MA Enrollment Explorer / Parent organizations / ISNP Holdings, LLC
ISNP Holdings, LLC: Medicare Advantage enrollment and market share
ISNP Holdings, LLC had 535 Medicare Advantage members in October 2026, #199 nationally with 0.00% of all MA enrollment. It gained 46 members (+9.4%) since October 2025, and has enrollment in 1 state and 4 counties with 11 or more members. In the 2026 Annual Election Period (December to February) it gained 3 members (+0.6%). For 2027, none of its members are in plans that terminate or leave their county.
535MA members, October 2026
+9.4%change since October 2025 (+46)
0.00%national MA share, rank 199
1contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| Maryland | 528 | 0.2% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Baltimore City, MD | 348 | +1 | 0.9% |
| Baltimore County, MD | 136 | +13 | 0.3% |
| Anne Arundel County, MD | 23 | +10 | 0.1% |
| Prince George's County, MD | 21 | new | 0.0% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H6959 KeyCare Advantage | HMO/HMOPOS | 490 | 489 | 535 |
Star ratings for these contracts are in the MA Quality Dashboard.