MA Enrollment Explorer / Parent organizations / On Lok, Inc.
On Lok, Inc.: Medicare Advantage enrollment and market share
On Lok, Inc. had 1,778 Medicare Advantage members in October 2026, #147 nationally with 0.00% of all MA enrollment. It gained 87 members (+5.1%) 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 lost 10 members (−0.6%). For 2027, none of its members are in plans that terminate or leave their county.
1,778MA members, October 2026
+5.1%change since October 2025 (+87)
0.00%national MA share, rank 147
1contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| California | 1,762 | 0.0% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| San Francisco County, CA | 1,041 | +19 | 1.3% |
| Santa Clara County, CA | 399 | +42 | 0.2% |
| Alameda County, CA | 309 | +17 | 0.2% |
| San Mateo County, CA | 13 | new | 0.0% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H5403 On Lok PACE | National PACE | 1,630 | 1,691 | 1,778 |
Star ratings for these contracts are in the MA Quality Dashboard.