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Medicare Advantage plans in San Mateo County, CA for 2027
26 Medicare Advantage plans from 10 companies are available in San Mateo County for 2027. Plans with a $0 monthly premium (not counting special needs plans): 11. Lowest in-network out-of-pocket limit: $295.
Open enrollment for 2027 runs October 15 – December 7, 2026; coverage starts January 1, 2027.
Plans with drug coverage (16)
| Plan | Type | Monthly premium | Drug deductible | Out-of-pocket limit (in network) | Last year's star rating |
|---|---|---|---|---|---|
| Imperial Dynamic Plan (HMO) Imperial Health Plan of California, Inc. | HMO | $0 | $0 | $295 | 3.5 |
| Anthem Prime (HMO-POS) Anthem Blue Cross Partnership Plan | HMO-POS | $0 | $395 | $1,200 | 3 |
| SCAN Classic (HMO) SCAN Health Plan | HMO | $0 | $450 | $2,000 | 4 |
| SCAN Costco Medicare Advantage (HMO) SCAN Health Plan | HMO | $0 | $450 | $2,000 | 4 |
| SCAN Allied (HMO) SCAN Health Plan | HMO | $0 | $75 | $2,900 | 4 |
| Central Health Harmony 031 (HMO) Alignment Health Plan | HMO | $0 | $0 | $3,400 | 4 |
| CCHP Senior Value Program (HMO) CCHP (Chinese Community Health Plan) | HMO | $0 | $0 | $3,500 | 3 |
| Aetna Medicare Signature Extra (HMO) Aetna Medicare | HMO | $0 | $400 | $3,600 | 3 |
| Anthem Medicare Advantage (HMO-POS) Anthem Blue Cross | HMO-POS | $0 | $0 | $5,600 | 3 |
| Alignment Health Honor Plus 060 (HMO) Alignment Health Plan | HMO | $7.30 | $700 | $9,850 | 4 |
| Kaiser Permanente Senior Advantage Basic San Mateo (HMO) Kaiser Permanente | HMO | $28 | $0 | $6,000 | 4.5 |
| CCHP Senior Program (HMO) CCHP (Chinese Community Health Plan) | HMO | $38 | $0 | $3,000 | 3 |
| Sutter Senior Advantage, a SCAN Medicare Plan (HMO) SCAN Health Plan | HMO | $49 | $0 | $4,900 | 4 |
| Alignment Health Sutter Advantage +More (HMO) Alignment Health Plan | HMO | $50 | $0 | $4,900 | 4 |
| Blue Shield Inspire (HMO) Blue Shield of California | HMO | $60 | $475 | $4,300 | 4 |
| Kaiser Permanente Sr Adv Enhanced Marin San Mateo (HMO) Kaiser Permanente | HMO | $97 | $0 | $3,900 | 4.5 |
Plans without drug coverage (2)
| Plan | Type | Monthly premium | Out-of-pocket limit (in network) | Last year's star rating |
|---|---|---|---|---|
| Imperial Courage Plan (HMO) Imperial Health Plan of California, Inc. | HMO | $0 | $2,999 | 3.5 |
| Aetna Medicare Eagle (HMO) Aetna Medicare | HMO | $0 | $4,450 | 3 |
Special needs plans (8)
Special needs plans are only for people who also have Medicaid (D-SNP), certain chronic conditions (C-SNP) or who live in an institution such as a nursing home (I-SNP).
| Plan | Type | Monthly premium | Drug deductible | Out-of-pocket limit (in network) | Last year's star rating |
|---|---|---|---|---|---|
| Imperial Senior Value (HMO C-SNP) Imperial Health Plan of California, Inc. | HMO C-SNP | $0 | $0 | $295 | 3.5 |
| Premier Care (HMO I-SNP) Align Senior Care | HMO I-SNP | $0 | $50 | $1,900 | — |
| SCAN Balance (HMO C-SNP) SCAN Health Plan | HMO C-SNP | $0 | $450 | $1,900 | 4 |
| Kaiser Permanente Dual Complete North P22 (HMO D-SNP) Kaiser Permanente | HMO D-SNP | $0 | $700 | $9,850 | 4 |
| SCAN Strive (HMO C-SNP) SCAN Health Plan | HMO C-SNP | $0 | $450 | $9,850 | 4 |
| Imperial Flex (HMO C-SNP) Imperial Health Plan of California, Inc. | HMO C-SNP | $2.70 | $450 | $9,850 | 3.5 |
| CareAdvantage (HMO D-SNP) HEALTH PLAN OF SAN MATEO | HMO D-SNP | $7.30 | $700 | $9,850 | 3 |
| Senior Care (HMO I-SNP) Align Senior Care | HMO I-SNP | $7.30 | $700 | $9,850 | — |
Stand-alone Part D drug plans in California →
Star ratings for 2027 are published by CMS in October; the stars shown are the contract's 2026 overall rating. We are not connected with or endorsed by the U.S. government or the federal Medicare program, and we do not sell plans. We do not list plan benefits in full; confirm costs and coverage with the plan, Medicare.gov or 1-800-MEDICARE (TTY 1-877-486-2048) before you enroll. Source: CMS Medicare Advantage and Part D Landscape, 2027 (2026-09 release).