Medicare plan changes in California for 2027
Across 58 counties in California, the 2027 CMS file lists 582 county listings of Medicare Advantage plans with drug coverage, compared with 658 in 2026. By our count, 3 counties have none in 2027, including counties that do not appear in the CMS file at all.
Before you choose a plan
Compare plans for your ZIP code, drugs and doctors on the official Medicare Plan Finder, or call 1-800-MEDICARE (1-800-633-4227). Free, unbiased counselling is available from your State Health Insurance Assistance Program at shiphelp.org.
By county
| County | 2026 plans | 2027 plans | Change | Companies leaving |
|---|---|---|---|---|
| Alameda County | 20 | 14 | -6 | Curana Health Holdings, LLC, Elevance Health, Inc. |
| Alpine County | 1 | 1 | +0 | None |
| Amador County | 5 | 4 | -1 | Centene Corporation |
| Butte County | 1 | 1 | +0 | None |
| Calaveras County | 1 | 1 | +0 | None |
| Colusa County (not listed in either CMS file) | 0 | 0 | +0 | None |
| Contra Costa County | 5 | 4 | -1 | UnitedHealth Group, Inc. |
| Del Norte County | 1 | 1 | +0 | None |
| El Dorado County | 4 | 4 | +0 | None |
| Fresno County | 18 | 17 | -1 | Molina Healthcare, Inc. |
| Glenn County | 1 | 1 | +0 | None |
| Humboldt County | 1 | 1 | +0 | None |
| Imperial County | 6 | 4 | -2 | Molina Healthcare, Inc. |
| Inyo County | 1 | 1 | +0 | None |
| Kern County | 16 | 18 | +2 | Molina Healthcare, Inc. |
| Kings County | 11 | 12 | +1 | Molina Healthcare, Inc. |
| Lake County | 1 | 0 | -1 | UnitedHealth Group, Inc. |
| Lassen County | 1 | 1 | +0 | None |
| Los Angeles County | 68 | 65 | -3 | Molina Healthcare, Inc. |
| Madera County | 18 | 16 | -2 | Molina Healthcare, Inc. |
| Marin County | 10 | 9 | -1 | Curana Health Holdings, LLC |
| Mariposa County | 4 | 4 | +0 | None |
| Mendocino County | 2 | 1 | -1 | UnitedHealth Group, Inc. |
| Merced County | 7 | 7 | +0 | None |
| Modoc County | 1 | 1 | +0 | None |
| Mono County | 2 | 2 | +0 | None |
| Monterey County | 5 | 5 | +0 | None |
| Napa County | 3 | 3 | +0 | None |
| Nevada County | 2 | 2 | +0 | None |
| Orange County | 58 | 57 | -1 | Molina Healthcare, Inc., Providence St Joseph Health |
| Placer County | 13 | 12 | -1 | Molina Healthcare, Inc. |
| Plumas County | 2 | 2 | +0 | None |
| Riverside County | 51 | 43 | -8 | Molina Healthcare, Inc. |
| Sacramento County | 19 | 14 | -5 | Elevance Health, Inc., Molina Healthcare, Inc. |
| San Benito County | 1 | 1 | +0 | None |
| San Bernardino County | 53 | 45 | -8 | Molina Healthcare, Inc. |
| San Diego County | 54 | 41 | -13 | Molina Healthcare, Inc., Sharp Healthcare |
| San Francisco County | 25 | 22 | -3 | Curana Health Holdings, LLC, Molina Healthcare, Inc. |
| San Joaquin County | 22 | 20 | -2 | Elevance Health, Inc., Molina Healthcare, Inc. |
| San Luis Obispo County | 8 | 7 | -1 | CVS Health Corporation |
| San Mateo County | 19 | 16 | -3 | Curana Health Holdings, LLC, Molina Healthcare, Inc. |
| Santa Barbara County | 5 | 4 | -1 | CVS Health Corporation |
| Santa Clara County | 23 | 17 | -6 | Curana Health Holdings, LLC, Elevance Health, Inc., Molina Healthcare, Inc., UnitedHealth Group, Inc. |
| Santa Cruz County | 4 | 4 | +0 | None |
| Shasta County | 1 | 1 | +0 | None |
| Sierra County | 1 | 1 | +0 | None |
| Siskiyou County | 1 | 1 | +0 | None |
| Solano County | 5 | 4 | -1 | Molina Healthcare, Inc. |
| Sonoma County | 5 | 6 | +1 | None |
| Stanislaus County | 18 | 18 | +0 | Molina Healthcare, Inc. |
| Sutter County | 2 | 3 | +1 | None |
| Tehama County | 1 | 1 | +0 | None |
| Trinity County (not listed in either CMS file) | 0 | 0 | +0 | None |
| Tulare County | 11 | 11 | +0 | Molina Healthcare, Inc. |
| Tuolumne County | 1 | 1 | +0 | None |
| Ventura County | 17 | 15 | -2 | CVS Health Corporation, Centene Corporation, Molina Healthcare, Inc. |
| Yolo County | 19 | 12 | -7 | Centene Corporation, Elevance Health, Inc., Molina Healthcare, Inc. |
| Yuba County | 3 | 3 | +0 | None |
Stand-alone Part D drug plans in California for 2027
10 plans in 2027, compared with 12 in 2026. Lowest monthly drug plan premium: $5.30 (2026: $0).
| Plan | Company | Monthly premium | Deductible | Star rating |
|---|---|---|---|---|
| Wellcare Value Script (PDP) | Wellcare | $5.30 | $700 | Not Applicable |
| Wellcare Classic (PDP) | Wellcare | $7.30 | $700 | Not Applicable |
| HealthSpring Assurance Rx (PDP) | HealthSpring | $9.30 | $700 | Not Applicable |
| Humana Basic Rx Plan (PDP) | Humana | $118.30 | $700 | Not Applicable |
| Humana Value Rx Plan (PDP) | Humana | $130.30 | $687 | Not Applicable |
| AARP Medicare Rx Saver from UHC (PDP) | UnitedHealthcare | $170.80 | $700 | Not Applicable |
| Humana Premier Rx Plan (PDP) | Humana | $191.20 | $350 | Not Applicable |
| Blue Shield Rx Plus (PDP) | Blue Shield of California | $210.00 | $700 | Not Applicable |
| AARP Medicare Rx Preferred from UHC (PDP) | UnitedHealthcare | $242.60 | $300 | Not Applicable |
| Blue Shield Rx Enhanced (PDP) | Blue Shield of California | $252.60 | $200 | Not Applicable |
Sources
- Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape file (data last updated 18 October 2026)
- Centers for Medicare & Medicaid Services, CY2026 Medicare Advantage and Part D Landscape file (September 2026 release)
- US Census Bureau, 2024 Gazetteer Files, counties
Checked 29 October 2026. Plans and premiums can change before 1 January 2027. Confirm any plan on Medicare.gov before you enrol.