Plan year 2027 · Contra Costa County, CA
Medicare Advantage plans leaving Contra Costa County, California in 2027
2 carriers are pulling plans from Contra Costa County for 2027: UnitedHealthcare and Central Health.
Step 1 · Check your plan
Is your plan leaving Contra Costa County?
Tap your plan to see its 2027 status in Contra Costa County, or type its name.
Is your plan one of these?
2 carriers are changing coverage in Contra Costa County for 2027: 2 plan terminations. Roughly 3,577 members in Contra Costa County are affected. 11 Medicare Advantage plans were offered here in 2026; 10 are offered for 2027. If you're enrolled in one of the plans below, you'll need to pick a new plan for January 1, 2027.
Carriers with changes in Contra Costa County
Every affected plan in Contra Costa County
Sorted by carrier. Effective dates are for the 2027 plan year.
| Carrier | Plan | What's changing | Effective | What members must do |
|---|---|---|---|---|
| Central Health Medicare Plan | Central Health Dual Access Plan (HMO D-SNP) H5649-024 · HMO D-SNP | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| UnitedHealthcare | AARP Medicare Advantage from UHC CA-8 (HMO-POS) H0543-189 · HMO-POS | Termination | January 1, 2027 | Choose a new plan before the deadline. |
Plans available in Contra Costa County for 2027
Losing a plan does not mean losing options. 10 Medicare Advantage plans from 5 carriers are offered in Contra Costa County, California for 2027. 5 have a $0 monthly premium, and 2 are D-SNP plans for people with both Medicare and Medicaid.
| Plan | Type | Monthly premium |
|---|---|---|
| Imperial Courage Plan (HMO)Imperial Health Plan of California, Inc.$0/moHMO | HMO | $0 |
| Imperial Dynamic Plan (HMO)Imperial Health Plan of California, Inc.$0/moHMO | HMO | $0 |
| Imperial Senior Value (HMO C-SNP)Imperial Health Plan of California, Inc.$0/moHMO C-SNP | HMO C-SNP | $0 |
| Kaiser Permanente Dual Complete North P17 (HMO D-SNP)Kaiser Permanente$0/moHMO D-SNP | HMO D-SNP | $0 |
| UHC Complete Care Support CA-8AP (HMO-POS C-SNP)UnitedHealthcare$0/moHMO-POS C-SNP | HMO-POS C-SNP | $0 |
Showing the 5 lowest-premium of 10 available plans. 2027 star ratings are published by CMS in early October 2026. Premiums shown are the consolidated Part C + D monthly premium.
Dates that matter
Your ANOC letter arrives
Carriers must mail the Annual Notice of Change — and non-renewal notices — before enrollment opens.
Annual Enrollment Period
Pick your 2027 plan. Coverage you choose starts January 1, 2027.
How it works →Special Enrollment Period
Members of terminated plans get extra time to choose a new Medicare Advantage or Part D plan.
How it works →Guaranteed-issue Medigap window
Losing your plan gives you the right to buy select Medigap policies with no health questions.
Medicare Advantage Open Enrollment
Already in a Medicare Advantage plan on January 1? You can make one change: switch plans or go back to Original Medicare.
How it works →
Step 2 · Tell us where to send your options
Your 2027 options in Contra Costa County
Step 3 · Choose your path
You're all set.
Both options are free. Either way, your information stays with our office.
Where else these carriers are leaving in California
UnitedHealthcare
ZIP codes in Contra Costa County
These changes apply to Medicare Advantage members living in Contra Costa County, including these ZIP codes:
94505, 94506, 94507, 94509, 94511, 94513, 94514, 94516, 94517, 94518, 94519, 94520, 94521, 94523, 94525, 94526, 94528, 94530, 94531, 94547, 94548, 94549, 94553, 94556, 94561, 94563, 94564, 94565, 94569, 94572, 94575, 94582, 94583, 94595, 94596, 94597, 94598, 94708, 94801, 94803, 94804, 94805, 94806