MA payer · 1 active contracts
KAISER FDTN HLTH PLAN OF THE MID-ATLANTIC STATES
114,901
Total MA enrolled
24
Counties served
3
States served
MD
Largest state
Top counties
by single-county enrollment- 23,582Prince George's, MDHMO/HMOPOS · contract H2172
- 21,894Montgomery, MDHMO/HMOPOS · contract H2172
- 16,982Fairfax, VAHMO/HMOPOS · contract H2172
- 8,979Baltimore, MDHMO/HMOPOS · contract H2172
- 6,855Baltimore City, MDHMO/HMOPOS · contract H2172
- 6,600District of Columbia, DCHMO/HMOPOS · contract H2172
- 6,534Prince William, VAHMO/HMOPOS · contract H2172
- 4,406Anne Arundel, MDHMO/HMOPOS · contract H2172
- 3,471Loudoun, VAHMO/HMOPOS · contract H2172
- 2,664Howard, MDHMO/HMOPOS · contract H2172
- 2,149Arlington, VAHMO/HMOPOS · contract H2172
- 2,000Frederick, MDHMO/HMOPOS · contract H2172
- 1,830Charles, MDHMO/HMOPOS · contract H2172
- 1,729Harford, MDHMO/HMOPOS · contract H2172
- 1,377Alexandria City, VAHMO/HMOPOS · contract H2172
Plan-type mix (enrollment)
HMO/HMOPOS
114,901 enrolled
Source: CMS Monthly MA Enrollment by State/County/Contract (May 2026, abridged). Enrollment counts ≤ 10 are excluded from the source file (HIPAA suppression).