Medicare Advantage in Anne Arundel County, Maryland
22,165 people in Anne Arundel County, Maryland were enrolled in Medicare Advantage in October 2026, 19.8% of 112,068 eligible beneficiaries (−1.0 pts since October 2025). Kaiser Foundation Health Plan, Inc. is the largest parent organization with 20% of reported enrollment; 13 parent organizations have 11 or more members and the HHI is 1,515 (moderately concentrated). HRSA classifies the county as partly rural. For 2027, 2,210 members here are in plans that terminate or leave the county, and SNP Holdings, LLC leaves. MA plans offered go from 21 to 18.
Parent organizations in Anne Arundel County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Kaiser Foundation Health Plan, Inc. | 4,459 | +151 | 20.3% |
| CareFirst, Inc. | 4,265 | +2,576 | 19.4% |
| CVS Health Corporation | 3,802 | −1,796 | 17.3% |
| Humana Inc. | 2,835 | +1,575 | 12.9% |
| UnitedHealth Group, Inc. | 2,699 | −3,692 | 12.3% |
| Johns Hopkins Healthcare LLC | 1,872 | +199 | 8.5% |
| Health Care Service Corporation | 1,224 | +224 | 5.6% |
| LifeBridge Health, Inc. | 625 | +327 | 2.8% |
| Elevance Health, Inc. | 82 | +8 | 0.4% |
| SNP Holdings, LLC | 49 | −22 | 0.2% |
| Highmark Health | 29 | +4 | 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 26 | −3 | 0.1% |
| ISNP Holdings, LLC | 23 | +10 | 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 10,842 beneficiaries in Anne Arundel County were assigned to 199 Medicare Shared Savings Program ACOs, 17.7% of assignable Original Medicare beneficiaries. Together, roughly 34% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.