025). CVS Health Corporation is the largest parent organization with 40% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 2,974 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 247 members here are in plans that terminate or leave the county, and CVS Health Corporation leaves. MA plans offered go from 13 to 4.

30.4%MA penetration, October 2026
577MA enrollees
40%leading parent's share
81.2%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Iowa

Parent organizations in Davis County

Parent organizationMembersChange since October 2025Share
CVS Health Corporation225+17040.1%
UnitedHealth Group, Inc.169−21730.1%
Humana Inc.99+4117.6%
Centene Corporation68+5112.1%

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

Value-based care alongside MA

In PY 2024, 868 beneficiaries in Davis County were assigned to 12 Medicare Shared Savings Program ACOs, 81.2% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.