Mills-Peninsula Medical Group is affiliated with both HealthNet Seniority Plus and Secure Horizons. HealthNet Seniority Plus is available to all MPMG members. Please note that in San Mateo County, Secure Horizons is available to MPMG members who reside in the following zip codes only:
| City | Zip Code |
| Atherton | 94027 |
| Belmont | 94002 |
| Burlingame | 94010 |
| Burlingame | 94011 |
| Half Moon Bay | 94019 |
| Millbrae | 94030 |
| Redwood City | 94061 |
| Redwood City | 94062 |
| Redwood City | 94063 |
| Redwood City | 94065 |
| San Bruno | 94066 |
| San Carlos | 94070 |
| San Francisco | 94128 |
| San Mateo | 94401 |
| San Mateo | 94402 |
| San Mateo | 94403 |
| San Mateo | 94404 |
| San Mateo | 94408 |
| So. San Francisco | 94080 |
| So. San Francisco | 94083 |
Last Reviewed February 2008